LEPTOSIN-I AND LEPTOSIN-J, CYTOTOXIC SUBSTANCES PRODUCED BY A LEPTOSPHAERIA SP - PHYSICOCHEMICAL PROPERTIES AND STRUCTURES

被引:52
作者
TAKAHASHI, C
NUMATA, A
MATSUMURA, E
MINOURA, K
ETO, H
SHINGU, T
ITO, T
HASEGAWA, T
机构
[1] OSAKA UNIV PHARMACEUT SCI,MATSUBARA,OSAKA 580,JAPAN
[2] KOBE GAKUIN UNIV,DEPT PHARMACEUT SCI,NISHI KU,KOBE 673,JAPAN
[3] INST FERMENTAT,YODOGAWA KU,OSAKA 532,JAPAN
关键词
D O I
10.7164/antibiotics.47.1242
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Leptosins I and J, belonging to a series of epipolythiodioxopiperazines, have been isolated from the mycelium of a strain of Leptosphaeria sp. OUPS-4 attached to the marine alga Sargasssum tortile. Their relative stereostructures have been elucidated by chemical and spectral evidence. These compounds exhibited significant cytotoxic activity against cultured P388 cells.
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页码:1242 / 1249
页数:8
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