Scyphiphorins A and B, two new iridoid glycosides from the stem bark of a Chinese mangrove Scyphiphora hydrophyllacea
Scyphiphorins A and B, two new iridoid glycosides from the stem bark of a Chinese mangrove Scyphiphora hydrophyllacea
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DOI：
10.1002/hlca.200790179
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发表时间：
2007-01-01
影响因子：
1.8
通讯作者：
Li, Qing-Xin
中科院分区：
文献类型：
--
作者：
Tao, Shu-Hong;Wu, Jun;Li, Qing-Xin
本文报道了两个新的环烯醚萜苷类化合物，分别命名为scyphiphorins A（1）和B（2）。京尼平苷酸（=（1 S，4aS，7aS）-1-（β-D-吡喃葡萄糖氧基）-1，4a，5，7a-四氢-7-（羟甲基）环戊二烯并[c]吡喃-4-羧酸; 3），4-（4-羟基-3-甲氧基苄基）丁-2-酮，油酸（=（3 β）-3-羟基齐墩果-12-烯-28-酸）。和豆甾醇β-D-葡萄糖苷（=（3 β，22 E）-stigmasta-5，22-dien-3-yl beta-D-glucopyranoside），均为首次从中国红树林的茎皮中分离得到。水螅关闭..化合物I和2的结构分别确定为10-O-苯甲酰基京尼平苷酸和10-O-[（2 E，6 R）-8-羟基-2，6-二甲基-1-氧代辛-2-烯-1-基]京尼平苷酸。分别基于光谱数据和化学方法，包括2D NMR技术。
Two new iridoid glycosides, named scyphiphorins A (1) and B (2), together with four known compounds. geniposidic acid (= (1S, 4aS, 7aS)-1-(beta-D-glucopyranosyloxy)- 1,4a,5,7a-tetrahydro-7-(hydroxylmethyl)cyclopenta[c]pyr an-4-carboxylic acid; 3), 4-(4-hydroxy-3-methoxybenzyl)butan-2-one, oleanolic acid (=(3 beta)-3-hydroxyolean-12-en-28-oic acid). and stigmasterol beta-D-glucoside ( =(3 beta,22E)-stigmasta-5.22-dien-3-yl beta-D-glucopyranoside), were isolated for the first time from the stem bark of a Chinese mangrove. Scyphiphora hydrophyllacea GAERTN. f.. The structures of compounds I and 2 were determined as 10-O-benzoylgeniposidic acid and 10-O-[(2E, 6R)-8-hydroxy-2,6-dimethyl-1-oxooct-2-en-1-yl]geniposidic acid. respectively. on the basis of spectroscopic data and chemical methods, including 2D NMR techniques.