20(3''-Oxo-caspofungin) Triflate Salt is derived from Pneumocandin B0 (P645300), which is the major analogue of a family of lipopeptides isolated from several species of several different genera, such as Cryptosporiopsis, Glarea and Pezicula. Pneumocandin B0 is a potent antifungal and acts by inhibition of the synthesis of β-(1,3)-D-glucan, an essential component of the cell wall of susceptible fungi.
