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Four New Lanostane Triterpenoids from Euphorbia humifusa

✍ Scribed by Zhi-Qiang Lu; Guang-Tong Chen; Jin-Qiang Zhang; Hui-Lian Huang; Shu-Hong Guan; De-An Guo

Publisher
John Wiley and Sons
Year
2007
Tongue
German
Weight
183 KB
Volume
90
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Four new lanostane triterpenoids, namely (3__β__)‐3‐hydroxy‐24‐methylenelanost‐8‐ene‐7,11‐dione (1), (3__β__)‐3‐hydroxylanosta‐8,24‐diene‐7,11‐dione (2), (3__β__,7__α__)‐3,7‐dihydroxylanosta‐8,24‐dien‐11‐one (3), and (3__β__,11__β__)‐3,11‐dihydroxylanosta‐8,24‐dien‐7‐one (4) were isolated from Euphorbia humifusa, together with 2 known compounds. The structures of these new compounds were elucidated on the basis of extensive spectroscopic analysis and comparison with the related known compounds.

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