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霸王鞭化学成分的研究



全 文 :第29卷第1期 齐 齐 哈 尔 大 学 学 报 Vol.29,No.1
2013 年 1 月 Journal of Qiqihar University Jan.,2013
霸王鞭化学成分的研究
王虹,赵明,张树军
(齐齐哈尔大学 化学与化学工程学院,黑龙江 齐齐哈尔 161006)

摘要:采用硅胶柱色谱和高效液相色谱等分离方法对霸王鞭乙醇提取液正己烷萃取物化学成分进行分离纯化,得
到了 6个单体化合物。通过理化性质及波谱数据分析进行结构鉴定的结果,确定它们的结构分别为:大戟二烯醇
(1)、大戟醇(2)、β-谷甾醇(3)、豆甾醇(4)、taraxetol(5)东莨菪素(6),其中,化合物 1、2、5、6 为首
次从该植物中分离得到。
关键词:霸王鞭;三萜;甾体
中图分类号:R931.5 文献标志码:A 文章编号:1007-984X(2013)01-0073-03

霸王鞭(Euphorbia antiquorum L.)系大戟科大戟属多年生肉质灌木,全株入药,具有散瘀消炎、清热
解毒的功效[1]。由于同为大戟科植物的狼毒大戟以及巴豆籽中含有的巴豆烷型二萜类化合物 Prostratin 对艾
滋病表现出很好的疗效[2],推测霸王鞭中可能也含有该类成分,为进一步开发 Prostratin 及其衍生物的资源,
本文对霸王鞭乙醇提取液正己烷萃取物的化学成分进行了研究,从中分离鉴定了 6个单体化合物,分别鉴
定为大戟二烯醇(1)、大戟醇(2)、β-谷甾醇(3)、豆甾醇(4)、taraxetol(5)、东莨菪素(6),
其中,化合物 1、2、5、6 为首次从该植物中分离得到。
1 实验部分
1.1 仪器和材料
Bruker AM-400型超导核磁共振波谱仪,TMS为内标;HITACHI L-7100 高效液相色谱仪(HITACHI
L-3350视差折光检测器,GL Inertsil PREP-ODS  10×250 mm 不锈钢半制备柱,日本日立公司)。层析柱
硅胶(48~75 μm)和薄层色谱硅胶GF254为青岛海洋化工有限公司产品。
实验用药材为本研究室栽培品,采于 2010 年 10 月 21 日,经鉴定为 E. antiquorum。
1.2 提取与分离
将干燥的霸王鞭373.0 g,用无水乙醇2.7 L浸泡3 d,滤过,重复5次,合并浸泡液,浓缩,加水约300 mL
混悬,依次用石油醚,乙酸乙酯和正丁醇萃取,浓缩得到正己烷萃取物14.8 g,乙酸乙酯萃取物6.0 g,正丁
醇萃取物3.3 g。
将正己烷萃取物(14.8 g)用硅胶柱色谱分离,依次用正己烷-乙酸乙酯(9 1,7 3,3 7)、乙酸乙
酯、乙酸乙酯-甲醇(8 2)进行洗脱,TLC 跟踪分析,合并相同馏分得到12个部分。将各部分经多次硅
胶柱色谱和高效液相色谱进一步分离纯化得化合物1(703.5 mg)、2(7.7 mg)、3(23.1 mg)、4(16.0 mg)、
5(35.1 mg)、6(9.7 mg)。
2 结果与讨论
2.1 结构鉴定
化合物1,无色针状晶体(甲醇),m.p. 115~117℃,1H NMR(400 MHz, CDCl3)δ 1.68(3H, s),1.60(3H,
s),1.00(3H, s),0.95(3H, s),0.87(3H, s),0.80(3H, s),0.76,3.24(1H, dd, J = 11.6, 4.6 Hz, H-3),
5.10(1H, t, J = 6.6 Hz, H-24);13C NMR(100 MHz, CDCl3)δ 35.2(C-1),28.0(C-2),78.9(C-3),38.9 (C-4),
50.9(C-5),19.0(C-6), 27.8(C-7),134.0(C-8),133.5(C-9),37.2(C-10),21.5(C-11),30.9

