{
    "document_id": 13701,
    "page": 34,
    "width_pt": 612,
    "height_pt": 792,
    "rotation": 0,
    "pipeline_version": "paddleocr-vl-1.6+paul-48",
    "engine": "paddleocr_vl",
    "source_run_id": 13812,
    "item_count": 99,
    "counts_by_type": {
        "caption": 1,
        "figure": 3,
        "footnote": 1,
        "formula": 11,
        "header": 3,
        "table": 2,
        "table_cell": 27,
        "text": 51
    },
    "build_ms": 11,
    "items": [
        {
            "id": "p34.1",
            "order": 1,
            "type": "header",
            "bbox": {
                "l": 53.76,
                "t": 765.84,
                "r": 112.32,
                "b": 756
            },
            "text": "Invited Review",
            "attrs": {
                "block_label": "header"
            },
            "level": 2
        },
        {
            "id": "p34.2",
            "order": 2,
            "type": "header",
            "bbox": {
                "l": 349.92,
                "t": 766.08,
                "r": 558.96,
                "b": 756
            },
            "text": "Journal of Natural Products, 1999, Vol. 62, No. 3 537",
            "attrs": {
                "block_label": "header"
            },
            "level": 2
        },
        {
            "id": "p34.3",
            "order": 3,
            "type": "header",
            "bbox": {
                "l": 53.76,
                "t": 746.16,
                "r": 142.8,
                "b": 736.08
            },
            "text": "Table 4. (Continued)",
            "attrs": {
                "block_label": "figure_title"
            },
            "level": 2
        },
        {
            "id": "p34.4",
            "order": 4,
            "type": "text",
            "bbox": {
                "l": 224.64,
                "t": 734.16,
                "r": 386.64,
                "b": 724.32
            },
            "text": "Non-THF or THP Acetogenins (Continued)"
        },
        {
            "id": "p34.5",
            "order": 5,
            "type": "text",
            "bbox": {
                "l": 70.8,
                "t": 720.72,
                "r": 441.36,
                "b": 710.16
            },
            "text": "126. chatenaytrienin-2[p34.5.1] (reported as a mixture of chatenaytrienins 1 and 2) ([p34.5.2], MW512)",
            "children": [
                {
                    "id": "p34.5.1",
                    "order": 6,
                    "type": "formula",
                    "bbox": {
                        "l": 70.8,
                        "t": 720.72,
                        "r": 441.36,
                        "b": 710.16
                    },
                    "text": "²⁹",
                    "attrs": {
                        "latex": "^{29}",
                        "inline": true,
                        "text_offset": 22,
                        "text_span": 9,
                        "bbox_estimated": true,
                        "alt": "to the power of 29",
                        "mathml": "<math aria-label=\"to the power of 29\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msup><mi /><mrow><mn>29</mn></mrow></msup></mrow></math>"
                    }
                },
                {
                    "id": "p34.5.2",
                    "order": 7,
                    "type": "formula",
                    "bbox": {
                        "l": 70.8,
                        "t": 720.72,
                        "r": 441.36,
                        "b": 710.16
                    },
                    "text": "C₃₅H₆₀O₂",
                    "attrs": {
                        "latex": "C_{35}H_{60}O_{2}",
                        "inline": true,
                        "text_offset": 85,
                        "text_span": 9,
                        "bbox_estimated": true,
                        "alt": "C sub 35 H sub 60 O sub 2",
                        "mathml": "<math aria-label=\"C sub 35 H sub 60 O sub 2\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msub><mi>C</mi><mrow><mn>35</mn></mrow></msub><msub><mi>H</mi><mrow><mn>60</mn></mrow></msub><msub><mi>O</mi><mrow><mn>2</mn></mrow></msub></mrow></math>"
                    }
                }
            ]
        },
        {
            "id": "p34.6",
            "order": 8,
            "type": "figure",
            "bbox": {
                "l": 152.16,
                "t": 710.64,
                "r": 458.88,
                "b": 611.52
            },
            "text": "",
            "attrs": {
                "block_label": "image"
            },
            "children": [
                {
                    "id": "p34.6.1",
                    "order": 9,
                    "type": "text",
                    "bbox": {
                        "l": 155.28,
                        "t": 648.72,
                        "r": 310.8,
                        "b": 638.88
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                    "text": "Position 11-12 15-16 19-20\n [p34.6.1.1]H (δ) 5.36-5.41 5.36-5.41 5.36-5.41\n [p34.6.1.2]C (δ) 129.1-130.4 129.1-130.4 129.1-130.4",
                    "children": [
                        {
                            "id": "p34.6.1.1",
                            "order": 10,
                            "type": "formula",
                            "bbox": {
                                "l": 155.28,
                                "t": 648.72,
                                "r": 310.8,
                                "b": 638.88
                            },
                            "text": "¹",
                            "attrs": {
                                "latex": "^{1}",
                                "inline": true,
                                "text_offset": 28,
                                "text_span": 11,
                                "bbox_estimated": true,
                                "alt": "to the power of 1",
