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暴马子皮苯丙素类化学成分研究

2021-01-04郭爽刘艳管伟潘娟刘源杨炳友

中医药信息 2021年4期
关键词:分子式黄色乙醇

郭爽,刘艳,管伟,潘娟,刘源,杨炳友

(黑龙江中医药大学,黑龙江 哈尔滨 150040)

暴马子皮为木犀科植物暴马丁香[Syringareticulata(Bl.)Haravar.mandshurica(Maxim.)Hara]的干燥干皮或枝皮[1]。临床用于治疗慢性支气管炎、咳嗽、水肿、哮喘、高血压等病症。现代植物化学和药理学研究表明,暴马子皮主要含有苯丙素类、环烯醚萜类、黄酮类、苯乙醇类和挥发油等成分。生物活性广泛,包括抗菌、抗炎、抗氧化等[2-7]。苯丙素是该植物的主要成分,也是其活性成分之一。为了进一步研究暴马子皮植物的化学成分,阐明其药效物质基础,故对暴马子皮苯丙素类化学成分进行研究,通过多种色谱方法以及波谱、质谱等分析手段从中分离鉴定出14个苯丙素类化合物,现报道如下。

1 仪器与材料

AV-600型超导核磁共振仪(Bruker公司);AB SCIEX TripleTOFTM5600(AB SCIEX公司);制备型高效液相色谱(岛津公司);分析型高效液相色谱(Waters公司);SunFire分析型色谱柱(5 μm,4.6 mm×150 mm)(Waters公司);YMC J′sphere ODS-H80色谱柱(4 μm,10 mm×250 mm)(YMC公司);Sephadex LH-20(Pharmacia公司);柱色谱用大孔树脂(沧州宝恩吸附材料科技有限公司);反相ODS(YMC公司);柱色谱硅胶(200~300目)(青岛海洋化工厂);色谱甲醇(默克公司);柱色谱用化学试剂(天津富宇精细化工有限公司)。

暴马子皮,2019年4月采收于吉林省,经黑龙江中医药大学药用植物学教研室樊锐锋副教授鉴定为木犀科植物暴马丁香(Syringareticulata)的树皮,标本(20190410)保存于黑龙江中医药大学中药化学教研室。

2 提取与分离

取暴马子皮药材15 kg(干燥),用8倍量70%乙醇加热回流提取3次,每次2 h,减压回收溶剂,最终得到提取物2.7 kg,计算其出膏率为18%。取2 kg粗膏用水溶解,水溶液上样AB-8大孔吸附树脂,分别用水(2 BV)、20%乙醇(2 BV)、60%乙醇(2 BV)、95%乙醇(4 BV)以1 BV/h流速进行柱色谱洗脱,收集洗脱液,得到60%乙醇洗脱组分278 g(13.9%)。

60%乙醇部分(278 g)采用硅胶柱色谱分离,以二氯甲烷-甲醇系统(1∶0~0∶1)为流动相进行洗脱,最终得到6个组分即Fr.I~VI。Fr.Ⅱ(54 g)经过硅胶柱色谱,二氯甲烷-甲醇(1∶0~0∶1)洗脱,得到6个组分(Fr.ⅡA~F),Fr.Ⅲ(97 g)经过硅胶柱色谱,二氯甲烷-甲醇(1∶0~0∶1)洗脱,得到7个组分(Fr.ⅢA~G)。Fr.Ⅳ(30 g),Fr.Ⅱ~B(20 g),Fr.Ⅲ~E(23 g)经过ODS柱色谱,甲醇-水(1∶9~1∶0)梯度洗脱。化合物3(3.5 mg)、4(5.8 mg)、5(8.9 mg)、9(2.8 mg)、10(2.8 mg)、11(5.7 mg)、12(6.7 mg)、13(5.1 mg)、14(10.3 mg)从Fr.Ⅳ中利用制备型HPLC分离纯化得到,化合物6(3.4 mg)、7(4.2 mg)从Fr.Ⅱ~B中利用制备型HPLC分离纯化得到,化合物1(6.2 mg)、2(4.6 mg)、8(1.7 mg)从Fr.Ⅲ~E中利用制备型HPLC分离纯化得到。

