续断为川续断科植物川续断Dipsacus asper Wall. ex Henry的干燥根,作为传统中药,具有补肝肾、强筋骨、续折伤等功效,临床上常用于治疗骨质疏松、腰腿酸软、骨折、流产等疾病[1]。研究表明,续断中化学成分主要为三萜皂苷类、环烯醚萜苷类、黄酮类、挥发油类等[2]。本实验对续断中化学成分进行研究,运用大孔树脂、反相硅胶及制备高效液相等色谱技术进行分离纯化,并根据理化性质和波谱数据鉴定化合物的结构。分离得到13个化合物,其中7个环烯醚萜苷和6个木脂素类化合物,分别鉴定为马钱苷(1)、獐牙菜苷(2)、6'-O-β-D- apiofuranosyl-sweroside(3)、续断苷H(4)、续断苷F(5)、续断苷E(6)、triplostoside A(7)、(7R,8S,7'R,8'S)-5-methoxyprinsepiol-4-O-β-D-glucopyranoside(8)、(7R,8S,7'R,8'S)-prinsepiol-4-O-β-D-glucopyranoside(9)、acanthoside D(10)、(7R,8S,7'R,8'S)-fraxiresinol- 4'-O-β-D-glucopyranoside(11)、(7R,8S,7'R,8'S)-8- hydroxypinoresinol-4'-O-β-D-glucopyranoside(12)、(7R,8S,7'R,8'S)-8-hydroxypinoresinol-4-O-β-D- glucopyranoside(13)。其中化合物8、9、11、12、13均为首次从该属植物中分离得到。
1 仪器与材料Bruker Av-600MHz超导核磁共振仪(瑞士Bruker公司);Thermo Fisher LTQ-Obitrap XL型质谱仪(美国Thermo Finnigan公司);Waters高效液相色谱仪,包括Waters 2535型泵,Waters 2998检测器,Empower Ⅲ色谱工作站(美国Waters公司);Agela CheetahtmTM中压制备液相色谱仪(天津博纳艾杰尔科技有限公司);三菱MCI GEL CHP20P树脂(北京绿百草科技有限公司);YMC Pack ODS中压色谱柱、YMC Pack ODS-A半制备色谱柱(日本YMC公司)。
实验材料采自贵州,由中国医学科学院药用植物研究所郭宝林教授鉴定为川续断Dipsacus asper Wall. ex Henry的干燥根。
2 提取与分离续断干燥根20 kg,砍成小段,用70%乙醇回流提取3次,每次2 h,浓缩得棕褐色浸膏2 620 g。取浸膏1 320 g经大孔树脂色谱分离,以乙醇-水(0、30∶70、50∶50、100)系统梯度洗脱。30%乙醇洗脱部分经MCI树脂色谱柱分离,甲醇-水(10∶90~90∶10)洗脱得组分Fr. A~E。Fr. A经ODS中压色谱柱分离,甲醇-水(15∶85~30∶70)洗脱得组分Fr. A1~3。Fr. A2经HPLC制备色谱分离,甲醇-水(25∶75)洗脱得到化合物1(35 mg)、2(42 mg);Fr. A2经HPLC制备色谱分离,乙腈-水(17∶83)洗脱得到化合物3(11 mg)、4(10 mg)。Fr. B经ODS中压色谱柱分离,甲醇-水(20∶80~80∶20)洗脱得组分Fr. B1~5。Fr. B1经HPLC制备色谱分离,乙腈-水(16∶84)洗脱得到化合物8(12 mg)、9(20 mg)、13(16 mg)。Fr. B2经HPLC制备色谱分离,乙腈-水(18∶82)洗脱,得化合物10(22 mg)、11(15 mg)、12(12 mg)。Fr. B4经HPLC制备色谱分离,乙腈-水(23∶77)洗脱得到化合物5(10 mg)、6(8 mg)。Fr. C经ODS中压制备色谱及HPLC制备色谱分离,乙腈-水(25∶75)洗脱得到化合物7(20 mg)。
3 结构鉴定化合物1:白色无定型粉末,ESI-MS m/z:413 [M+Na]+,分子式为C17H26O10。1H-NMR(600 MHz,CD3OD)δ:5.27(1H,d,J=4.5 Hz,H-1),7.39(1H,s ,H-3),3.11(1H,d,J=8.5 Hz,H-5),1.62(1H,m,H-6),1.84~1.91(1H,m,H-6),2.01~2.05(1H,m,H-8),2.25(1H,m,H-9),1.10(3H,d,J=6.5 Hz,H-10),4.65(1H,d,J=5.0 Hz,Glu-H-1 )。13C-NMR(150 MHz,CD3OD)δ:97.8(C-1),152.3(C-3),114.3(C-4),32.4(C-5),42.9(C-6),42.4(C-8),46.7(C-9),13.6(C-10),169.4(C-11),51.8(OCH3),100.3(Glu-C-1),74.9(Glu-C-2),75.2(Glu-C-3),74.9(Glu-C-4),77.8(Glu-C-5),63.0(Glu-C-6)。与文献报道[3]数据基本一致,确定化合物1为马钱苷。
