Tetrahydronaphthalenes: Influence of Heterocyclic Substituents on Inhibition of Steroidogenic Enzymes P450 arom and P450 17
作者:Gerald A. Wächter、Rolf W. Hartmann、Tom Sergejew、Gertrud L. Grün、Dorothea Ledergerber
DOI:10.1021/jm950377t
日期:1996.1.1
relatively selective toward P450 17. (P450 arom: K(m) testosterone = 42 nM, K(i)16 = 33 nM, K(i)20 = 3 microM. P450 17: K(m)progesterone = 7 microM, K(i)16 = 9 microM, K(i)20 = 80 nM). 17 and 24 were not selective since they showed strong inhibition of P450 arom (K(i)17 = 26 nM, K(i)24 = 0.12 microM) and P450 17 (K(i) 17 = 0.7 microM, K(i)24 = 0.11 microM).
(E)-4-咪唑基化合物16(rp = 71)显示出竞争性抑制类型。另一方面,这些化合物中的某些抑制大鼠睾丸P45017。3-吡啶基化合物20显示最大活性(rp = 10,keconconazole的ro = 1)。20是唯一对TXA(2)合酶具有显着抑制作用的化合物(IC(50)= 14.5 microM;达唑昔本的IC(50)= 1.1 microM)。关于对类固醇生成酶的选择性,化合物16对P450 arom相对选择性,而化合物20对P450 17相对选择性。(P450 arom:K(m)睾丸激素= 42 nM,K(i)16 = 33 nM,K( i)20 = 3microM。P45017:K(m)孕酮= 7 microM,K(i)16 = 9 microM,K(i)20 = 80 nM)。17和24不是选择性的,因为它们显示出对P450 arom(K(i)17 = 26 nM,K(i)24