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Study on terpenoids from aerial parts of Matteuccia struthiopteris

荚果蕨地上部分萜类化学成分研究



全 文 :中草药 Chinese Traditional and Herbal Drugs 第 46卷 第 12期 2015年 6月

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荚果蕨地上部分萜类化学成分研究
朱玲娟 1, 3,燕 菲 1, 3,陈金鹏 1, 3,张 楠 1, 3,张 雪 1, 2, 3*,姚新生 1, 3, 4
1. 沈阳药科大学中药学院,辽宁 沈阳 110016
2. 中国医学科学院 北京协和医学院药物研究所 天然药物活性物质与功能国家重点实验室,北京 100050
3. 沈阳药科大学 基于靶点的药物设计与研究教育部重点实验室,辽宁 沈阳 110016
4. 暨南大学中药及天然药物研究所,广东 广州 510632
摘 要:目的 研究荚果蕨 Matteuccia struthiopteris 地上部分的化学成分。方法 采用 Diaion HP20、硅胶、ODS、Sephadex
LH-20 柱色谱以及制备高效液相色谱等多种色谱学方法进行分离纯化,并根据理化性质和现代波谱学技术鉴定化合物的结
构。结果 从荚果蕨地上部分 60%乙醇提取物中分离并鉴定 12 个化合物,其中 10 个为 megastigmane 型降倍半萜类化合物,
分别鉴定为 4,7-megastigmadiene-3,9-diol(1)、blumenol A(2)、去氢催吐萝芙木醇(3)、bridelionol F(4)、bridelionol B(5)、
3,5,6-trihydroxy-7-megastigmen-9-one(6)、5β,6α-dihydroxy-3β-(β-D-glucoyranosyloxy)-7-megastigmen-9-one(7)、byzantionoside
A(8)、dearabinosyl pneumonanthoside(9)、3-hydroxy-β-damascone glucoside(10),另外 2 个为倍半萜类化合物,分别鉴定
为反枝苋苷 IV(11)、icariside C3(12)。结论 化合物 1~12均为首次从荚果蕨属植物中分离得到。
关键词:荚果蕨;megastigmane 型降倍半萜类;倍半萜;去氢催吐萝芙木醇;反枝苋苷 IV
中图分类号:R284.1 文献标志码:A 文章编号:0253 - 2670(2015)12 - 1737 - 05
DOI: 10.7501/j.issn.0253-2670.2015.12.005
Study on terpenoids from aerial parts of Matteuccia struthiopteris
ZHU Ling-juan1, 3, YAN Fei1, 3, CHEN Jin-peng1, 3, ZHANG Nan1, 3, ZHANG Xue1, 2, 3, YAO Xin-sheng1, 3, 4
1. College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
2. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
3. Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University,
Shenyang 110016, China
4. Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
Abstract: Objective To study the chemical constituents in 60% ethanol extract from the aerial parts of Matteuccia struthiopteris.
Methods Diaion HP20 macroporous adsorption resin column chromatography (CC), silica gel CC, ODS CC, Sephadex LH-20 CC,
and PHPLC were used for the isolation and purification. Structures were identified on the basis of chemical evidences and
spectroscopic analyses. Results Twelve compounds were isolated and identified as 4,7-megastigmadiene-3,9-diol (1), blumenol A
(2), dehydrovomifoliol (3), bridelionol F (4), bridelionol B (5), 3,5,6-trihydroxy-7-megastigmen-9-one (6), 5β,6α-dihydroxy-3β-(β-D-
glucoyranosyloxy)-7-megastigmen-9-one (7), byzantionoside A (8), dearabinosyl pneumonanthoside (9), 3-hydroxy-β-damascone
glucoside (10), amarantholidoside IV (11), and icariside C3 (12). Conclusion Compounds 1—12 are reported from the plants of
Matteuccia Todaro for the first time.
