Chukvelutilides A-F, phragmalin limonoids from the stem barks of Chukrasia tabularis var. velutina
Chukvelutilides A-F, phragmalin limonoids from the stem barks of Chukrasia tabularis var. velutina
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DOI:
10.1016/j.tet.2009.02.046
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发表时间:
2009-04-25
期刊:
影响因子:
2.1
通讯作者:
Kong, Ling-Yi
中科院分区:
文献类型:
--
作者:
Luo, Jun;Wang, Jun-Song;Kong, Ling-Yi
Chukvelutilides A-F (1-6), a new class of C-15-acyl phragmalin type limonoids, featuring a C-16/C-30 delta-lactone ring, were isolated from Chukrasia tabularis var. velutina. These compounds are suggested to possess a three- or four-carbon enolized acyl substituent at C-15 through a plausible biosynthetic origin. Their structures were elucidated by extensive spectroscopic means, and that of 1 was confirmed by single-crystal X-ray diffraction. (C) 2009 Elsevier Ltd. All rights reserved.