化合物2:白色无定型粉末,ESI-MS m/z:381 [M+Na]+,分子式为C16H22O9。1H-NMR(600 MHz,CD3OD)δ:5.55(1H,d,J=4.5 Hz,H-1),7.59(1H,s,H-3),3.14~3.21(1H,m,H-5),1.67~1.80(2H,m,H-6),5.52~5.59(1H,m,H-8),2.70(1H,dd,J=5.5、8.5 Hz,H-9),5.31(1H,d,J=20.5 Hz,H-10),5.27(1H,d,J=10.5 Hz,H-10),4.68(1H,d,J=8.0 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:98.2(C-1),154.1(C-3),106.2(C-4),28.6(C-5),26.1(C-6),69.9(C-7),133.5(C-8),44.0(C-9),121.0(C-10),168.7(C-11),99.9(Glu-C-1),74.9(Glu-C-2),77.6(Glu-C-3),71.7(Glu-C-4),78.1(Glu-C-5),62.9(Glu-C-6)。与文献报道[4]数据基本一致,确定化合物2为獐牙菜苷。
化合物3:白色无定型粉末,ESI-MS m/z:513 [M+Na]+,分子式为C21H30O13。1H-NMR(600 MHz,CD3OD)δ:5.55(1H,d,J=3.0 Hz,H-1),7.60(1H,s ,H-3),3.13~3.21(1H,m,H-5),1.67~1.80(2H,m,H-6),5.51~5.57(1H,m,H-8),2.70~2.74(1H,m,H-9),5.34(1H,d,J=17.5 Hz,H-10),5.28(1H,d,J=10.5 Hz,H-10),4.67(1H,d,J=8.0 Hz,Glu-H-1),4.99(1H,d,J=3.0 Hz,Api-H-1)。13C-NMR(150 MHz,CD3OD)δ:98.4(C-1),154.1(C-3),106.2(C-4),28.6(C-5),26.1(C-6),69.9(C-7),133.4(C-8),44.1(C-9),121.2(C-10),168.7(C-11),100.1(Glu-H-1),78.0(Glu-H-2),80.7(Glu-H-3),71.7(Glu-H-4),78.1(Glu-H-5),68.8(Glu-H-6),111.2(Api-H-1),78.0(Api-H-2),80.7(Api-H-3),75.2(Api-H-4),65.7(Api-H-5)。与文献报道[5]数据基本一致,确定化合物3为6'-O-β-D-apiofuranosyl-sweroside。
化合物4:白色无定型粉末,ESI-MS m/z:543 [M+Na]+,分子式为C22H32O14。1H-NMR(600 MHz,CD3OD)δ:5.55(1H,d,J=4.0 Hz,H-1),7.60(1H,s ,H-3),3.13~3.21(1H,m,H-5),1.67~1.80(2H,m,H-6),3.87~3.91(1H,m,H-7),4.35~4.39(1H,m,H-7),5.52~5.57(1H,m,H-8),2.70~2.74(1H,m,H-9),5.32(1H,d,J=20.5 Hz,H-10),5.28(1H,d,J=10.5 Hz,H-10),4.73(1H,d,J=8.0 Hz,Glu-H-1'),4.67(1H,d,J=3.0 Hz,Glu-H-1'')。13C-NMR(150 MHz,CD3OD)δ:98.3(C-1),154.1(C-3),105.4(C-4),28.7(C-5),26.1(C-6),69.9(C-7),133.5(C-8),44.0(C-9),121.0(C-10),168.7(C-11),99.7(Glu-C -1'),74.3(Glu-C-2'),87.6(Glu-C-3'),70.2(Glu-C-4'),78.0(Glu-C-5'),62.8(Glu-C-6'),106.2(Glu-C-1''),75.7(Glu-C-2''),78.3(Glu-C-3''),71.8(Glu-C-4''),78.4(Glu-C-5''),62.8(Glu-C-6'')。与文献报道[6]数据基本一致,确定化合物4为续断苷H。