Key words: Matteuccia struthiopteris (L.) Todaro; megastigmane; sesquiterpenoids; dehydrovomifoliol; amarantholidoside IV

荚果蕨 Matteuccia struthiopteris (L.) Todaro 为
球子蕨科(Onocleaceae)荚果蕨属 Matteuccia Todaro
多年生草本植物,又名小叶贯众、黄瓜香[1]。荚果
蕨带叶柄基的根茎入药称为“荚果蕨贯众”,味苦、
性微寒,民间用于预防流行性感冒、流行性乙型脑
炎、流行性腮腺炎等病毒感染性疾病[2]。荚果蕨卷

收稿日期:2015-03-05
基金项目:天然药物活性物质与功能国家重点实验室开放课题基金(GTZK201304)
作者简介:朱玲娟(1986—),浙江嘉善人,讲师,博士,从事天然药物及中药复方的药效物质基础研究。E-mail: zhulingjuanadele@163.com
*通信作者 张 雪(1979—),女,辽宁沈阳人,副教授,博士,从事中药和天然药物活性成分及质量控制研究。
Tel: (024)23993994 E-mail: syzxalice@163.com
中草药 Chinese Traditional and Herbal Drugs 第 46卷 第 12期 2015年 6月

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曲未展的嫩叶散发出诱人的黄瓜清香味,是我国东
北地区百姓喜食的山野菜,在日本、加拿大、美国
东北部等地亦被广泛栽种[3-5]。迄今为止,对荚果蕨
化学成分和生物活性的研究多集中于根茎部分[6-7],
对其地上部分的研究报道很少。在对荚果蕨地上部
分的化学成分和生物活性进行研究的过程中,通过
多种色谱学方法以及波谱学鉴定手段,从中分离并
鉴定了 12 个萜类化合物,包括 10 个 megastigmane
型降倍半萜类化合物(1~10)和 2 个倍半萜类化合
物(11、12),分别为 4,7-megastigmadiene-3,9-diol
( 1)、 blumenol A ( 2)、去氢催吐萝芙木醇
(dehydrovomifoliol,3)、bridelionol F(4)、bridelionol
B(5)、3,5,6-trihydroxy-7-megastigmen-9-one(6)、
5β,6α-dihydroxy-3β-(β-D-glucoyranosyloxy)-7-mega-
stigmen-9-one ( 7)、 byzantionoside A ( 8)、
dearabinosyl pneumonanthoside(9)、3-hydroxy-β-
damascone glucoside(10)、反枝苋苷 IV(amaran-
tholidoside IV,11)、icariside C3(12)。所有化合物
均为首次从荚果蕨属植物中分离得到。
1 仪器与材料
Bruker esquire 2000 型低分辨质谱仪;Bruker
AVANCE-400型和Bruker AVANCE-600型超导核磁
共振仪(TMS 为内标);分析用高效液相色谱仪
[G1311A HPLC pump 泵,G1315D DAD 检测器,
C18 色谱柱(250 mm×4.6 mm,5 μm),Phenomenex
Gemini];制备用高效液相色谱仪 [Shimadzu LC-6A
泵,SPD-20A 检测器,C18色谱柱(250 mm×10 mm,
5 μm),Phenomenex Gemini]。TLC 用硅胶 GF254、
硅胶 G 及柱色谱硅胶(青岛海洋化工有限公司)。
大孔树脂 Diaion HP20 填料(日本 Mitsubishi
Chemical 公司),反相 ODS 填料(日本 YMC 公司),
Sephadex LH-20 填料(瑞典 Amersham Biosciences
公司),色谱甲醇(山东禹王实业有限公司化工分公
司、天津市康科德科技有限公司以及美国 Sigma-
Aldrich 公司产品),分析纯化学试剂(天津大茂化
学试剂厂)。
药材于 2011 年 9 月采自辽宁草河口,经沈阳药
科大学中药学院路金才教授鉴定为荚果蕨
Matteuccia struthiopteris (L.) Todaro 的地上部分,标
本保存于沈阳药科大学中药学院。
2 提取与分离
荚果蕨地上部分 8.8 kg,用 60%乙醇(70 L)
浸泡 12 h,加热回流提取 2 次,每次 2 h,合并提取
