Novel macrocyclic antibiotics: Megovalicins a, b, c, d, G and H. II. Isolation and chemical structures of megovalicins

Abstract

Myxococcus flavescens AJ12298 was found to produce the complex of macrocyclic antibiotics named megovalicins. The physico-chemical studies revealed that megovalicins C and B were identical to myxovirescin A1 and antibiotic M-230B, respectively, and that megovalicins A, D, G and H were closely related new antibiotics. © 1988, JAPAN ANTIBIOTICS RESEARCH ASSOCIATION. All rights reserved.