化合物5:白色无定型粉末,ESI-MS m/z:843 [M+Na]+,分子式为C22H32O14。1H-NMR(600 MHz,CD3OD)δ:unit A:5.54(1H,d,J=6.0 Hz,H-1),7.44(1H,s,H-3),3.13(1H,m,H-5),1.72~1.80(1H,m,H-6),1.83~1.99(1H,m,H-6),4.66(1H,q,J=6.0 Hz,H-7),5.74~5.82(1H,m,H-8),2.66(1H,dd,J=6.0、9.0 Hz,H-9),5.57(1H,d,J=18.0 Hz,H-10),5.24(1H,d,J=10.0 Hz,H-10),3.86(1H,m,H-12),3.26~3.40(1H,m,H-12),3.58(1H,m,H-13),3.91(1H,m,H-14),3.26~3.40(1H,m,H-14),4.71(1H,d,J=8.0 Hz,Glu-H-1');unit B:5.29(1H,d,J=4.5 Hz,H-1),7.42(1H,s,H-3),3.20(1H,br d,J=8.0 Hz,H-5),1.72~1.80(1H,m,H-6),2.31(1H,dd,J=8.0、14.0 Hz,H-6),5.20(1H,dd,J=4.5、5.0 Hz,H-7),2.06~2.17(1H,m,H-8),2.06~2.17(1H,m,H-9),1.08(3H,d,J=6.5 Hz,H-10),3.70(3H,s,OCH3),4.66(1H,d,J=8.0 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:unit A:97.9(C-1),153.5(C-3),113.6(C-4),31.3(C-5),36.2(C-6),102.5(C-7),136.1(C-8),45.6(C-9),119.8(C-10),168.6(C-11),72.6(C-12),65.2(C-13),72.5(C-14),100.4(Glu-C-1),74.9(Glu-C-2),78.2(Glu-C-3),71.7(Glu-C-4),78.5(Glu-C-5),63.0(Glu-C-6);unit B:97.6(C-1),152.6(C-3),112.4(C-4),32.6(C-5),40.6(C-6),78.6(C-7),41.2(C-8),47.3(C-9),13.9(C-10),169.6(OCH3),100.4(Glu-C-1),74.9(Glu-C-2 ),78.2(Glu-C-3),71.7(Glu-C-4),78.5(Glu-C-5),63.0(Glu-C-6)。与文献报道[6]数据基本一致,确定化合物5为续断苷F。
化合物6:白色无定型粉末,ESI-MS m/z:843 [M+Na]+,分子式为C22H32O14。1H-NMR(600 MHz,CD3OD)δ:unit A:5.52(1H,d,J=6.0 Hz,H-1),7.44(1H,s,H-3),2.99(1H,ddd,J=4.5、5.0、10.0 Hz,H-5),1.72~1.78(1H,m,H-6),1.94(1H,ddd,J=6.0、8.0、14.0 Hz,H-6),4.56(1H,dd,J=4.4、5.0 Hz,H-7),5.73~5.78(1H,m,H-8),2.67(1H,J=5.5、6.0、9.0 Hz,ddd,H-9),5.30(1H,d,J=18.0 Hz,H-10),5.25(1H,d,J=10.0 Hz,H-10),4.03(1H,ddd,J=1.5、5.0、1 0.5 Hz,H-12),3.19~3.32(1H,m,H-12),3.72(1H,dd,J=5.0、10.0 Hz,H-13),4.07(1H,ddd,J=1.5、5.0、10.5 Hz, H-14),3.19~3.32(1H,m,H-14),4.69(1H,d,J=8.0 Hz,Glu-H-1);unit B:5.34(1H,d,J=4.5 Hz,H-1),7.41(1H,s,H-3),3.13(1H,br d,J=8.0 Hz,H-5),1.72~1.78(1H,m,H-6),2.23(1H,dd,J=8.0、14.0 Hz,H-6b),5.17(1H,dd,J=4.5、5.0 Hz,H-7),2.08~2.14(1H,m,H-8),2.23(1H,ddd,J=4.0、9.0、9.0 Hz,H-9),1.08(3H,d,J=6.5 Hz,H-10),3.70(3H,s,OCH3),4.66(1H,d,J=8.0 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:unit A:97.9(C-1),153.5(C-3),113.8(C-4),30.1(C-5),35.9(C-6),101.9(C-7),136.2(C-8),45.7(C-9),119.8(C-10),168.6(C-11a),72.8(C-12a),62.1(C-13a),72.7(C-14),100.4(Glu-C-1),74.9(Glu-C-2),78.2(Glu-C-3),72.7(Glu-C-4),78.6(Glu-C-5),63.0(Glu-C-6);unit B:97.4(C-1),152.4(C-3),112.3(C-4),32.3(C-5),40.7(C-6),78.8(C-7),41.1(C-8),47.1(C-9),13.4(C-10),169.6(OCH3),100.3(Glu-C-1),74.8(Glu-C-2),78.2(Glu-C-3),71.6(Glu-C-4),78.5(Glu-C-5),62.8(Glu-C-6)。与文献报道[6]数据基本一致,确定化合物6为续断苷E。
