STRUCTURE OF MALFORMIN-B, PHYTOTOXIC METABOLITES PRODUCED BY ASPERGILLUS-NIGER

被引：9

作者：

KIM, KW

SUGAWARA, F

UZAWA, J

YOSHIDA, S

MUROFUSHI, N

TAKAHASHI, N

CURTIS, RW

KANAI, M

机构：

[1] INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN

[2] FINNIGAN MAT INSTRUMENTS INC,CHIYODA KU,TOKYO 102,JAPAN

[3] PURDUE UNIV,DEPT BOT & PLANT PATHOL,W LAFAYETTE,IN 47907

[4] UNIV TOKYO,DEPT AGR CHEM,BUNKYO KU,TOKYO 113,JAPAN

来源：

TETRAHEDRON LETTERS | 1991年 / 32卷 / 46期

关键词：

D O I：

10.1016/S0040-4039(00)93584-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Malformin B, produced by Aspergillus niger, was separated on HPLC and six peaks were detected. Amino acid analyses and mass spectra suggested that all of them are structurally related to cyclic pentapeptide malformin A1. The structures of malformin Bs were deduced by two dimensional NMR experiments and MS/MS experiments as cyclo-D-cysteinyl-D-cysteinyl-L-valyl-D-leucyl-L-alloisoleucyl for B1a, cyclo-D-cysteinyl-D-cysteinyl-L-valyl-D-leucyl-L-leucyl for B1b, and cyclo-D-cysteinyl-D-cysteinyl-L-valyl-D-valyl-L-leucyl for B2.

引用

页码：6715 / 6718

页数：4

共 10 条

[1] MALFORMIN-C, A NEW METABOLITE OF ASPERGILLUS-NIGER [J].