3 结构鉴定

3.1 化合物1

黄色无定型固体。HR-ESI-MS m/z:521.203 9[M+H]+,分子式为C26H32O11。1H-NMR (CD3OD, 600 MHz) δ:6.98 (1H, d, J=1.9 Hz, H-2),7.13 (1H, d, J=8. 3 Hz, H-5),6.87 (1H, dd, J=8.3, 1.9 Hz, H-6),4.82 (1H, d, J=6.3 Hz, H-7),2.33 (1H, m, H-8),3.83 (1H, overlap, H-9a),3.71 (1H, dd, J=8.3, 6.5 Hz, H-9b),6.71 (1H, overlap, H-2′),6.72 (1H, d, J=8.0 Hz, H-5′),6.66 (1H, dd, J=8.0, 1.3 Hz,H-6′),2.90 (1H, dd, J=13.5, 5.0 Hz, H-7′a),2.52 (1H, dd, J=13.5, 11.0 Hz, H-7′b),2.69 (1H, m, H-8′),3.87 (1H, overlap, H-9′a),3.64 (1H, dd, J=10.9, 7.0 Hz, H-9′b),4.87 (1H, d, J=7.3 Hz, H-1″),3.34~3.50 (4H, m, H-2″-5″),4.00 (1H, dd, J=8.3, 6.7 Hz, H-6″a),3.68 (1H, overlap, H-6″b),3.85 (3H, s,3-OCH3),5.89 (2H, s, O-CH2-O)。13C-NMR (CD3OD, 150 MHz) δ:139.5 (C-1),111.3 (C-2),150.8 (C-3),147.4 (C-4),117.9 (C-5),119.5 (C-6),83.8 (C-7),54.0 (C-8),60.5 (C-9),135.8 (C-1′),109.9 (C-2′),147.4 (C-3′),149.2 (C-4′),109.1 (C-5′),122.6 (C-6′),33.7 (C-7′),43.8 (C-8′),73.5 (C-9′),102.9 (C-1″),74.9 (C-2″),77.8 (C-3″),71.4 (C-4″),78.2 (C-5″),62.5 (C-6″),56.7(3-OCH3),102.1(OCH2O)。上述数据与文献[8]报道基本一致,故鉴定为alashinol B。

3.2 化合物2

黄色无定型固体。HR-ESI-MS m/z:561.197 3[M+Na]+,分子式为C26H34O12。1H-NMR(CD3OD, 600 MHz) δ:7.14 (1H, d, J=1.6 Hz, H-2),6.74 (1H, d, J=8.0 Hz, H-5),6.87 (1H, dd, J=8.0, 1.6 Hz, H-6),4.72 (1H, d, J=7.3 Hz, H-7),2.30 (1H, m, H-8),3.81 (1H, overlap, H-9a),3.74 (1H, dd, J=11.3, 5.5 Hz, H-9b),7.00 (1H, d, J=1.4 Hz, H-2′),7.09 (1H, d, J=8.2 Hz, H-5′),6.84 (1H, dd, J=8.2, 1.4 Hz,H-6′),2.96 (1H, d, J=13.9 Hz, H-7′a),3.03 (1H, d, J=13.9 Hz, H-7′b),3.81 (1H, overlap, H-9′a),3.59 (1H, d, J=9.2 Hz, H-9′b),4.87 (1H, overlap, H-1″),3.33-3.52 (4H, m, H-2″-5″),3.91 (1H, overlap, H-6″a),3.69 (1H, dd, J=11.3, 3.7 Hz, H-6″b),3.85 (3H, s, 3-OCH3),3.86 (3H, s, 3′-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:135.3 (C-1),111.5 (C-2),149.0 (C-3),147.2 (C-4),115.7 (C-5),120.8 (C-6),85.8 (C-7),62.0 (C-8),60.7 (C-9),134.1 (C-1′),116.1 (C-2′),150.3 (C-3′),146.7 (C-4′),117.8 (C-5′),124.0 (C-6′),40.7 (C-7′),82.5 (C-8′),77.9 (C-9′),103.0 (C-1″),74.9 (C-2″),77.8 (C-3″),71.4 (C-4″),78.2 (C-5″),62.5 (C-6″),56.3 (C-3-OCH3),56.7 (C-3′-OCH3)。上述数据与文献[9]报道基本一致,故鉴定为橄榄树脂素-4′-O-β-D-葡萄糖苷。