收稿日期:2012-07-20
作者简介:王虹(1987-),女,浙江人,在读硕士,主要从事天然有机物的分离、结构鉴定等方面的研究,wanghong19870201@163.com。

·74· 齐 齐 哈 尔 大 学 学 报 2013 年
(C-12),44.0(C-13),50.0(C-14),29.7(C-15),27.9(C-16),49.9(C-17),15.6(C-18),20.1(C-19),
35.4(C-20),18.9(C-21),36.0(C-22),25.1(C-23),125.2(C-24),130.8(C-25),17.6(C-26),
25.9(C-27),28.1(C-28),15.5(C-29),24.6(C-30)。该结果与文献[3]一致,鉴定为大戟二烯醇。
化合物2,无色针状晶体(甲醇),m.p. 123~126℃,1H NMR(400 MHz, CDCl3)δ 1.00(3H, s),0.96(3H,s),
0.88(3H, s),0.80(3H, s),0.76(3H, s),3.24(1H, dd, J = 11.6, 4.6 Hz, H-3),4.66(1H, s, H-24),4.72
(1H, s, H-24),2.24(1H, d, J = 7.0 Hz, H-25),1.02(1H, d, J = 6.8 Hz. H-26),1.04 (1H, d, J = 7.0 Hz,
H-27);13C NMR(100 MHz, CDCl3)δ 35.3(C-1),27.7(C-2),79.0(C-3),38.9(C-4),51.0(C-5),
19.0(C-6),28.0(C-7),133.6(C-8),134.1(C-9),37.3(C-10),21.5(C-11),28.1(C-12),44.2
(C-13),50.1(C-14),31.0(C-15),29.8(C-16),49.7(C-17),15.5(C-18),20.2(C-19),35.9(C-20),
18.9(C-21),35.5(C-22),24.8(C-23),125.3(C-24),130.9(C-25),17.7(C-26),25.7(C-27),
24.5(C-28),28.1(C-29),15.7(C-30)。该结果与文献[4]一致,鉴定为大戟醇。
化合物3,无色透明针状晶体(EtOAc),m.p.135.0 ~137.0℃, 1H NMR(400 MHz, CDCl3)δ 5.35(1H, dd,
J = 5.0, 2.0 Hz),3.52(1H, tt, J = 8.5, 4.5 Hz),0.92 (3H, d, J = 6.8 Hz), 0.91 (3H, d, J = 6.8 Hz),0.84(3H, t, J =
7.3 Hz),0.83(3H, d, J = 6.8 Hz),0.68(3H, s),1.01(3H, s)。13C NMR(100 MHz, CDCl3)δ 140.7, 121.7, 71.8,
56.8, 56.0, 50.1, 45.8, 42.3, 39.8, 39.3, 37.2, 36.5, 36.1, 33.9, 31.9, 31.6, 29.1, 28.2, 26.0, 24.3, 23.1, 21.1, 19.8,
19.4, 19.0, 18.8, 12.0, 11.9。与β-谷甾醇标准品谱图一致,故鉴定为β-谷甾醇。
化合物4,白色晶体(EtOAc),m.p.166.2~168.0℃,1H NMR(400 MHz, CDCl3)δ 5.34(1H, d, J = 4.8 Hz,
H-6),5.30(1H, dd, J = 16.0, 6.4 Hz, H-22),5.13(1H, dd, J = 16.0, 6.4 Hz, H-23),3.53(1H, m, H-3),2.03
(2H, t, J = 7.2 Hz, H-4),2.04(1H, m, H-24),1.30(2H, m, H-28),1.00(3H, s, H-19),0.97(3H, d, J = 4.3
Hz, H-20),0.86(6H, t, J = 6.4 Hz, H-26, 27),0.68(3H, s)。13C NMR(100 MHz, CDCl3)δ 37.2(C-1),31.5
(C-2),71.9 (C-3),42.2(C-4),140.6(C-5),121.7(C-6),31.8(C-7, C-8),50.1(C-9),37.3(C-10),
21.1(C-11),40.5(C-12),42.2(C-13),56.7(C-14),24.3(C-15),29.8(C-16),55.9(C-17),12.0
(C-18),19.3(C-19),42.1(C-20),21.2(C-21),138.4(C-22),129.2(C-23),51.2(C-24),31.8
(C-25),21.0(C-26),18.9(C-27),25.4(C-28),12.2(C-29)。该结果与文献[5]基本一致,故鉴定为
豆甾醇。
化合物5,白色针状晶体(EtOAc),m.p. 282~284℃,1H NMR(400 MHz, CDCl3)δ 5.45(1H, dd, J = 3.1,
7.9 Hz, H-15),3.12(1H, m, H-3),1.01(3H, s),0.91(3H, s),0.90(3H, s),0.88(3H, s),0.85(3H, s),