液,减压回收得总浸膏 800 g。将其混悬于适量水中,
采用 Diaion HP20 大孔吸附树脂柱色谱分离,乙醇-
水梯度洗脱。其中 30%乙醇洗脱部位(45.0 g)经
过 ODS 柱色谱分离,30%甲醇-水洗脱部分经过硅
胶柱色谱分离,其中二氯甲烷-甲醇(95∶5)洗脱
部分经反复制备 HPLC(乙腈-水 13∶87),得到化
合物 5(34 mg)。50%乙醇洗脱部位(18.3 g)采用
硅胶柱色谱分离,二氯甲烷-甲醇梯度洗脱,得到
10 个部分 Fr. 1~10。Fr. 1 经 ODS 柱色谱以及制备
HPLC(甲醇-水 30∶70),得到化合物 3(72 mg)
和 6(18 mg);Fr. 2 经过 ODS 柱色谱以及制备 TLC
(氯仿-甲醇 9∶1),得到化合物 1(9 mg);Fr. 3 经
过 ODS 柱色谱以及制备 HPLC(甲醇-水 20∶80),
得到化合物 2(24 mg);Fr. 5 经过 ODS 柱色谱以及
制备型 HPLC(甲醇-水 20∶80),得到化合物 4(5
mg);Fr. 6 经过 ODS 柱色谱以及制备型 HPLC(甲
醇-水 30∶70),得到化合物 7(12 mg)、8(9 mg)、
9(3 mg)、10(3 mg)、11(12 mg)和 12(6 mg)。
3 结构鉴定
化合物 1:白色无定形粉末。ESI-MS m/z: 233
[M+Na]+。1H-NMR (400 MHz, CDCl3) δ: 1.34 (1H,
dd, J = 12.8, 9.6 Hz, H-2a), 1.27 (1H, overlap, H-2b),
4.20 (1H, m, H-3), 5.46 (1H, brs, H-4), 2.06 (1H, d,
J = 8.8 Hz, H-6), 5.47 (1H, dd, J = 15.2, 8.8 Hz, H-7),
5.55 (1H, dd, J = 15.2, 6.0 Hz, H-8), 4.30 (1H, m,
H-9), 1.26 (3H, d, J = 6.4 Hz, H-10), 0.92 (3H, s,
H-11), 0.85 (3H, s, H-12), 1.62 (3H, brs, H-13);
13C-NMR (100 MHz, CDCl3) δ: 34.3 (C-1), 40.8
(C-2), 66.7 (C-3), 124.8 (C-4), 137.5 (C-5), 54.0
(C-6), 130.2 (C-7), 136.4 (C-8), 68.7 (C-9), 23.6
(C-10), 29.1 (C-11), 27.0 (C-12), 22.4 (C-13)。以上数
据与文献报道基本一致[8],故鉴定化合物 1 为 4,7-
megastigmadiene-3,9-diol。
化合物 2:淡黄色油状物。ESI-MS m/z: 471
[2M+Na]+。1H-NMR (400 MHz, DMSO-d6) δ: 2.35
(1H, d, J = 16.8 Hz, H-2a), 2.06 (1H, d, J = 16.8 Hz,
H-2b), 5.78 (1H, brs, H-4), 5.64 (1H, d, J = 15.6 Hz,
H-7), 5.70 (1H, dd, J = 15.6, 4.4 Hz, H-8), 4.18 (1H,
m, H-9), 1.11 (3H, d, J = 6.4 Hz, H-10), 0.91 (3H, s,
H-11), 0.93 (3H, s, H-12), 1.81 (3H, brs, H-13);
13C-NMR (100 MHz, DMSO-d6) δ: 40.9 (C-1), 49.4
(C-2), 197.3 (C-3), 125.4 (C-4), 164.3 (C-5), 77.8
(C-6), 135.9 (C-7), 127.9 (C-8), 66.1 (C-9), 24.0
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(C-10), 23.0 (C-11), 23.9 (C-12), 18.9 (C-13)。以上数
据与文献报道基本一致 [9],故鉴定化合物 2 为
blumenol A。
化合物 3:淡黄色油状物。ESI-MS m/z: 245 [M+
Na]+。1H-NMR (400 MHz, CD3OD) δ: 2.60 (1H, d, J =
17.2 Hz, H-2a), 2.27 (1H, d, J = 17.2 Hz, H-2b), 5.93
