抄録
Chemical structures of the minor components obtained from the culture filtrate of Streptomyces rochei var. volubilis, lankacyclinol A and iso-lankacidinol, and the anti microbially active metabolites, lankacyclinol, were proposed by chemical degradation studies and spectral analyses. Lankacyclinol A and lankacyclinol were the decarboxylated compounds of lankacidinol A and lankacidinol, respectively. Iso-lankacidinol was assumed to be 16-epimer of lankacidinol. These compounds are belong to lankacidin-group (T-2636) antibiotics whose chemical structures are shown in Chart 1.
