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  • Two New Steroidal Saponins from the Processed Polygonatum kingianum
    [作者:Yu, HS; Ma, BP; Song, XB; Kang, LP; Zhang, T; Fu, J; Zhao, Y; Xiong, CQ; Tan, DW; Zhang, LJ; Zhang, J; Yu, KT,期刊:Helvetica Chimica Acta, 页码:1086-1092 , 文章类型: Article,,卷期:2010年93-6]
  • Two new spirostanol saponins, kingianoside I (1) and kingianoside K (2), corresponding to (3 beta,23S,25R)-23-hydroxy-12-oxospirost-5-en-3-yl 4-O-beta-D-glucopyranosyl-beta-D-galactopyranoside (1) and (3 beta,25R)-7-oxos...
  • Reaction of Hydantoin with Boronic Acids
    [作者:Gwynne, EA; Holt, JC; Dwan, JR; Appoh, FE; Vogels, CM; Decken, A; Westcott, SA,期刊:Helvetica Chimica Acta, 页码:1093-1100 , 文章类型: Article,,卷期:2010年93-6]
  • We have examined the reaction of hydantoin (= imidazolidine-2,4-dione) with (formylphenyl)boronic acids, where the addition of a boronic acid group is hoped to increase bioactivities. Addition of (2-formylphenyl)boronic ...
  • Three New Diterpenoids from Euphorbia sororia L.
    [作者:Huang, Y; Aisa, HA,期刊:Helvetica Chimica Acta, 页码:1156-1161 , 文章类型: Article,,卷期:2010年93-6]
  • Three new diterpenoids with jatrophane-type skeleton, sororianolides A - C (1-3, resp.), were isolated from Euphorbia sororia. The identification and structure elucidation of these compounds were based on 1D- and 2D-NMR-...