3.3 化合物3

黄色无定型固体。HR-ESI-MS m/z: 539.215 1[M+H]+,分子式为C26H34O12。1H-NMR(CD3OD, 600 MHz)δ:7.01 (1H, overlap, H-2),6.72 (1H, d, J=8.0 Hz, H-5),6.83 (1H, dd, J=8.0, 1.8 Hz, H-6),4.82 (1H, d, J=5.8 Hz, H-7),4.49 (1H, ddd, J=12.7, 5.8, 1.3 Hz, H-8),3.84 (1H, overlap, H-9a),3.77 (1H, overlap, H-9b),7.01 (1H, overlap, H-2′),6.87 (1H, overlap, H-5′),6.87 (1H, overlap, H-6′),6.58 (1H, d, J=15.9 Hz, H-7′),6.24 (1H, dt, J=15.9, 6.3 Hz, H-8′),4.37 (1H, overlap, H-9′a),4.30 (1H, ddd, J=12.7, 6.7,1.0 Hz, H-9′b),4.35 (1H, d, J=7.8 Hz, H-1″),3.20~3.37 (4H, m, H-2″-5″),3.88 (1H, dd, J=11.9, 2.1 Hz,H-6″a),3.67 (1H, dd, J=11.9, 5.5 Hz, H-6″b),3.80 (3H, s, 3-OCH3),3.79 (3H, s, 3′-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:134.1 (C-1),111.9 (C-2),148.7 (C-3),147.0 (C-4),115.6 (C-5),121.0 (C-6),74.1 (C-7),86.2 (C-8),62.2 (C-9),132.8 (C-1′),111.4 (C-2′),151.9 (C-3′),149.1 (C-4′),118.8 (C-5′),120.8 (C-6′),133.6 (C-7′),125.2 (C-8′),70.8 (C-9′),103.2 (C-1″),75.1 (C-2″),78.0 (C-3″),71.7 (C-4″),78.1 (C-5″),62.8 (C-6″),56.3 (C-3-OCH3),56.5 (C-3′-OCH3)。上述数据与文献[10]报道基本一致,故鉴定为hyuganoside IIIa。

3.4 化合物4

黄色无定型固体。HR-ESI-MS m/z: 539.216 1 [M+H]+,分子式为C26H34O12。1H-NMR(CD3OD, 600 MHz) δ:7.22 (1H, d, J=1.7 Hz, H-2),7.11 (1H, d, J=8.3 Hz, H-5),6.98 (1H, dd, J=8.3, 1.7 Hz, H-6),4.79 (1H, d, J=6.8 Hz, H-7),2.27 (1H, m, H-8),3.74 (1H, dd, J=11.3, 6.0 Hz, H-9b),3.68 (1H, dd, J=11.3, 4.8 Hz, H-9b),6.90 (1H, brs, H-2′),6.72 (1H, brs, H-5′),6.72 (1H, brs, H-6′),2.96 (1H, d, J=14.0 Hz, H-7′a),2.90 (1H, d, J=14.0 Hz, H-7′b),3.83 (1H, overlap, H-9′a),3.62 (1H, d, J=9.2 Hz, H-9′b),4.86(1H, d, J=7.5 Hz, H-1″),3.33~3.50 (5H, m, H-2″-6″),3.86 (3H, s, 3-OCH3),3.84 (3H, s, 3′-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:139.1 (C-1),112.2 (C-2),150.8(C-3),147.4 (C-4),117.6 (C-5),120.5 (C-6),85.6(C-7),62.0 (C-8),60.9 (C-9),130.4 (C-1′),115.2 (C-2′),148.6 (C-3′),146.2(C-4′),115.8 (C-5′),123.8 (C-6′),40.6(C-7′),82.6 (C-8′),78.1(C-9′),102.9 (C-1″),74.9 (C-2″),77.8 (C-3″),71.3 (C-4″),78.2 (C-5″),62.5 (C-6″),56.6(C-3-OCH3),56.3 (C-3′-OCH3)。上述数据与文献[9]报道基本一致,故鉴定为橄榄树脂素-4-O-β-D-葡萄吡喃糖苷。

