Abstract
Nine new oxazolinyl derivatives of [17(20)E]-21-norpregnene, differing in the structure of steroid moiety, were investigated for their potency to inhibit the CYP17A1 catalytic activity, as well as growth and proliferation of LNCaP and PC-3 prostate carcinoma cell lines. The activity of one of the investigated compounds, 2´-{[(E)3β-hydroxyandrost-5-en-17-ylidene]methyl}-4´,5´-dihydro-1´,3´-oxazole (1), was found to be comparable with that of Abiraterone, a known inhibitor of CYP17A1 used for treatment of prostate cancer. A model of the interaction of oxazoline 1 with the active site of CYP17A1 was constructed by the molecular dynamics method. A correlation was found between the structure and the biological activity in the series of [17(20)E]-21-norpregnene oxazolinyl derivatives.
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