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(3H,s,H-19),1.22(3H,s,H-18),1.57(3H,s,H-29),1.59
                                                           (3H,s,H-27),1.65(3H,s,H-26),2.07(3H,s,H-28),3.58
                                                           (1H,m,H-3),4.51(1H,m,H-6),3.94(1H,m,H-12),
                                                            5.10(1H,s,H-21),4.88(1H,s,H-21),5.27(1H,t,J=5.0
                                                            Hz,H-24),5.02(1H,d,J=8.0 Hz,H-1′)。 C-NMR
                                                                                                    13
                                                           (C5D5N,150 MHz)δ:39.9(C-1),28.3(C-2),79.0(C-3),
                R=COCH3
                                                            40.8(C-4),61.9(C-5),80.4(C-6),45.7(C-7),41.7(C-8),
                   化合物1                   化合物2
                                                            51.1(C-9),40.1(C-10),33.1(C-11),72.8(C-12),52.5
                                                           (C-13),51.5(C-14),32.9(C-15),31.1(C-16),48.7
                                                           (C-17),18.1(C-18),18.1(C-19),155.8(C-20),108.5
                                                           (C-21),34.1(C-22),27.4(C-23),125.7(C-24),131.6
                                                           (C-25),26.1(C-26),17.7(C-27),32.1(C-28),16.7
                                                           (C-29),17.1(C-30),106.4(C-1′),75.9(C-2′),80.1
                                          R=COCH3
                   化合物3                   化合物4             (C-3′),72.2(C-4′),78.5(C-5′),63.5(C-6′)。结合氢谱
                                                                                [11]
                                                            和碳谱数据与相关文献 参考数据基本一致,经过综合
                                                            分析后,鉴定此化合物为人参皂苷Rk3。
                                                                化合物3:白色针晶(甲醇),分子式为C36H58O8,熔点
                                                            180~183 ℃ ,三 萜 皂 苷 类 特 征 性 反 应 均 显 阳 性 。
                                                            1 H-NMR(C5D5N,500 MHz)δ :1.07(3H,s,H-27),1.09
                                                           (3H,s,H-25),1.10(3H,s,H-26),1.21(3H,s,H-23),1.32
                   化合物5                   化合物6             (3H,s,H-30),1.41(3H,s,H-29),1.43(3H,s,H-24),3.72
                                                           (1H,m,H-3),5.64(1H,s,H-12),6.52(1H,d,J=8.0 Hz,
                                                                    13
                                                            H-1′)。 C-NMR(C5D5N,150 MHz)δ:39.3(C-1),28.4
                                                           (C-2),78.4(C-3),39.7(C-4),56.2(C-5),19.2(C-6),33.5
                                                           (C-7),40.3(C-8),48.5(C-9),37.7(C-10),24.2(C-11),
                                                            123.2(C-12),144.5(C-13),42.5(C-14),28.6(C-15),23.8
                                                           (C-16),47.3(C-17),42.1(C-18),46.6(C-19),31.1
                                                           (C-20),34.3(C-21),32.9(C-22),29.1(C-23),16.9
                                                           (C-24),16.0(C-25),17.9(C-26),26.4(C-27),176.8
                   化合物7                   化合物8             (C-28),33.4(C-29),24.0(C-30),96.1(C-1′),74.4
                      图1   化合物1-8的结构                       (C-2′),79.2(C-3′),71.4(C-4′),79.7(C-5′),62.5
                  Fig 1  Structure of compound 1-8         (C-6′)。结合氢谱和碳谱数据与相关文献                [12-13] 参考数据

        150 MHz)δ :39.9(C-1),28.3(C-2),79.0(C-3),40.7       基本一致,经过综合分析后,鉴定此化合物为齐墩果
        (C-4),61.8(C-5),80.1(C-6),46.0(C-7),41.8(C-8),51.1  酸-28-O-β-D-吡喃葡萄糖苷。
        (C-9),40.2(C-10),33.1(C-11),72.8(C-12),52.6             化合物4:白色粉末(甲醇),分子式为C38H62O9,熔点
        (C-13),51.6(C-14),31.9(C-15),30.4(C-16),48.6        165~166 ℃ ,三 萜 皂 苷 类 特 征 性 反 应 均 显 阳 性 。
        (C-17),17.3(C-18),17.8(C-19),55.8(C-20),108.6       1 H-NMR(C5D5N,500 MHz)δ :0.95(3H,s,H-30),1.05
        (C-21),33.2(C-22),27.5(C-23),125.7(C-24),131.7     (3H,s,H-19),1.28(3H,s,H-18),1.54(3H,s,H-29),1.56
        (C-25),26.1(C-26),18.2(C-27),31.1(C-28),16.9       (3H,s,H-27),1.60(3H,s,H-26),1.83(3H,s,H-21),2.04
        (C-29),18.2(C-30),106.3(C-1′),75.8(C-2′),79.6      (3H,s,H-28),2.05(3H,s,6′-COCH3 ),3.50(1H,m,
        (C-3′),71.8(C-4′),75.5(C-5′),65.2(C-6′),171.3       H-3),4.40(1H,t,J=14.5 Hz,H-6),3.99(1H,m,H-12),
        (C-1″),21.3(C-2″)。结合氢谱和碳谱数据与相关文                     5.07(1H,d,J=6.5 Hz,H-1′)。 C-NMR(C5D5N,150
                                                                                         13
        献 参考数据基本一致,经过综合分析后,鉴定此化合                            MHz)δ:40.0(C-1),28.3(C-2),78.9(C-3),40.7(C-4),
           [10]
        物为人参皂苷Rs7。                                          61.8(C-5),79.6(C-6),46.0(C-7),41.8(C-8),50.9(C-9),
            化合物2:白色粉末(甲醇),分子式为C36H60O8,熔点                   40.2(C-10),32.7(C-11),72.9(C-12),50.8(C-13),51.3
        167~170 ℃ ,三 萜 皂 苷 类 特 征 性 反 应 均 显 阳 性 。           (C-14),33.1(C-15),29.2(C-16),50.0(C-17),17.4
        1 H-NMR(C5D5N,500 MHz)δ :0.82(3H,s,H-30),1.03      (C-18),17.8(C-19),140.4(C-20),13.5(C-21),124.2


        ·204  ·  China Pharmacy 2019 Vol. 30 No. 2                                   中国药房    2019年第30卷第2期
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