Stereochemistry of the epoxydon group antibiotic G7063-2 isolated from a Streptomyces species HPL Y-25711.

Abstract
The absolute configuration of the ring system of the antibiotic G7063-2 was established as being the same as that reported for terreic acid, based on circular dichroism data. During structure elucidation experiments, reaction with ethereal diazomethane gave an adduct whose structure is proposed.