Ibraheim Zedan Z, Hassanean Hashem A, Bishay Daoud W
Pharmacognosy Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt.
Phytochemistry. 2003 Apr;62(8):1201-5. doi: 10.1016/s0031-9422(02)00620-9.
From the saponin fraction of the total methanolic extract of the dried root and stem barks of Taverniera aegyptiaca Boiss, six new triterpenoidal saponins of oleanane type were isolated and identified as 28-methyl serratagenate-3-beta-O-beta-xylopyranosyl (1-->2)-beta-glucopyranoside (2), 28-methyl serratagenate 3-beta-O-alpha-rhamnopyranosyl (1-->2)-beta-glucopyranoside (3), 3beta-O-alpha-rhamnopyranosyl (1-->2) beta-glucopyranosyl-olean-11,13(18)-dien-1beta, 3beta, 22beta-triol (4), 3beta-O-beta-glucopyranosyl (1-->2)-beta-glucuronopyranosylolean-11,13(18)-dien-1beta,3beta,22beta-triol (5), 3beta-O-beta-xylopyranosyl(1-->2)-beta-glucuronopyranosylolean-11,13(18)-dien-1beta,3beta,22beta-triol (6), 3beta-O-alpha-rhamnopyranosyl (1-->2)-beta-glucuronopyranosylolean-11,13(18)-dien-1beta, 3beta, 22beta-triol (7) together with the known oleanolic acid 3-beta-O-beta-glucoside (1). The identification of the isolated compounds was done on the basis of chemical and spectral evidences.
从埃及刺蒴麻(Taverniera aegyptiaca Boiss)干燥根和茎皮的总甲醇提取物的皂苷部分中,分离并鉴定出六种新的齐墩果烷型三萜皂苷,分别为28 - 甲基锯齿龙苷 - 3 - β - O - β - 木糖吡喃糖基(1→2) - β - 葡萄糖吡喃糖苷(2)、28 - 甲基锯齿龙苷3 - β - O - α - 鼠李糖吡喃糖基(1→2) - β - 葡萄糖吡喃糖苷(3)、3β - O - α - 鼠李糖吡喃糖基(1→2)β - 葡萄糖吡喃糖基 - 齐墩果 - 11,13(18) - 二烯 - 1β,3β,22β - 三醇(4)、3β - O - β - 葡萄糖吡喃糖基(1→2) - β - 葡萄糖醛酸吡喃糖基齐墩果 - 11,13(18) - 二烯 - 1β,3β,22β - 三醇(5)、3β - O - β - 木糖吡喃糖基(1→2) - β - 葡萄糖醛酸吡喃糖基齐墩果 - 11,13(18) - 二烯 - 1β,3β,22β - 三醇(6)、3β - O - α - 鼠李糖吡喃糖基(1→2) - β - 葡萄糖醛酸吡喃糖基齐墩果 - 11,13(18) - 二烯 - 1β,3β,22β - 三醇(7),以及已知的齐墩果酸3 - β - O - β - 葡萄糖苷(1)。分离得到的化合物是根据化学和光谱证据进行鉴定的。