0.75(3H, s),0.73(3H, s);13C NMR(100 MHz, CDCl3)δ 37.9(C-1),27.2(C-2),79.0(C-3),38.9(C-4),
55.5(C-5),18.8(C-6),35.0(C-7),38.6(C-8),48.7(C-9),37.9(C-10),17.5(C-11),35.8(C-12),
37.6(C-13),157.7(C-14),116.6(C-15),36.6(C-16),37.7(C-17),49.1(C-18),41.2(C-19),
28.8(C-20),33.6(C-21),33.0(C-22),27.9(C-23),15,9(C-24, C-25),29.8(C-26),26.0(C-27),
29.9(C-28),33.3(C-29),21.3(C-30)。该结果与文献[6]一致,故鉴定为taraxetol。
化合物6,无色针晶(CHCl3),m.p.149.5~151.5℃,1H NMR(400 MHz, CDCl3)δ 3.93(3H, s, OCH3),
6.14(1H, s, -OH),6.27(1H, d, J = 9.2 Hz, H-3),6.85(1H, s, H-8),6.92(1H, s, H-5),7.59(1H, d, J = 9.2
Hz, H-4)。13C NMR(100 MHz, CDCl3)δ 161.4(C-2),152.0(C-9),149.6(C-7),143.9(C-6),143.3
(C-4),113.4(C-3),111.4(C-10),107.4(C-5),103.1(C-8),56.4(OCH3)。以上数据与文献[7]一
致, 鉴定为东莨菪素。
2.2 讨论
由于研究霸王鞭化学成分的主要目的是寻找巴豆烷型二萜类化合物,依据前期对狼毒大戟化学成分研
究的结果[8]可知,巴豆烷型二萜类化合物主要存在于正己烷提取物中,因此本文主要对霸王鞭醇提液的正
己烷萃取物化学成分进行了研究。结果未发现相应的二萜类成分,体现同科植物化学成分的差异性。关于
霸王鞭中是否存在巴豆烷型二萜类成分,有待进一步研究。
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Chemical Constituents from the Euphorbia antiquorum L.
WANG Hong,ZHAO Ming,ZHANG Shu-jun
(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)

Abstract:The chemical constituents of Euphorbia antiquorum L.were studied by the methods of column
chromatography and HPLC. Six compounds were isolated from the ethanol extracts of Euphorbia antiquorum and the
structures were elucidated on the basis of spectral analysis and physiochemical properties. They were identified as
euphol (1), euphorbol (2), β-sitosterol (3), stigmasterol (4), taraxetol (5), and 6,7,8-trimethoxy coumarin (6). The
compounds 1,2,5,and 6 were isolated from this plant for the first time.
Key words:Euphorbia antiquorum L.;triterpenoids;steroid
(上接第72页)
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Chemical constituents from the leaves of Rhododendron dauricum L.
ZHANG Dong-feng,SUN Bao-xin,ZHANG Shu-jun
(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)

Abstract:The chemical constituents of the leaves of Rhododendron dauricum L. were studied by the methods of
column chromatography and HPLC. As the results, six compounds were isolated and their structures were elucidated
as germacrone (1), grifolic acid (2), β-sitosterol (3), octacosand (4), daucosterol (5), and oleanolic acid (6) by means
of spectroscopic analysis. Compounds 4 and 5 were isolated from this plant for the first time.
Key words:Rhododendron dauricum L.;germacrone;grifolic acid