Studies on new antitumor antibiotics, leptofuranins A, B, C and D .2. Physicochemical properties and structure elucidation

被引:27
作者
Hayakawa, Y
Sohda, KY
Seto, H
机构
[1] Inst. of Molec. and Cell. Biosci., University of Tokyo, Bunkyo-ku
关键词
D O I
10.7164/antibiotics.49.980
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
The structures of new antitumor antibiotics, leptofuranins A, B, C and D were elucidated to be as shown in Fig. 1 by NMR spectral analysis including a variety of two-dimensional techniques. The leptofuranins are novel leptomycin-related substances containing a tetrahydrofuran ring. Leptofuranins C and D were revealed to be in tautomeric isomerism and their relative stereochemistries were analyzed by NOESY experiments.
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页码:980 / 984
页数:5
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