Ganomycins A and B, New Antimicrobial Farnesyl Hydroquinones from the Basidiomycete Ganoderma pfeifferi

Abstract
Two new farnesyl hydroquinones named ganomycin A (1) and ganomycin B (2) were isolated from Ganoderma pfeifferi, and their structures were elucidated by spectroscopic methods. Both carboxylic acids exhibit antimicrobial activity against several Gram-positive and Gram-negative bacteria.