Two pentacyclic triterpenes from the stem of Calotropis procera

Two pentacyclic triterpenes from the stem of Calotropis procera
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牛角瓜茎中的两种五环三萜类化合物

DOI:
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发表时间:
2003
影响因子:
0.5
通讯作者:
J. Singh
J. Singh
中科院分区:
化学4区
文献类型:
--
作者:
Aditi Gupta;Rachana Singh;Chhavi Purwar;D. Chauhan;J. Singh

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本文报道了从短梗卫矛(Calotropis procera)茎中分离得到的两个皂苷类化合物,经化学和光谱鉴定,其结构分别为3-O-[α-L-吡喃鼠李糖基(1→ 2)-β-D-吡喃木糖基(1→ 2)-β-D-吡喃葡萄糖基(1→6)-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃葡萄糖苷]-3β-羟基羟基-12-烯-酸1和3β-羟基-12-烯-28-酸-28-O-β-D-吡喃葡萄糖苷2。
Two saponins have been isolated from the stem of Calotropis procera and their structures stablished as 3-O-[α-L-rhamnopyranosyl(1→2)-β-D-xylopyranosyl1→2)-β-t)-glucopyranosyl-(1→6)-β-D-glucopyranosyl(1→3)-β-D-glucopyranoside}-3β-hydroxyolcan-12-ene-oic acid 1 and 3β-hydroxy olean-12-ene-28-oic acid-28-O-β-D-glucopyranoside 2 on the basis of chemical and spectral evidences.