3.5 化合物5

黄色无定型固体。HR-ESI-MS m/z: 377.162 3 [M+H]+,分子式为C20H24O7。1H-NMR(CD3OD, 600 MHz)δ:6.63 (1H,s, H-2),6.18 (1H, s, H-5),2.60 (1H, d, J=16.7 Hz, H-7a),3.21 (1H, d, J=16.7 Hz, H-7b),3.78 (1H, overlap, H-9a),3.56 (1H, dd, J=11.0,4.1 Hz, H-9b),6.70 (1H, d, J=1.7 Hz, H-2′),6.75 (1H, d, J=8.0 Hz, H-5′),6.66(1H, dd, J=8.0,1.7 Hz,H-6′),4.02 (1H, d, J=11.6 Hz, H-7′),2.03(1H, dt, J=11.6,3.7 Hz,H-8′), 3.58 (1H, d, J=11.0 Hz, H-9′a),3.79 (1H, overlap, H-9′b),3.77 (3H, s, 3-OCH3),3.80 (3H, s, 3′-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:133.5 (C-1),113.9 (C-2),147.5 (C-3),145.3 (C-4),117.3 (C-5),126.4 (C-6),39.9 (C-7),75.0(C-8),69.4 (C-9),138.5 (C-1′),113.9 (C-2′),149.1 (C-3′),146.1(C-4′),116.0 (C-5′),123.6 (C-6′),44.9(C-7′),47.5 (C-8′),60.8 (C-9′),56.4 (C-3-OCH3),56.3 (C-3′-OCH3)。上述数据与文献报道[11]基本一致,故鉴定为(+)-cycloolivil。

3.6 化合物6

黄色无定型固体。HR-ESI-MS m/z: 647.197 2[M+Na]+,分子式为C29H36O15。1H-NMR(CD3OD, 600 MHz)δ:6.69 (1H, d, J=2.0 Hz, H-2),6.67 (1H, d, J=8.0 Hz, H-5),6.56 (1H, dd, J=8.0, 2.0 Hz, H-6),2.79 (2H, m, H-7),4.04 (1H, m, H-8a),3.62 (1H, m, H-8b),7.05 (1H,d, J=2.0 Hz, H-2′),6.77 (1H,d, J=8.2 Hz, H-5′),6.95 (1H, dd, J=8.2,2.0 Hz, H-6′),7.59 (1H, d, J=15.8 Hz, H-7′),6.27 (1H, d, J=15.8 Hz, H-8′),4.37(1H, d, J=7.9 Hz, H-1″),3.37~3.87 (4H, m, H-2″-5″),3.90 (1H, m, H-6″a),3.71 (1H, m, H-6″b),5.18 (1H, d, J=1.4 Hz, H-1‴),3.37~3.87 (4H, m,H-2‴-5‴),1.09 (3H,d, J=6.2 Hz, H-6‴)。13C-NMR (CD3OD, 150 MHz) δ:131.5 (C-1),116.3 (C-2),146.2(C-3),144.7 (C-4),117.1(C-5),121.2 (C-6),36.6 (C-7),72.1 (C-8),127.7 (C-1′),115.2 (C-2′),146.8 (C-3′),149.8(C-4′),116.5 (C-5′),123.2(C-6′),148.0(C-7′),114.7 (C-8′),168.3(C-9′),104.2 (C-1″),76.2 (C-2″),81.6 (C-3″),70.6 (C-4″),76.1 (C-5″),62.4 (C-6″),103.0 (C-1‴),72.4 (C-2‴),72.3 (C-3‴),73.8 (C-4‴),70.4 (C-5‴),18.4 (C-6‴)。上述数据与文献[12]报道基本一致,故鉴定为acteoside。