(1H, brs, H-4), 7.00 (1H, d, J = 16.0 Hz, H-7), 6.43
(1H, d, J = 16.0 Hz, H-8), 2.31 (3H, s, H-10), 1.06
(3H, s, H-11), 1.02 (3H, s, H-12), 1.90 (3H, s, H-13);
13C-NMR (100 MHz, CD3OD) δ: 42.6 (C-1), 50.5
(C-2), 200.2 (C-3), 128.0 (C-4), 164.5 (C-5), 79.9
(C-6), 148.3 (C-7), 131.7 (C-8), 200.6 (C-9), 27.7
(C-10), 23.5 (C-11), 24.7 (C-12), 19.2 (C-13)。以上数
据与文献报道基本一致[10],故鉴定化合物 3为去氢
催吐萝芙木醇。
化合物 4:白色无定形粉末。ESI-MS m/z: 249
[M+Na]+。1H-NMR (400 MHz, CD3OD) δ: 1.78 (1H,
t, J = 12.4 Hz, H-2a), 1.44 (1H, ddd, J = 12.4, 3.6, 1.2
Hz, H-2b), 3.76 (1H, dt, J = 12.4, 3.6 Hz, H-3), 3.84
(1H, d, J = 3.6 Hz, H-4), 6.03 (1H, dd, J = 16.0, 1.0
Hz, H-7), 5.52 (1H, dd, J = 16.0, 6.4 Hz, H-8), 4.30
(1H, qd, J = 6.4, 1.0 Hz, H-9), 1.27 (3H, d, J = 6.4 Hz,
H-10), 1.07 (3H, s, H-11), 1.04 (3H, s, H-12), 1.83
(3H, brs, H-13);13C-NMR (100 MHz, CD3OD) δ: 37.7
(C-1), 41.7 (C-2), 67.9 (C-3), 72.6 (C-4), 128.9 (C-5),
142.4 (C-6), 126.8 (C-7), 140.5 (C-8), 69.5 (C-9), 23.8
(C-10), 27.7 (C-11), 30.3 (C-12), 19.8 (C-13)。以上数
据与文献报道基本一致 [11],故鉴定化合物 4 为
bridelionol F。
化合物 5:无色油状物。ESI-MS m/z: 267 [M+
Na]+。1H-NMR (400 MHz, CD3OD) δ: 1.63 (1H, t, J =
12.0 Hz, H-2a), 1.45 (1H, ddd, J = 12.0, 4.4, 2.4 Hz,
H-2b), 4.05 (1H, m, H-3), 1.78 (1H, m, H-4a), 1.74
(1H, t, J = 12.4 Hz, H-4b), 6.06 (1H, d, J = 16.0 Hz,
H-7), 5.78 (1H, dd, J = 16.0, 6.4 Hz, H-8), 4.34 (1H,
q, J = 6.4 Hz, H-9), 1.27 (3H, d, J = 6.4 Hz, H-10),
1.14 (3H, s, H-11), 0.84 (3H, s, H-12), 1.20 (3H, s,
H-13);13C-NMR (100 MHz, CD3OD) δ: 40.6 (C-1),
46.4 (C-2), 65.2 (C-3), 45.7 (C-4), 77.8 (C-5), 78.9
(C-6), 131.1 (C-7), 136.1 (C-8), 69.5 (C-9), 24.2
(C-10), 26.2 (C-11), 27.1 (C-12), 27.5 (C-13)。以上数
据与文献报道基本一致 [11],故鉴定化合物 5 为
bridelionol B。
化合物 6:淡黄色油状物。ESI-MS m/z: 471 [2M+
Na]+。1H-NMR (400 MHz, CD3OD) δ: 1.58 (1H, m,
H-2a), 1.27 (1H, dd, J = 12.4, 10.8 Hz, H-2b), 3.77
(1H, m, H-3), 2.31 (1H, m, H-4a), 1.66 (1H, dd, J =
14.4, 9.2 Hz, H-4b), 7.17 (1H, d, J = 15.6 Hz, H-7),
6.18 (1H, d, J = 15.6 Hz, H-8), 2.29 (3H, s, H-10),