化合物7:白色无定型粉末,ESI-MS m/z:815 [M+Na]+,分子式为C22H32O14。1H-NMR(600 MHz,CD3OD)δ:unit A:5.54(1H,d,J=6.6 Hz,H-1),7.47(1H,s,H-3),2.94(1H,q,J=7.2 Hz,H-5),1.74~1.80(1H,m,H-6),2.07~2.18(1H,m,H-6),4.54(1H,dd,J=4.0、7.0 Hz,H-7),5.73~5.81(1H,m,H-8),2.69~2.73(1H,m,H-9),5.34(1H,d,J=18.0 Hz,H-10),5.29(1H,d,J=10.0 Hz,H-10),3.31(6H,s,2×OCH3),4.54(1H,d,J=7.2 Hz,Glu-H-1);unit B:5.32(1H,d,J=4.4 Hz,H-1),7.45(1H,s,H-3),3.24(1H,dd,J=4. 0、8.0 Hz,H-5),1.64~1.70(1H,m,H-6),2.13~2.18(1H,m,H-6),5.20(1H,t,J=7.6 Hz,H-7),2.13~2.18(1H,m,H-8),2.32(3H,d,J=8.0、8.5 Hz,H-9),1.09(3H,d,J=6.5 Hz,H-10),3.71(3H,s,OCH3-11),4.46(1H,d,J=6.8 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:unit A:97.7(C-1),153.4(C-3),112.2(C-4),32.7(C-5),33.5(C-6),104.5(C-7),136.0(C-8),45.6(C-9),120.0(C-10),168.5(C-11),53.0(C-12),53.8(C-13),100.3(Glu-C-1),74.8(Glu-C-2),78.2(Glu-C-3),71.8(Glu-C-4),78.5(Glu-C-5),63.0(Glu-C-6),unit B:98.1(C-1),152.7(C-3),113.5(C-4),29.7(C-5),40.5(C-6),78.6(C-7),41.2(C-8),47.3(C-9),14.0(C-10),169.5(OCH3-11),51.9(C-12b),100.4(Glu-C-1),74.9(Glu-C-2),78.2(Glu-C-3),71.7(Glu-C-4),78.6(Glu-C-5),63.0(Glu-C-6)。与文献报道[3]数据基本一致,确定化合物7为triplostoside A。
化合物8:白色无定型粉末,HR-ESI-MS m/z:605 [M+Na]+,分子式为C27H34O14。1H-NMR(600 MHz,CD3OD)δ:6.72(1H,s,H-2),6.72(1H,s,H-6),5.01(1H,s,H-7),4.01(1H,d,J=9.5 Hz,H-9),4.13(1H,t,J=9.5 Hz,H-9),3.85(3H,s,OCH3-3),3.85(3H,s,OCH3-5),7.11(1H,d,J=1.5 Hz,H-2'),7.15(1H,d,J=8.0 Hz,H-5'),6.95(1H,dd,J=1.5、8.0 Hz,H-6'),4.97(1H,s,H-7'),4.01(1H,d,J=9.5 Hz,H-9'),4.13(1H,t,J=9.5 Hz,H-9'),3.87(3H,s,OCH3-3'),4.87(1H,d,J=7.5 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:128.9(C-1),106.5(C-2),149.1(C-3),136.6(C-4),149.1(C-5),106.5(C-6),89.3(C-7),89.4(C-8),77.0(C-9),56.0(OCH3-3),128.9(C-1'),113.8(C-2'),150.6(C-3'),147.9(C-4'),117.7(C-5'),121.6(C-6'),88.9(C-7'),89.4(C-8'),77.0(C-9'),55.7(OCH3-3'),103.1(Glu-C-1),75.1(Glu-C-2),78.0(Glu-C-3),71.6(Gl u-C-4),78.4(Glu-C-5),62.7(Glu-C-6)。与文献报道[7]数据基本一致,确定化合物8为(7R,8S,7'R, 8'S)-5-methoxyprinsepiol-4-O-β-D-glucopyranoside,首次从川续断属植物中分离得到。
