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.

Structure and absolute configuration of acetosellin, a new polyketide from a phytotoxic strain of Cercosporella acetosella

CANDIANI, GABRIELE;
2002

Abstract

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.
TETRAHEDRON LETTERS
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/557554
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