1.18 (3H, s, H-11), 0.96 (3H, s, H-12), 1.19 (3H, s,
H-13);13C-NMR (100 MHz, CD3OD) δ: 34.2 (C-1),
45.7 (C-2), 62.5 (C-3), 39.4 (C-4), 66.8 (C-5), 68.9
(C-6), 143.4 (C-7), 131.9 (C-8), 198.3 (C-9), 23.3
(C-10), 27.8 (C-11), 25.5 (C-12), 18.1 (C-13)。以上数
据与文献报道基本一致[12],故鉴定化合物 6为 3,5,6-
trihydroxy-7-megastigmen-9-one。
化合物 7:淡黄色固体。ESI-MS m/z: 409 [M+
Na-H2O]+。1H-NMR (400 MHz, CD3OD) δ: 1.79
(1H, ddd, J = 13.2, 3.2, 1.2 Hz, H-2a), 1.46 (1H, dd,
J = 13.2, 10.0 Hz, H-2b), 3.96 (1H, m, H-3), 2.46 (1H,
ddd, J = 14.8, 4.8, 1.2 Hz, H-4a), 1.86 (1H, dd, J =
14.8, 8.4 Hz, H-4b), 7.22 (1H, d, J = 15.6 Hz, H-7),
6.23 (1H, d, J = 15.6 Hz, H-8), 2.34 (3H, s, H-10),
1.01 (3H, s, H-11), 1.26 (3H, s, H-12), 1.24 (3H, s,
H-13), 4.39 (1H, d, J = 8.0 Hz, H-1′), 3.18 (1H, m,
H-2′), 3.41 (1H, m, H-3′), 3.35 (1H, m, H-4′), 3.33
(1H, m, H-5′), 3.90 (1H, dd, J = 12.0, 1.6 Hz, H-6′a),
3.72 (1H, dd, J = 12.0, 5.2 Hz, H-6′b);13C-NMR (100
MHz, CD3OD) δ: 36.0 (C-1), 45.2 (C-2), 72.8 (C-3),
38.2 (C-4), 68.3 (C-5), 71.2 (C-6), 145.2 (C-7), 133.8
(C-8), 200.2 (C-9), 27.5 (C-10), 25.5 (C-11), 29.4
(C-12), 20.2 (C-13), 103.0 (C-1′), 75.1 (C-2′), 77.8
(C-3′), 71.7 (C-4′), 78.1 (C-5′), 62.7 (C-6′)。以上数据
与文献报道基本一致[13],故鉴定化合物 7为 5β,6α-
dihydroxy-3β-(β-D-glucoyranosyloxy)-7-megastigmen-
9-one。
化合物 8:淡黄色固体。ESI-MS m/z: 393 [M+
Na]+。1H-NMR (400 MHz, CD3OD) δ: 1.87 (1H, dd,
J = 13.6, 5.6 Hz, H-2a), 1.62 (1H, dd, J = 13.6, 6.0 Hz,
H-2b), 4.39 (1H, m, H-3), 5.78 (1H, d, J = 1.6 Hz,
H-4), 2.61 (1H, d, J = 10.0 Hz, H-6), 6.71 (1H, dd, J =
16.0, 10.0 Hz, H-7), 6.16 (1H, d, J = 16.0 Hz, H-8),
2.30 (3H, s, H-10), 0.95 (3H, s, H-11), 1.08 (3H, s,
H-12), 1.67 (3H, s, H-13), 4.44 (1H, d, J = 7.6 Hz,
H-1′), 3.20 (1H, m, H-2′), 3.40 (1H, m, H-3′), 3.34
(1H, m, H-4′), 3.32 (1H, m, H-5′), 3.92 (1H, m,
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H-6′a), 3.71 (1H, dd, J = 12.0, 5.2 Hz, H-6′b);
13C-NMR (100 MHz, CD3OD) δ: 34.6 (C-1), 40.8
(C-2), 74.1 (C-3), 126.0 (C-4), 136.8 (C-5), 55.9
