A new polyketide purpurogenic acid: the activated production of polyketides by the diethyl sulphate mutagenesis of marine-derived Penicillium purpurogenum G59 |
| |
Authors: | Ming-Wen Xia Yu Yang Rui Xu Cheng-Bin Cui |
| |
Institution: | State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China |
| |
Abstract: | A new polyketide, purpurogenic acid (1), and two known polyketides, (-)-mitorubrin (2) and (-)-mitorubrinol (3), were isolated from a fungal mutant derived from the diethyl sulphate (DES) mutagenesis of marine-derived Penicillium purpurogenum G59. The planar structure of new 1 was elucidated by spectroscopic methods and the absolute configuration was assigned on the basis of α]D and CD data. In our preliminary MTT assay, 1 inhibited human cancer K562, HL-60, HeLa and BGC-823 cells with the inhibition rates of 52.7, 78.8, 38.4 and 35.3% at the 100 μg/mL, respectively. |
| |
Keywords: | Purpurogenic acid (-)-mutorubrin (-)-mutorubrinol polyketides Penicillium purpurogenum diethyl sulphate (DES) mutagenesis |
|
|