Sova M, Perdih A, Kotnik M, Kristan K, Rizner TL, Solmajer T, Gobec S. Flavonoids and cinnamic acid esters as inhibitors of fungal 17β-hydroxysteroid dehydrogenase: A synthesis, QSAR and modelling study.
Bioorg Med Chem 2006;
14:7404-18. [PMID:
16891119 DOI:
10.1016/j.bmc.2006.07.027]
[Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2006] [Revised: 07/03/2006] [Accepted: 07/10/2006] [Indexed: 11/27/2022]
Abstract
The 17beta-hydroxysteroid dehydrogenases (17beta-HSDs) modulate the biological potency of estrogens and androgens by interconversion of inactive 17-keto-steroids and their active 17beta-hydroxy- counterparts. We have shown previously that flavonoids are potentially useful lead compounds for developing inhibitors of 17beta-HSDs. In this paper, we describe the synthesis and biochemical evaluation of structurally analogous inhibitors, the trans-cinnamic acid esters and related compounds. Additionally, quantitative structure-activity relationship (QSAR) and modelling studies were performed to rationalize the results and to suggest further optimization. The results stress the importance of a hydrogen bond with Asn154 and hydrophobic interactions with the aromatic side chain of Tyr212 for optimal molecular recognition.
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