(C-6), 149.8 (C-7), 134.5 (C-8), 200.9 (C-9), 27.2
(C-10), 29.7 (C-11), 25.4 (C-12), 22.9 (C-13), 103.2
(C-1′), 75.2 (C-2′), 78.0 (C-3′), 71.8 (C-4′), 78.3 (C-5′),
62.9 (C-6′)。以上数据与文献报道基本一致[14],故鉴
定化合物 8为 byzantionoside A。
化合物 9:淡黄色固体。ESI-MS m/z: 393 [M+
Na]+。1H-NMR (600 MHz, CD3OD) δ: 2.44 (1H, d, J =
16.8 Hz, H-2a), 2.05 (1H, d, J = 16.8 Hz, H-2b), 5.88
(1H, brs, H-4), 2.68 (1H, d, J = 9.0 Hz, H-6), 5.64
(1H, dd, J = 15.6, 9.0 Hz, H-7), 5.77 (1H, dd, J = 15.6,
6.6 Hz, H-8), 4.40 (1H, m, H-9), 1.29 (3H, d, J = 6.6
Hz, H-10), 1.03 (3H, s, H-11), 1.01 (3H, s, H-12), 1.94
(3H, brs, H-13), 4.35 (1H, d, J = 7.8 Hz, H-1′), 3.17
(1H, m, H-2′), 3.33 (1H, m, H-3′), 3.28 (1H, m, H-4′),
3.21 (1H, m, H-5′), 3.82 (1H, dd, J = 12.0, 2.4 Hz,
H-6′a), 3.66 (1H, dd, J = 12.0, 5.4 Hz, H-6′b);
13C-NMR (150 MHz, CD3OD) δ: 37.1 (C-1), 48.3
(C-2), 202.0 (C-3), 126.1 (C-4), 165.9 (C-5), 56.8
(C-6), 128.8 (C-7), 138.2 (C-8), 77.0 (C-9), 21.0
(C-10), 27.6 (C-11), 28.1 (C-12), 23.8 (C-13), 102.5
(C-1′), 75.3 (C-2′), 78.1 (C-3′), 71.5 (C-4′), 78.0 (C-
5′), 62.7 (C-6′)。以上数据与文献报道基本一致[15],
故鉴定化合物 9为 dearabinosyl pneumonanthoside。
化合物 10:淡黄色固体。ESI-MS m/z: 393 [M+
Na]+。1H-NMR (600 MHz, CD3OD) δ: 1.88 (1H, ddd,
J = 12.0, 3.6, 1.2 Hz, H-2a), 1.60 (1H, m, H-2b), 4.20
(1H, m, H-3), 2.48 (1H, dd, J = 16.8, 6.0 Hz, H-4a),
2.11 (1H, dd, J = 16.8, 8.4 Hz, H-4b), 6.14 (1H, dd,
J = 15.6, 1.8 Hz, H-8), 6.84 (1H, dq, J = 15.6, 6.6 Hz,
H-9), 1.94 (1H, dd, J = 6.6, 1.8 Hz, H-10), 1.13 (3H, s,
H-11), 0.97 (3H, s, H-12), 1.54 (3H, s, H-13), 4.45
(1H, d, J = 7.8 Hz, H-1′), 3.17 (1H, m, H-2′), 3.35
(1H, m, H-3′), 3.31 (1H, m, H-4′), 3.28 (1H, m, H-5′),
3.87 (1H, dd, J = 12.0, 1.8 Hz, H-6′a), 3.68 (1H, dd,
J = 12.0, 4.8 Hz, H-6′b); 13C-NMR (150 MHz,
CD3OD) δ: 37.0 (C-1), 38.5 (C-2), 72.8 (C-3), 46.6
(C-4), 140.9 (C-5), 129.8 (C-6), 204.2 (C-7), 135.3
(C-8), 149.7 (C-9), 21.3 (C-10), 29.5 (C-11), 30.2
(C-12), 18.5 (C-13), 102.5 (C-1′), 75.2 (C-2′), 78.1
(C-3′), 71.7 (C-4′), 77.9 (C-5′), 62.8 (C-6′)。以上数据
