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Multiflorane Triterpene Esters from the Seeds of Trichosanthes kirilowii

✍ Scribed by Tao Wu; Xue-Mei Cheng; S. W. Annie Bligh; Gui-Xin Chou; Zheng-Tao Wang; Alan Bashall; Chris Branford-White

Publisher
John Wiley and Sons
Year
2005
Tongue
German
Weight
107 KB
Volume
88
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Two new multiflorane triterpene esters, (3__α__,7__β__)‐3,7,29‐trihydroxymultiflor‐8‐ene‐3,29‐diyl dibenzoate (2) and (3__α__)‐3,29‐dihydroxy‐7‐oxomultiflor‐8‐ene‐3,29‐diyl dibenzoate (3) have been isolated from the CHCl~3~ extract of the seeds of Trichosanthes kirilowii, together with two known compounds, (3__α__,5__α__,22__E__)‐24‐ethylcholesta‐7,22,25(27)‐trien‐3‐ol and darutigenol. The structures of the new compounds were elucidated on the basis of extensive NMR experiments, and by means of an X‐ray crystallographic analysis of 2. A preliminary cytotoxicity assay showed that 2 and 3 are basically inactive against the K562 cell line.

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