                                "mathml": "<math aria-label=\"to the power of 1\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msup><mi /><mrow><mn>1</mn></mrow></msup></mrow></math>"
                            }
                        },
                        {
                            "id": "p34.6.1.2",
                            "order": 11,
                            "type": "formula",
                            "bbox": {
                                "l": 155.28,
                                "t": 648.72,
                                "r": 310.8,
                                "b": 638.88
                            },
                            "text": "¹³",
                            "attrs": {
                                "latex": "^{13}",
                                "inline": true,
                                "text_offset": 76,
                                "text_span": 11,
                                "bbox_estimated": true,
                                "alt": "to the power of 13",
                                "mathml": "<math aria-label=\"to the power of 13\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msup><mi /><mrow><mn>13</mn></mrow></msup></mrow></math>"
                            }
                        }
                    ]
                }
            ]
        },
        {
            "id": "p34.7",
            "order": 12,
            "type": "text",
            "bbox": {
                "l": 71.04,
                "t": 609.12,
                "r": 479.76,
                "b": 589.2
            },
            "text": "Oil. UV (λmax, MeOH, nm): 214 MS: CIMS (isobutane) m/z 513. NMR: ¹H NMR (400 MHz, CDCl₃), ¹³C NMR (50 MHz, CDCl₃). Source: Annona nutans, roots."
        },
        {
            "id": "p34.8",
            "order": 13,
            "type": "text",
            "bbox": {
                "l": 71.04,
                "t": 585.84,
                "r": 441.84,
                "b": 575.52
            },
            "text": "127. chatenaytrienin-3[p34.8.1] (reported as a mixture of chatenaytrienins 3 and 4) (C [p34.8.2]H [p34.8.3]O[p34.8.4], MW54O)",
            "children": [
                {
                    "id": "p34.8.1",
                    "order": 14,
                    "type": "formula",
                    "bbox": {
                        "l": 71.04,
                        "t": 585.84,
                        "r": 441.84,
                        "b": 575.52
                    },
                    "text": "²⁹",
                    "attrs": {
                        "latex": "^{29}",
                        "inline": true,
                        "text_offset": 22,
                        "text_span": 9,
                        "bbox_estimated": true,
                        "alt": "to the power of 29",
                        "mathml": "<math aria-label=\"to the power of 29\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msup><mi /><mrow><mn>29</mn></mrow></msup></mrow></math>"
                    }
                },
                {
                    "id": "p34.8.2",
                    "order": 15,
                    "type": "text",
                    "bbox": {
                        "l": 71.04,
                        "t": 585.84,
                        "r": 441.84,
                        "b": 575.52
                    },
                    "text": "₃₇",
                    "attrs": {
                        "inline": true,
                        "text_offset": 87,
                        "text_span": 9,
                        "bbox_estimated": true
                    }
                },
                {
                    "id": "p34.8.3",
                    "order": 16,
                    "type": "text",
                    "bbox": {
                        "l": 71.04,
                        "t": 585.84,
                        "r": 441.84,
                        "b": 575.52
                    },
                    "text": "₆₆",
                    "attrs": {
                        "inline": true,
                        "text_offset": 98,
                        "text_span": 9,
                        "bbox_estimated": true
                    }
                },
                {
                    "id": "p34.8.4",
                    "order": 17,
                    "type": "text",
                    "bbox": {
                        "l": 71.04,
                        "t": 585.84,
                        "r": 441.84,
                        "b": 575.52
                    },
                    "text": "₂",
                    "attrs": {
                        "inline": true,
                        "text_offset": 108,
                        "text_span": 9,
                        "bbox_estimated": true
                    }
                }
            ]
        },
        {
            "id": "p34.9",
            "order": 18,
            "type": "figure",
            "bbox": {
                "l": 153.36,
                "t": 570.96,
                "r": 456.48,
                "b": 477.36
            },
            "text": "",
            "attrs": {
                "block_label": "image"
            },
            "children": [
                {
                    "id": "p34.9.1",
                    "order": 19,
                    "type": "text",
                    "bbox": {
                        "l": 153.12,
                        "t": 516.48,
                        "r": 368.88,
                        "b": 480.48
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                    "text": "Position 15 16 19 20\n [p34.9.1.1]H (δ) 5.38-5.41 m 5.38-5.41 m 5.38-5.41 m 5.38-5.41 m\n [p34.9.1.2]C (δ) 128.96 130.20 129.44 130.20",
                    "children": [
                        {
                            "id": "p34.9.1.1",
                            "order": 20,
                            "type": "formula",
                            "bbox": {
                                "l": 153.12,
                                "t": 516.48,
