排序方式: 共有3条查询结果,搜索用时 0 毫秒
1
1.
Sesquiterpenoids from Chloranthus spicatus (Thunb.) Makino 总被引:2,自引:0,他引:2
Two new sesquiterpenoids, namely 1β,4β-dihydroxy-5 α,8β(H)-eudesm-7(11)Z-en-8,12-olide (1) and 1β,4α-dihydroxy-5α,8β(H)-eudesm-7(11)Z-en-8,12-olide (2), along with six known ones, homalomenol A (3), oplodiol (4), 5α,7α(H)-6,8-cycloeudesma-1β,4β-diol (5), oplopanone (6), 4β,10α-dihydroxyaromadendrane (7) and spathulenol (8), were isolated from the aerial part of Chloranthus spicatus (Thunb.) Makino, and their structures were established by spectroscopic methods. 相似文献
2.
Sterols from the Fungus Catathelasma imperiale 总被引:3,自引:0,他引:3
Eight ergostane-type sterols and three their derivatives (one mono-linoleate and two mono-glucosides) were isolated from the ethyl acetate soluble fraction of the fungus Catathelasma imperi.a/e. Two of them are novel compounds, namely 22E,24R-er-gosta-7,22-diene-3β ,5α-diol-6β-linoleate (1) and 22E, 24R-er-gosta-7,22-diene-3β, 5β, 6α-triol (5) with an uncommon c/s-fused A/B ring. Structures of these compounds were demon-strated on the basis of their chemical evidences and spectroscop-ic methods, especially 2D NMR techniques. 相似文献
3.
Seven new sesquiterpenoids, namely eupatochinilides Ⅰ-Ⅶ (1-7), together with eight known compounds, euponin (8), mollisorin A (9), niveusin B (10), 8β-(4'-acetoxy-tiglyloxy)-3β-hydroxy-6Hβ,7Hα-germacra-1(10)E,4E,11(13)-trien-6,12-olide (11), eupalinifide B (12), 8β-(4'-hydroxytigloyloxy)-5-desoxy-8-desacyleuparotin (13), 3-deacetyeupalinin A (14), and 15-hydroxyleptocarpin (15), were isolated from the ethanolic extract of the whole plant of Eupatorium chinense L. Their structures and stereochemistry were established by spectroscopic methods and GIAO based ^13C NMR chemical shift calculations. 相似文献
1