A new cyclodepsipeptide cordycecin A (1), together with four known ones beauvericin E (2), beauvericin J (3), beauvericin (4), and beauvericin A (5) was isolated from the ascocarps and insect-body portions of fungus Cordyceps cicadae. Their structures were identified by NMR and MS analyses. The absolute configuration of 1 was confirmed by crystal X-ray diffraction. Compounds 2-5 exhibited a significant inhibitory effect on HepG2 and HepG2/ADM cells with IC50 values ranging from 2.40±0.37 to 14.48±1.68 μM. Interestingly, compounds 3-5 showed cytotoxic activity against multiple drug resistant HepG2 cell line (HepG2/ADM) with IC50 value 25-fold more sensitive to doxorubicin.
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