SECONDARY MOLD METABOLITES .41. STRUCTURE AND BIOSYNTHESIS OF CERCOSPORA-BETICOLA TOXIN (CBT)

被引:15
作者
ARNONE, A
NASINI, G
MERLINI, L
RAGG, E
ASSANTE, G
机构
[1] POLITECN MILAN, DIPARTIMENTO CHIM POLITECN, CTR CNR SOSTANZE ORGAN NAT, PIAZZA L DAVINCI 32, I-20133 MILAN, ITALY
[2] UNIV MILAN, DIPARTIMENTO SCI MOLEC AGROALIMENTARI, SEZ CHIM, I-20133 MILAN, ITALY
[3] UNIV MILAN, IST PATOL VEGETALE, I-20133 MILAN, ITALY
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1993年 / 01期
关键词
D O I
10.1039/p19930000145
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The structure of Cercospora beticola toxin (CBT) 1, a phytotoxic metabolite, was elucidated on the basis of mass, H-1 NMR, C-13 NMR and 2D NMR (C-13, C-13 COSY and H-1, H-1 ROESY) spectra and from biosynthetic evidence obtained from incorporation of [1-C-13]acetate and (1,2-C-13]acetate. The product is a 2:2 complex with Mg of a compound derived from the coupling of two octaketide-derived reduced anthraquinone and xanthone moieties.
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页码:145 / 151
页数:7
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