ISOLATION AND STRUCTURE DETERMINATION OF NATURAL ANALOGS OF THE MYCOTOXIN OCHRATOXIN-A PRODUCED BY ASPERGILLUS-OCHRACEUS

被引:21
作者
HADIDANE, R
BACHA, H
CREPPY, EE
HAMMAMI, M
ELLOUZE, F
DIRHEIMER, G
机构
[1] UNIV BORDEAUX 2,TOXICOL & HYG APPL LAB,3 TER PL VICTOIRE,F-33076 BORDEAUX,FRANCE
[2] UNIV CTR MONASTIR,FAC MED DENT,MONASTIR 5000,TUNISIA
[3] UNIV BORDEAUX 2,FAC MED,F-33076 BORDEAUX,FRANCE
[4] UNIV BORDEAUX 2,FAC PHARM,F-33076 BORDEAUX,FRANCE
[5] UNIV STRASBOURG 1,CNRS,INST BIOL MOLEC & CELLULAIRE,F-67084 STRASBOURG,FRANCE
[6] UNIV STRASBOURG 1,CTR RECH,F-67084 STRASBOURG,FRANCE
关键词
OCHRATOXIN-A; OCHRATOXIN-A ANALOGS; SERINE-OCHRATOXIN; HYDROXYPROLINE-OCHRATOXIN; LYSINE-OCHRATOXIN;
D O I
10.1016/0300-483X(92)90192-H
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Three new natural mycotoxins, analogues of ochratoxin A, in which the phenylalanine moiety is replaced by serine, hydroxyproline or lysine, were isolated from cultures of Aspergillus ochraceus by TLC followed by HPLC column chromatography. Their structures were determined after acidic hydrolysis by the characterisation of both their amino acid moieties and of ochratoxin alpha, the chlorinated dihydroisocoumarin moiety of ochratoxin A. These structures were confirmed by mass spectrum analysis.
引用
收藏
页码:233 / 243
页数:11
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