S. Grabley et al., SECONDARY METABOLITES BY CHEMICAL-SCREENING .26. 7-0-BETA-D-GALACTOSYL-BREFELDIN-A VIA TRANSGLYCOSYLATION WITH PENICILLIUM BREFELDIANUM, Journal of natural products, 57(4), 1994, pp. 541-544
A lactose-containing fermentation medium initiated the formation of 7-
O-beta-D-galactosyl-brefeldin A [1] in the brefeldin A-producing organ
ism, Penicillium brefeldianum. The detection, isolation, and physicoch
emical properties of 1, which has been produced by biological derivati
zation via transglycosylation, are described. Compound 1 is the first
glycosylated brefeldin A derivative to have been prepared.