                                "r": 368.88,
                                "b": 480.48
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                            "text": "¹",
                            "attrs": {
                                "latex": "^{1}",
                                "inline": true,
                                "text_offset": 22,
                                "text_span": 11,
                                "bbox_estimated": true,
                                "alt": "to the power of 1",
                                "mathml": "<math aria-label=\"to the power of 1\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msup><mi /><mrow><mn>1</mn></mrow></msup></mrow></math>"
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                        },
                        {
                            "id": "p34.9.1.2",
                            "order": 21,
                            "type": "text",
                            "bbox": {
                                "l": 153.12,
                                "t": 516.48,
                                "r": 368.88,
                                "b": 480.48
                            },
                            "text": "¹³",
                            "attrs": {
                                "inline": true,
                                "text_offset": 88,
                                "text_span": 11,
                                "bbox_estimated": true
                            }
                        }
                    ]
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            ]
        },
        {
            "id": "p34.10",
            "order": 22,
            "type": "figure",
            "bbox": {
                "l": 153.12,
                "t": 463.2,
                "r": 456.72,
                "b": 370.32
            },
            "text": "",
            "attrs": {
                "block_label": "image"
            },
            "children": [
                {
                    "id": "p34.10.1",
                    "order": 23,
                    "type": "text",
                    "bbox": {
                        "l": 154.32,
                        "t": 407.52,
                        "r": 315.84,
                        "b": 372.48
                    },
                    "text": "Position 13-14 17-18 21-22\n[p34.10.1.1] ([p34.10.1.2]) 5.36-5.41 5.36-5.41 5.36-5.41\n[p34.10.1.3] ([p34.10.1.4]) 129.1-130.4 129.1-130.4 129.1-130.4",
                    "children": [
                        {
                            "id": "p34.10.1.1",
                            "order": 24,
                            "type": "text",
                            "bbox": {
                                "l": 154.32,
                                "t": 407.52,
                                "r": 315.84,
                                "b": 372.48
                            },
                            "text": "¹H",
                            "attrs": {
                                "inline": true,
                                "text_offset": 27,
                                "text_span": 12,
                                "bbox_estimated": true
                            }
                        },
                        {
                            "id": "p34.10.1.2",
                            "order": 25,
                            "type": "text",
                            "bbox": {
                                "l": 154.32,
                                "t": 407.52,
                                "r": 315.84,
                                "b": 372.48
                            },
                            "text": "δ",
                            "attrs": {
                                "inline": true,
                                "text_offset": 41,
                                "text_span": 12,
                                "bbox_estimated": true
                            }
                        },
                        {
                            "id": "p34.10.1.3",
                            "order": 26,
                            "type": "text",
                            "bbox": {
                                "l": 154.32,
                                "t": 407.52,
                                "r": 315.84,
                                "b": 372.48
                            },
                            "text": "¹³C",
                            "attrs": {
                                "inline": true,
                                "text_offset": 85,
                                "text_span": 12,
                                "bbox_estimated": true
                            }
                        },
                        {
                            "id": "p34.10.1.4",
                            "order": 27,
                            "type": "text",
                            "bbox": {
                                "l": 154.32,
                                "t": 407.52,
                                "r": 315.84,
                                "b": 372.48
                            },
                            "text": "δ",
                            "attrs": {
                                "inline": true,
                                "text_offset": 99,
                                "text_span": 12,
                                "bbox_estimated": true
                            }
                        }
                    ]
                }
            ]
        },
        {
            "id": "p34.11",
            "order": 28,
            "type": "text",
            "bbox": {
                "l": 71.04,
                "t": 368.16,
                "r": 506.4,
                "b": 347.76
            },
            "text": "Oil. [α]D: +25° (c Q.18, CHCl₃). UV (λmax, MeOH, nm): 214. IR (νmax, film, cm⁻¹): 2929, 2857, 1761, 1657, 755. MS: CIMS m/z 541. NMR: ¹H NMR (400 MHz, CDCl₃), ¹³C NMR (50 MHz, CDCl₃). Source: Annona nutans, roots."
