AO-1535 is a semisynthetic monoglycosylceramide derived from O-glycosilated sphingosine. It has been shown to inhibit superoxide production by macrophages suggesting a potential clinical application of AO 1535 in the treatment of inflammatory dermatoses.
Carbazomycin C is a bacterial metabolite that has been found in Streptomyces and has diverse biological activities. It is active against S. aureus, B. anthracis, B. subtilis, and M. flavus, the fungi T. asteroides and T. mentagrophytes, and P. falciparum. It is also active against a panel of five plant pathogenic fungi. Carbazomycin C is cytotoxic to MCF-7, KB, and NCI H187 cells. It also inhibits 5-lipoxygenase (5-LO) activity in RBL-1 cell extracts.