New spirostanol glycosides from Solanum nigrum and S. jasminoides
New spirostanol glycosides from Solanum nigrum and S. jasminoides
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来自龙葵和茉莉花的新螺甾醇糖苷
DOI：
10.1007/s11418-012-0637-z
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Ohno M
中科院分区：
文献类型：
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作者：
ルクババスレン バトトプシン;岡孝和;須藤信行;林晴男;Ohno M
从茄属植物（solanumnigruml）枯萎果实中分离到一种具有C-23羟基特征的新甾体糖苷——inunigroside A(1)。在光谱分析的基础上，表征了1的结构为(5α,22S,23S,25R)-3β，23-二羟基螺体烷3-O-β-番茄四苷。接下来，从茉莉素（solanum jasminoidesL）地上部分甲醇提取物的酸水解产物中获得了主要的甾体皂苷醇(22R,25S)-3β，15α-二羟基-spirost-5-ene(3)。从栀子醇提物中分离得到新的双苷，3-O-β-d-葡萄糖苷-(1→4)-β-d-葡萄糖苷-(1→4)-β-d-葡萄糖苷(22R,25S)-3β，15α-二羟螺-5-烯15-O-α-l-鼠李糖吡喃苷(4)，命名为茉莉苷A。jasminoides。
A new characteristic steroidal glycoside possessing a hydroxyl group at C-23, inunigroside A (1), was isolated from the withered berries ofSolanumnigrumL. On the basis of spectroscopic analysis, the structure of1was characterized as (5α,22S,23S,25R)-3β,23-dihydroxyspirostane 3-O-β-lycotetraoside. Next, a major steroidal sapogenol, (22R,25S)-3β,15α-dihydroxy-spirost-5-ene (3), was obtained from the acid hydrolysate of the methanolic extract of the aerial parts ofSolanum jasminoidesL. A new bisdesmoside, 3-O-β-d-glucopyranosyl-(1→4)-β-d-glucopyranosyl-(1→4)-β-d-glucopyranosyl (22R,25S)-3β,15α-dihydroxyspirost-5-ene 15-O-α-l-rhamnopyranoside (4), named jasminoside A, was isolated from the methanolic extract ofS. jasminoides.