3.7 化合物7

黄色无定型固体。HR-ESI-MS m/z: 543.188 0[M+Na]+,分子式为C26H32O11。1H-NMR(CD3OD, 600 MHz) δ:7.03 (1H, d, J=1.7 Hz,H-2),7.14 (1H, d, J=8.3 Hz,H-5),6.92 (1H, dd, J=8.3,1.7 Hz,H-6),4.76 (1H, d, J=4.1 Hz,H-7), 3.13(1H, m, H-8), 4.24(1H, m, H-9a), 3.86(1H, overlap, H-9b), 6.94 (1H,d, J=1.7 Hz, H-2′),6.76 (1H,d, J=8.1 Hz, H-5′),6.81 (1H, dd, J=8.1,1.7 Hz, H-6′),4.71 (1H, d, J=4.4 Hz, H-7′),3.13 (1H,m, H-8′),4.24 (1H,m, H-9′a),3.86 (1H,overlap, H-9′b),4.87(1H, d, J=7.4 Hz, H-1″),3.33-3.52 (4H, m, H-2″-5″),3.86 (1H, overlap, H-6″a),3.69 (1H, dd, J=12.0,4.8 Hz, H-6″b),3.87 (3H, s, 3-OCH3),3.85 (3H, s, 3′-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:137.5 (C-1),111.7 (C-2),147.5(C-3),151.0 (C-4),118.1(C-5),119.8 (C-6),87.1(C-7),55.6 (C-8),72.7 (C-9),133.8 (C-1′),111.0 (C-2′),147.3 (C-3′),149.1(C-4′),116.1 (C-5′),120.0(C-6′),87.5 (C-7′),55.4(C-8′),72.7(C-9′),102.9 (C-1″),74.9 (C-2″),77.9 (C-3″),71.4 (C-4″),78.2 (C-5″),62.5 (C-6″),56.8(C-3-OCH3),56.4 (C-3′-OCH3)。上述数据与文献[13]报道基本一致,故鉴定为(+)-pinoresinol-O-β-D-glucopyranoside。

3.8 化合物8

黄色无定型固体。HR-ESI-MS m/z: 371.135 9 [M+H]+,分子式为C17H22O9。1H-NMR(CD3OD, 600 MHz) δ:7.03 (1H,s,H-2),7.03 (1H, s,H-6),7.61 (1H, d, J=15.8 Hz, H-7), 6.76 (1H, dd, J=15.8,7.7 Hz, H-8),9.64(1H, d, J=7.7 Hz, H-9),5.04 (1H,d, J=7.6 Hz, H-1′),3.86 (1H, overlap, H-6′a),3.77 (1H, overlap, H-6′b),3.38~3.80 (4H,m, H-2′-5′),3.90 (3H, s, 3-OCH3),3.90 (3H, s, 5-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:132.0 (C-1),107.8 (C-2),154.7(C-3),138.8 (C-4),154.7(C-5),107.8 (C-6),155.0(C-7),129.2 (C-8),196.0 (C-9),104.7 (C-1′),75.7 (C-2′),77.9 (C-3′),71.4(C-4′),78.5 (C-5′),62.6(C-6′),57.1(C-3-OCH3),57.1(C-5-OCH3)。上述数据与文献[14]报道基本一致,鉴定为sinapaldehydeglucoside。