        },
        {
            "id": "p34.12",
            "order": 29,
            "type": "text",
            "bbox": {
                "l": 72.24,
                "t": 345.6,
                "r": 216.48,
                "b": 334.8
            },
            "text": "129. longanin[p34.12.1] ([p34.12.2], MW566)",
            "children": [
                {
                    "id": "p34.12.1",
                    "order": 30,
                    "type": "text",
                    "bbox": {
                        "l": 72.24,
                        "t": 345.6,
                        "r": 216.48,
                        "b": 334.8
                    },
                    "text": "¹³¹",
                    "attrs": {
                        "inline": true,
                        "text_offset": 13,
                        "text_span": 10,
                        "bbox_estimated": true
                    }
                },
                {
                    "id": "p34.12.2",
                    "order": 31,
                    "type": "formula",
                    "bbox": {
                        "l": 72.24,
                        "t": 345.6,
                        "r": 216.48,
                        "b": 334.8
                    },
                    "text": "C₃₅H₆₆O₅",
                    "attrs": {
                        "latex": "C_{35}H_{66}O_{5}",
                        "inline": true,
                        "text_offset": 25,
                        "text_span": 10,
                        "bbox_estimated": true,
                        "alt": "C sub 35 H sub 66 O sub 5",
                        "mathml": "<math aria-label=\"C sub 35 H sub 66 O sub 5\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msub><mi>C</mi><mrow><mn>35</mn></mrow></msub><msub><mi>H</mi><mrow><mn>66</mn></mrow></msub><msub><mi>O</mi><mrow><mn>5</mn></mrow></msub></mrow></math>"
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                }
            ]
        },
        {
            "id": "p34.13",
            "order": 32,
            "type": "formula",
            "bbox": {
                "l": 153.36,
                "t": 327.6,
                "r": 457.2,
                "b": 236.64
            },
            "text": "",
            "attrs": {
                "block_label": "image",
                "alt": "Skeletal structure of a long-chain butenolide (alpha-substituted butenolide) with three hydroxyl groups at C4, C10 and C18,…",
                "source": "vision"
            }
        },
        {
            "id": "p34.14",
            "order": 33,
            "type": "table",
            "bbox": {
                "l": 154.56,
                "t": 272.64,
                "r": 287.28,
                "b": 237.12
            },
            "text": "",
            "attrs": {
                "block_label": "table",
                "n_rows": 3,
                "n_cols": 4,
                "integrity": {
                    "skipped": "no_text_layer"
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            "children": [
                {
                    "id": "p34.14.1",
                    "order": 34,
                    "type": "table_cell",
                    "bbox": {
                        "l": 154.56,
                        "t": 272.64,
                        "r": 187.74,
                        "b": 260.8
                    },
                    "text": "Position",
                    "attrs": {
                        "row": 0,
                        "col": 0,
                        "rowspan": 1,
                        "colspan": 1,
                        "column_header": true,
                        "header_source": "heuristic"
                    }
                },
                {
                    "id": "p34.14.2",
                    "order": 35,
                    "type": "table_cell",
                    "bbox": {
                        "l": 187.74,
                        "t": 272.64,
                        "r": 220.92,
                        "b": 260.8
                    },
                    "text": "4",
                    "attrs": {
                        "row": 0,
                        "col": 1,
                        "rowspan": 1,
                        "colspan": 1,
                        "column_header": true,
                        "header_source": "heuristic"
                    }
                },
                {
                    "id": "p34.14.3",
                    "order": 36,
                    "type": "table_cell",
                    "bbox": {
                        "l": 220.92,
                        "t": 272.64,
                        "r": 254.1,
                        "b": 260.8
                    },
                    "text": "10",
                    "attrs": {
                        "row": 0,
                        "col": 2,
                        "rowspan": 1,
                        "colspan": 1,
                        "column_header": true,
                        "header_source": "heuristic"
                    }
                },
                {
                    "id": "p34.14.4",
                    "order": 37,
                    "type": "table_cell",
                    "bbox": {
                        "l": 254.1,
                        "t": 272.64,
