New beauvericins, potentiators of antifungal miconazole activity, produced by Beauveria sp FKI-1366 -: II.: Structure elucidation.

The structures of beauvericins D, E and F, novel potentiators of miconazole activity against Candida albicans produced by Beauveria sp. FKI 1366, were elucidated by various spectroscopic analyses including UV NMR, and MS and degradation experiments. They have the common skeleton of the 18-membered cyclodepsipeptides.