3.9 化合物9

黄色无定型固体。HR-ESI-MS m/z: 475.182 6[M+H]+,分子式为C21H30O12。1H-NMR(CD3OD, 600 MHz)δ:7.17 (1H,d, J=8.3 Hz,H-5),7.09 (1H,d, J=2.0 Hz,H-2),6.84 (1H, dd, J=8.3,2.0 Hz, H-6),3.34 (2H, m, H-7),5.94 (1H, m,H-8),5.06(1H, m, H-9a),5.02(1H, m, H-9b),4.83(1H,d, J=7.6 Hz, H-1′),3.31~3.51 (4H,m, H-2′-5′),3.85(1H, dd,J=12.1,1.9 Hz, H-6′a),3.71(1H, dd, J=12.1,3.7 Hz, H-6′b),4.81 (1H,d, J=7.5 Hz, H-1″),3.31~3.51 (4H,m, H-2″-5″),3.85(1H, dd,J=12.1,1.9 Hz, H-6″a),3.69 (1H, dd, J=12.1,3.7 Hz, H-6″b)。13C-NMR (CD3OD, 150 MHz) δ:137.4 (C-1),121.0 (C-2),149.2(C-3),147.5 (C-4),121.0(C-5),124.8 (C-6),40.6(C-7),138.8(C-8),116.0 (C-9),104.2 (C-1′),75.1 (C-2′),77.8 (C-3′),71.3(C-4′),78.2 (C-5′),62.4(C-6′),104.3 (C-1″),75.1 (C-2″),77.8 (C-3″),71.3 (C-4″),78.2 (C-5″),62.4 (C-6″)。上述数据与文献[15]报道基本一致,故鉴定为1,2-di-O-β-D-glucopranosyl-4-allylbenzene。

3.10 化合物10

黄色无定型固体。HR-ESI-MS m/z: 505.193 4[M+H]+,分子式为C22H32O13。1H-NMR(CD3OD, 600 MHz)δ:6.81 (1H,d, J=1.5 Hz,H-2),6.60 (1H,d, J=1.5 Hz, H-6),3.33 (1H, overlap, H-7a), 3.19 (1H, m, H-7b),5.04 (1H, m, H-8),5.95 (1H, m,H-9a),5.10 (1H,m, H-9b),4.83(1H,d, J=7.6 Hz, H-1′),3.17~3.54 (4H,m, H-2′-5′),3.77(1H, dd, J=12.1,2.2 Hz, H-6′a),3.69(1H, dd, J=12.1,5.3 Hz, H-6′b),4.90 (1H,d, J=7.7 Hz, H-1″),3.17~3.54 (4H,m, H-2″-5″),3.89 (1H, dd,J=12.0,1.7 Hz, H-6″a),3.71 (1H, dd, J=12.0, 5.2 Hz, H-6″b),3.83 (3H, s, 3-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:138.6 (C-1),111.9 (C-2),152.2(C-3),135.3 (C-4),154.3(C-5),109.1 (C-6),41.2(C-7),138.5 (C-8),116.3(C-9),105.4 (C-1′),75.1 (C-2′),77.6 (C-3′),71.3 (C-4′),78.4(C-5′),62.4(C-6′),103.8(C-1″),75.6 (C-2″),78.0 (C-3″),71.4 (C-4″),78.4 (C-5″),62.5 (C-6″),57.0 (3-OCH3)。上述数据与文献[16]报道基本一致,故鉴定为shashenoside I。

3.11 化合物11

白色针状结晶。HR-ESI-MS m/z: 373.152 0 [M+H]+,分子式为C17H24O9。1H-NMR(CD3OD, 600 MHz)δ:6.75 (1H, s, H-3),6.75 (1H, s, H-5), 6.54 (1H, d, J=15.8, H-7), 6.32 (1H, dt, J=15.8, 5.6 Hz,H-8),4.22 (2H, brd, J=5.6 Hz,H-9),4.87 (1H,d, J=7.6 Hz, H-1′),3.36~3.49 (4H,m, H-2′-5′),3.78 (1H, dd, J=12.0,2.3 Hz,H-6′a),3.66 (1H, dd, J=12.0,5.2 Hz,H-6′b),3.86 (6H, s, 3-OCH3,5-OCH3)。13C-NMR (CD3OD, 150 MHz) δ:135.9 (C-1),154.4 (C-2),105.4(C-3),135.2 (C-4),105.4(C-5),154.4 (C-6),130.0 (C-7),131.3 (C-8),63.6(C-9),105.3 (C-1′),75.7 (C-2′),78.4 (C-3′),71.3 (C-4′),77.8(C-5′),62.6(C-6′),57.0 (3-OCH3),57.0 (5-OCH3)。上述数据与文献[17]报道基本一致,故鉴定为syringin。

