Structure and absolute configuration of acetosellin, a new polyketide from a phytotoxic strain of Cercosporella acetosella
Structure and absolute configuration of acetosellin, a new polyketide from a phytotoxic strain of Cercosporella acetosella
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DOI：
10.1016/s0040-4039(02)00091-6
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发表时间：
2002-02-25
影响因子：
1.8
通讯作者：
de Pava, OV
中科院分区：
文献类型：
--
作者：
Nasini, G;Arnone, A;de Pava, OV
从茜草Cercosporella acetosella菌丝体中分离到一种新的黄色色素，命名为acetoselin1，它是茜草酮的还原物。通过光谱调查和化学证据确定了I的结构。化合物I具有一种新颖的碳骨架，即萘炔衍生物，与一个广泛共轭链相连。通过NOE实验和CD相关性确定了绝对构型。(C) 2002 Elsevier Science Ltd.版权所有。
A new yellow pigment, designated acetosellin 1, was isolated from the mycelium of Cercosporella acetosella as a reduced azaphilone metabolite. The structure of I was determined by spectroscopic investigations and chemical evidence. Compound I possesses a novel carbon skeleton that of a naphtopyrane derivative, linked to an extensively conjugated chain. The absolute configuration was determined by NOE experiments and CD correlations. (C) 2002 Elsevier Science Ltd. All rights reserved.