caspofungin acetate

The acetate salt of an antimycotic echinocandin lipopeptide, semisynthetically derived from a fermentation product of the fungus Glarea lozoyensis. Caspofungin inhibits 1,3-beta-glucan synthase, resulting in decreased synthesis of beta(1,3)-D-glucan (an essential component of the fungal cell wall), weakening of the fungal cell wall, and fungal cell wall rupture. This agent is active against Aspergillus and Candida species.