Basidifferquinone, a New Inducer for Fruiting-body Formation of a Basidiomycetes Favolus arcularius from a Streptomyces Strain II. Structure of Basidifferquinone

Abstract

Basidifferquinone is a potent inducer produced by Streptomyces strain B-412 for differentiation of a basidiomycetes Favolus arcularius to form incomplete fruiting bodies. X-Ray crystallography to-gether with MS, IR, ¹H-NMR and ¹³C-NMR spectral analyses revealed the structure of basidiffer-quinone, C₂₄H₁₆O₈, to be (1R)-4, 7, 9-trihydroxy-10-methoxy-8-methyl-l-phenyl-(1H)-anthra[1, 2-C]-furan-3, 6, 00-trione (Fig. 1).