                        "r": 287.28,
                        "b": 260.8
                    },
                    "text": "18",
                    "attrs": {
                        "row": 0,
                        "col": 3,
                        "rowspan": 1,
                        "colspan": 1,
                        "column_header": true,
                        "header_source": "heuristic"
                    }
                },
                {
                    "id": "p34.14.5",
                    "order": 38,
                    "type": "table_cell",
                    "bbox": {
                        "l": 154.56,
                        "t": 260.8,
                        "r": 187.74,
                        "b": 248.96
                    },
                    "text": "¹H ( δ)",
                    "attrs": {
                        "row": 1,
                        "col": 0,
                        "rowspan": 1,
                        "colspan": 1
                    }
                },
                {
                    "id": "p34.14.6",
                    "order": 39,
                    "type": "table_cell",
                    "bbox": {
                        "l": 187.74,
                        "t": 260.8,
                        "r": 220.92,
                        "b": 248.96
                    },
                    "text": "3.85 m",
                    "attrs": {
                        "row": 1,
                        "col": 1,
                        "rowspan": 1,
                        "colspan": 1
                    }
                },
                {
                    "id": "p34.14.7",
                    "order": 40,
                    "type": "table_cell",
                    "bbox": {
                        "l": 220.92,
                        "t": 260.8,
                        "r": 254.1,
                        "b": 248.96
                    },
                    "text": "3.61 m",
                    "attrs": {
                        "row": 1,
                        "col": 2,
                        "rowspan": 1,
                        "colspan": 1
                    }
                },
                {
                    "id": "p34.14.8",
                    "order": 41,
                    "type": "table_cell",
                    "bbox": {
                        "l": 254.1,
                        "t": 260.8,
                        "r": 287.28,
                        "b": 248.96
                    },
                    "text": "3.61 m",
                    "attrs": {
                        "row": 1,
                        "col": 3,
                        "rowspan": 1,
                        "colspan": 1
                    }
                },
                {
                    "id": "p34.14.9",
                    "order": 42,
                    "type": "table_cell",
                    "bbox": {
                        "l": 154.56,
                        "t": 248.96,
                        "r": 187.74,
                        "b": 237.12
                    },
                    "text": "¹³C ( δ)",
                    "attrs": {
                        "row": 2,
                        "col": 0,
                        "rowspan": 1,
                        "colspan": 1
                    }
                },
                {
                    "id": "p34.14.10",
                    "order": 43,
                    "type": "table_cell",
                    "bbox": {
                        "l": 187.74,
                        "t": 248.96,
                        "r": 220.92,
                        "b": 237.12
                    },
                    "text": "69.9",
                    "attrs": {
                        "row": 2,
                        "col": 1,
                        "rowspan": 1,
                        "colspan": 1
                    }
                },
                {
                    "id": "p34.14.11",
                    "order": 44,
                    "type": "table_cell",
                    "bbox": {
                        "l": 220.92,
                        "t": 248.96,
                        "r": 254.1,
                        "b": 237.12
                    },
                    "text": "71.7",
                    "attrs": {
                        "row": 2,
                        "col": 2,
                        "rowspan": 1,
                        "colspan": 1
                    }
                },
                {
                    "id": "p34.14.12",
                    "order": 45,
                    "type": "table_cell",
                    "bbox": {
                        "l": 254.1,
                        "t": 248.96,
                        "r": 287.28,
                        "b": 237.12
                    },
                    "text": "71.8",
                    "attrs": {
                        "row": 2,
                        "col": 3,
                        "rowspan": 1,
                        "colspan": 1
                    }
                }
            ]
        },
        {
            "id": "p34.15",
            "order": 46,
            "type": "text",
            "bbox": {
                "l": 72.96,
                "t": 233.52,
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