化合物9:白色无定型粉末,HR-ESI-MS m/z:575 [M+Na]+,分子式为C26H32O13。1H-NMR(600 MHz,CD3OD)δ:7.11(1H,d,J=1.5 Hz,H-2),7.15(1H,d,J=8.0 Hz,H-5),6.95(1H,dd,J=1.5、8.0 Hz,H-6),5.01(1H,s,H-7),4.12(1H,d,J=9.5 Hz,H-9),3.99(1H,d,J=9.5 Hz,H-9),3.87(3H,s,3-OCH3),7.04(1H,d,J=1.5 Hz,H-2'),6.78(1H,d,J=8.0 Hz,H-5'),6.95(1H,dd,J=1.5、8.0 Hz,H-6'),4.89(1H,s,H-7'),4.12(1H,d,J=9.5 Hz,H-9'),3.99(1H,d,J=9.5 Hz,H-9'),3.86(3H,s,OCH3-3'),4.89(1H,d,J=7.5 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:133.4(C-1),113.8(C-2),150.6(C-3),147.9(C-4),117.7(C-5),121.6(C-6),88.9(C-7),89.5(C-8),77.0(C-9),57.0(OCH3-3),129.7(C-1'),113.0(C-2'),148.9(C-3'),147.7(C-4'),115.9(C-5'),121.8(C-6'),89.2(C-7' ),89.3(C-8'),77.0(C-9'),56.6(OCH3-3'),103.1(Glu-C-1),75.1(Glu-C-2),78.0(Glu-C-3),71.6(Glu-C-4),78.4(Glu-C-5),62.7(Glu-C-6)。与文献报道[8]数据基本一致,确定化合 物9为(7R,8S,7'R,8'S)- prinsepiol-4-O-β-D-glucopyranoside,首次从川续断属植物中分离得到。
化合物10:白色无定型粉末,HR-ESI-MS m/z:765 [M+Na]+,分子式为C34H46O18。由于该化合物结构的对称性,核磁信号只显示一半信号。1H-NMR(600 MHz,DMSO-d6)δ:6.66(2H,s,H-2、2'),6.66(2H,s,H-6、6'),4.67(2H,d,H-7、7'),3.09(2H,m,H-8、8'),4.20(2H,m,H-9、9'),3.83(2H,d,J=9.0 Hz,H-9、9'),3.76(12H,s,OCH3-3、3'、5、5')。13C-NMR(150 MHz,DMSO-d6)δ:133.7(C-1、1'),104.2(C-2、2'),152.6(C-3、3'),137.1(C-4、4'),152.6(C-5、5'),104.2(C-6、6'),85.0(C-7、7'),53.6(C-8、8'),71.3(C-9、9'),55.6(OCH3-3、3'、5、5'),102.6(Glu-C-1,Glu-C-1')。与文献报道[9]数据基本一致,确定化合物10为acanthoside D。
化合物11:白色无定型粉末,HR-ESI-MS m/z:589 [M+Na]+,分子式为C27H35O13。1H-NMR(600 MHz,CD3OD)δ:6.72(1H,s,H-2),6.72(1H,s,H-6),4.69(1H,s,H-7),4.09(1H,d,J=9.0 Hz,H-9),3.83(1H,d,J=9.0 Hz,H-9),3.86(6H,s,OCH3-3、5),7.12(1H,d,J=1.5 Hz,H-2'),7.16(1H,d,J=8.0 Hz,H-5'),6.97(1H,dd,J=1.5、8.0 Hz,H-6'),4.89(1H,d,J=6.0 Hz,H-7'),3.03(1H,m,H-8'),4.48(1H,t,J=9.0 Hz,H-9'),3.69(1H,d,J=9.0 Hz,H-9'),3.88(3H,s,OCH3-3'),4.89(1H,d,J=7.5 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:128.4(C-1),106.5(C-2),149.2(C-3),136.7(C-4),149.2(C-5),106.5(C-6),89.6(C-7),93.1(C-8),76.4(C-9),57.0(OCH3-3、5),137.5(C-1'),112.2(C-2'),151.2(C-3'),147.8(C-4'),118.2(C-5'),120.4(C-6'),87.5(C-7'),62.7(C-8'),72.3(C-9'),57.0(OCH3-3'),103.1(Glu-C-1),75.1(Glu-C-2),78.1 (Glu-C-3),71.6(Glu-C-4),78.4(Glu-C-5),62.7(Glu-C-6)。与文献报道[8]数据基本一致,确定化合物11为(7R,8S,7'R,8'S)-fraxiresinol-4'-O-β-D- glucopyranoside,首次从川续断属植物中分离得到。
