Abstract
Albocycline, C18H28O4, is a neutral antibiotic produced by Streptomyces sp. The physico-chemical properties indicated that it was one of the macrolide antibiotic consisting of only macrocyclic lactone without any carbohydrate moiety. Analytical and spectral data on albocycline, its acetate and ozonolysis products made it possible to assume that albocycline possessed a hydroxy, a methoxy, a lactone, three olefinc linkages and also four branched-methyl groups. From these data the partial structure of albocycline was suggested as illustrated in Chart 1 and 3.
