Chiung Y M, Fujita T, Nakagawa M, Nozaki H, Chen G Y, Chen Z C, Nakayama M
Department of Agricultural Chemistry, University of Osaka Prefecture, Japan.
J Antibiot (Tokyo). 1993 Dec;46(12):1819-26. doi: 10.7164/antibiotics.46.1819.
A novel quinone antibiotic named malbranicin was isolated from the culture filtrate and mycelium of Malbranchea cinnamomea TAIM 13T54, a thermophilic fungus. The antibiotic was elucidated to be 6-(1-acetylethyl)-2-methoxy-2,5-cyclohexadiene-1,4-dione by spectral analysis. Malbranicin exhibited antimicrobial and cytotoxic activities against Gram-positive bacteria and mammalian cell lines, respectively.