与文献报道基本一致 [16],故鉴定化合物 10 为
3-hydroxy-β- damascone glucoside。
化合物 11:淡黄色固体。ESI-MS m/z: 441 [M+
Na]+。1H-NMR (400 MHz, CD3OD) δ: 5.14 (1H, dd,
J = 17.2, 1.2 Hz, H-1a), 4.98 (1H, dd, J = 10.8, 1.2 Hz,
H-1b), 5.87 (1H, dd, J = 17.2, 10.8 Hz, H-2), 1.49
(2H, m, H-4), 2.00 (2H, m, H-5), 5.19 (1H, overlap,
H-6), 2.26 (1H, m, H-8a), 2.14 (1H, m, H-8b), 1.41
(2H, m, H-9), 3.37 (1H, m, H-10), 1.09 (3H, s, H-12),
1.13 (3H, s, H-13), 1.56 (3H, s, H-14), 1.21 (3H, s,
H-15), 4.40 (1H, d, J = 8.0 Hz, H-1′), 3.23 (2H, m,
H-2′, 3′), 3.33 (2H, m, H-4′, 5′), 3.82 (1H, dd, J =
11.6, 2.4 Hz, H-6′a), 3.69 (1H, dd, J = 11.6, 4.8 Hz,
H-6′b);13C-NMR (100 MHz, CD3OD) δ: 112.0 (C-1),
146.3 (C-2), 74.8 (C-3), 43.5 (C-4), 23.7 (C-5), 126.2
(C-6), 136.1 (C-7), 37.0 (C-8), 30.8 (C-9), 90.4
(C-10), 73.9 (C-11), 26.4 (C-12), 23.9 (C-13), 16.1
(C-14), 27.6 (C-15), 106.4 (C-1′), 76.0 (C-2′), 77.9
(C-3′), 71.5 (C-4′), 78.5 (C-5′), 62.7 (C-6′)。以上数据
与文献报道基本一致[17],故鉴定化合物 11 为反枝
苋苷 IV。
化合物 12:淡黄色固体。ESI-MS m/z: 441 [M+
Na]+。1H-NMR (400 MHz, C5D5N) δ: 5.36 (1H, dd,
J = 17.6, 0.8 Hz, H-1a), 5.21 (1H, dd, J = 10.8, 0.8 Hz,
H-1b), 6.28 (1H, dd, J = 17.6, 10.8 Hz, H-2), 2.27
(1H, m, H-4a), 1.78 (1H, m, H-4b), 2.29 (2H, m, H-5),
5.33 (1H, overlap, H-6), 2.62 (1H, m, H-8a), 2.04 (1H,
m, H-8b), 1.76 (2H, m, H-9), 3.74 (1H, m, H-10), 1.48
(3H, s, H-12), 1.51 (3H, s, H-13), 1.58 (3H, s, H-14),
1.64 (3H, s, H-15), 4.97 (1H, d, J = 8.0 Hz, H-1′), 4.02
(1H, m, H-2′), 4.22 (2H, m, H-3′, 4′), 3.86 (1H, m,
H-5′), 4.48 (1H, dd, J = 11.6, 2.4 Hz, H-6′a), 4.33 (1H,
dd, J = 11.6, 5.3 Hz, H-6′b);13C-NMR (100 MHz,
C5D5N) δ: 115.2 (C-1), 145.0 (C-2), 80.5 (C-3), 42.7
(C-4), 23.4 (C-5), 125.4 (C-6), 135.9 (C-7), 31.2
(C-8), 38.0 (C-9), 79.2 (C-10), 73.0 (C-11), 26.4
(C-12), 23.9 (C-13), 16.7 (C-14), 26.5 (C-15), 100.2
(C-1′), 75.8 (C-2′), 78.8 (C-3′), 72.3 (C-4′), 78.5 (C-
5′), 63.4 (C-6′)。以上数据与文献报道基本一致[18],
故鉴定化合物 12为 icariside C3。
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