化合物12:白色无定型粉末,HR-ESI-MS m/z:559 [M+Na]+,分子式为C26H32O12。1H-NMR(600 MHz,CD3OD)δ:7.05(1H,d,J=1.5 Hz,H-2),7.15(1H,d,J=8.0 Hz,H-5),6.95(1H,dd,J=1.5、8.0 Hz,H-6),4.72(1H,s,H-7),4.06(1H,d,J=9.0 Hz,H-9),3.77(1H,d,J=9.0 Hz,H-9),3.88(3H,s,OCH3-3),7.11(1H,d,J=1.5 Hz,H-2'),6.78(1H,d,J=8.0 Hz,H-5'),6.87(1H,dd,J=1.5、8.0 Hz,H-6'),4.84(1H,d,J=6.0 Hz,H-7'),3.04(1H,m,H-8'),4.47(1H,t,J=9.0 Hz,H-9'),3.68(1H,d,J=9.0 Hz,H-9'),3.86(3H,s,OCH3-3'),4.88(1H,d,J=7.5 Hz,Glu-H-1)。13C-NMR(150 MHz,CD3OD)δ:133.0(C-1),113.7(C-2),150.7(C-3),149.3(C-4),117.8(C-5),121.5(C-6),89.1(C-7),93.1(C-8),76.3(C-9),133.8(C-1'),111.5(C-2'),147.9(C-3'),147.6(C-4'),116.3(C-5'),120.7(C-6'),88.0(C-7'),62.7(C-8'),72.3(C-9'),103.1(Glu-C-1),75.1(Glu-C-2),78.0(Glu-C-3),71.5(Glu-C-4),78.4(Glu-C-5),62.6(Glu-C-6)。与文献报道[10]数据基本一致,确定化合物12为(7R,8S,7'R,8'S)-8-hydroxy- pinoresinol-4'-O-β-D-glucopyranoside,首次从川续断属植物中分离得到。
化合物13:无色不定型粉末,HR-ESI-MS m/z:559 [M+Na]+,分子式为C26H32O12。1H-NMR(600 MHz,DMSO-d6)δ:7.02(1H,d,J=1.5 Hz,H-2),7.06(1H,d,J=8.0 Hz,H-5),6.90(1H,dd,J=1.5、8.0 Hz,H-6),4.52(1H,s,H-7),4.94(1H,d,J=9.0 Hz,H-9),3.73(1H,d,J=9.0 Hz,H-9),3.77(3H,s,OCH3-3),6.95(1H,d,J=1.5 Hz,H-2'),6.70(1H,d,J=8.0 Hz,H-5'),6.76(1H,dd,J=1.5、8.0 Hz,H-6'),4.80(1H,d,J=6.0 Hz,H-7'),2.89(1H,m,H-8'),4.36(1H,t,J=9.0 Hz,H-9'),3.66(1H,d,J=9.0 Hz,H-9'),3.75(3H,s,OCH3-3'),4.88(1H,d,J=7.5 Hz,Glu-H-1)。13C-NMR(150 MHz,DMSO-d6)δ:128.0(C-1),110.9(C-2),146.9(C-3),145.9(C-4),114.5(C-5),118.3(C-6),87.1(C-7),91.0(C-8),74.7(C-9),55.7(OCH3-3),135.3(C-1'),112.3(C-2'),148.9(C-3'),145.9(C-4'),115.2(C-5'),120.2(C-6'),85.1(C-7'),60.9(C-8'),70.3(C-9'),55.6(OCH3-3'),100.1(Glu-C-1),73.2(Glu-C-2),76.8(Glu-C-3),69.7(Glu-C-4),77.0(Glu-C-5),60.7(Glu-C-6)。与文献报道[10]数据基本一致,确定化合物13为(7R,8S,7'R,8'S)-8-hydroxypinoresinol-4-O-β-D-glucopyran- oside,首次从川续断属植物中分离得到。
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