Novel macrocyclic glycolipids from Torulopsis gropengiesseri

Abstract

Chemical and spectroscopic evidence is presented in support of a proposed structure for the crystalline glycolipid which is formed during fermentation of Torulopsis gropengiesseri in a medium supplemented by methyl 9-octa-decenoate. Closely related macrocyclic lactones are formed by fermentations in media supplemented by n-heptadecane, n-hexadecane, and methyl hexadecanoate and also in a medium lacking supplement.