3.12 化合物12

黄色无定型固体。HR-ESI-MS m/z: 491.177 4 [M+H]+,分子式为C21H30O13。1H-NMR(CD3OD, 600 MHz) δ:6.44 (1H, d, J=1.7 Hz,H-2),6.66 (1H, d, J=1.7 Hz, H-6),3.25(2H,overlap,H-7),5.92 (1H,m,H-8),5.07 (1H, dd, J=17.0,1.6 Hz,H-9a),5.02 (1H, dd, J=17.0,1.6 Hz,H-9b),4.80(1H,d, J=7.6 Hz, H-1′),3.33~3.53 (4H,m, H-2′-5′),3.89 (1H, dd, J=12.5,1.1 Hz,H-6′a),3.72 (1H, m,H-6′b),4.75(1H,d, J=7.8 Hz, H-1″),3.33~3.53 (4H, m, H-2″-5″),3.80 (1H, dd, J=12.1,2.3 Hz,H-6″a),3.72 (1H, m,H-6b″)。13C-NMR (CD3OD, 150 MHz) δ:139.1(C-1),112.2(C-2),151.9(C-3),134.5(C-4),151.7(C-5),112.2(C-6),41.0(C-7),138.6 (C-8),116.1 (C-9),106.7(C-1′),75.4(C-2′),78.3(C-3′),71.3(C-4′),77.8(C-5′),62.5(C-6′),103.6(C-1″),74.9(C-2″),78.3(C-3″),70.7(C-4″),77.6(C-5″),61.9 (C-6″)。上述数据与文献[18]报道基本一致,故鉴定为3,4,5-trihydroxy-allylbenzene,3-O-β-D-glucopyranosyl-4-O-β-D-glucopyranoside。

3.13 化合物13

黄色粉末。HR-ESI-MS m/z: 181.053 2 [M+H]+,分子式为C9H8O4。1H-NMR(C5D5N, 600 MHz) δ:7.65 (1H, d, J=1.5 Hz, H-2),7.22 (1H, overlap, H-5),7.23 (1H, overlap, H-6),8.13 (1H,d, J=15.8 Hz, H-7),6.83 (1H,d, J=15.8 Hz, H-8)。13C-NMR (C5D5N,150 MHz) δ:127.2 (C-1),115.7 (C-2),147.6 (C-3),149.9 (C-4), 116.8 (C-5),121.7(C-6),145.2 (C-7),116.7 (C-8),169.6 (C-9)。上述数据与文献[19]报道基本一致,鉴定为caffeic acid。

3.14 化合物14

白色针状结晶。HR-ESI-MS m/z: 195.068 3 [M+H]+,分子式为C10H10O4。1H-NMR(C5D5N, 600 MHz) δ: 7.35 (1H, d, J=1.8 Hz, H-2),7.20 (1H, d, J=8.1 Hz, H-5),7.28 (1H, dd,J=8.1, 1.8 Hz, H-6),8.12 (1H, d, J=15.9 Hz, H-7),6.88 (1H, d, J=15.9 Hz,H-8),3.77 (3H, s, 3-OCH3)。13C-NMR (C5D5N, 150 MHz) δ:126.8 (C-1),111.4 (C-2),150.7 (C-3),144.9 (C-4),116.8 (C-5),117.1 (C-6),148.9 (C-7),116.8 (C-8),169.6(C-9),55.8(3-OCH3)。上述数据与文献报道[20]基本一致,故鉴定为ferulic acid。

4 结果与讨论

本研究对暴马子皮60%乙醇洗脱层展开了较为系统的化学成分分析,共得到14个苯丙素类化合物。其中化合物3、9、10、12首次从木犀科中分离得到,化合物5、6为首次从丁香属中分离得到,化合物1为首次从该植物中分离得到。暴马子皮中含有丰富的苯丙素类、环烯醚萜类和苯乙醇类等化学成分,且一些苯丙素类化合物具有抗氧化,抗炎等生物活性。本研究丰富了暴马子皮的化学成分,为进一步阐明药效物质基础,并继续深入开展暴马子皮的药效作用机制研究奠定了基础。为今后暴马子皮资源的深入开发和利用提供了理论依据。扩展了有关木犀科及丁香属植物化学特征性成分的知识。

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