Nine undescribed oxidized ergosterols from the endophytic fungus Penicillium herquei and their cytotoxic activity
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A chemical investigation of the EtOAc extract of the endophytic fungus Penicillium herquei led to the isolation of nine undescribed oxidized ergosterols, penicisterols A-I (1-9), along with ten known analogs (10-19). Their structures and absolute configuration... ...
