A new yellow pigment, designated acetosellin 1, was isolated from the mycelium of Cercosporella acetosella as a reduced azaphilone metabolite. The structure of 1 was determined by spectroscopic investigations and chemical evidence. Compound 1 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.
|Titolo:||Structure and absolute configuration of acetosellin, a new polyketide from a phytotoxic strain of Cercosporella acetosella.|
|Settore Scientifico Disciplinare:||Settore AGR/12 - Patologia Vegetale|
|Data di pubblicazione:||2002|
|Appare nelle tipologie:||01 - Articolo su periodico|