Synthesis, biological evaluation, and molecular modeling studies of methylene imidazole substituted biaryls as inhibitors of human 17α-hydroxylase-17,20-lyase (CYP17)—Part II: Core rigidification and influence of substituents at the methylene bridge
作者:Qingzhong Hu、Matthias Negri、Kerstin Jahn-Hoffmann、Yan Zhuang、Sureyya Olgen、Marc Bartels、Ursula Müller-Vieira、Thomas Lauterbach、Rolf W. Hartmann
DOI:10.1016/j.bmc.2008.07.011
日期:2008.8
Thirty-five novel substituted imidazolyl methylene biphenyls have been synthesized as CYP17 inhibitors for the potential treatment of prostate cancer. Their activities have been tested with recombinant human CYP17 expressed in Escherichia coli. Promising compounds were tested for selectivity against CYP11B1, CYP11B2, and hepatic CYP enzymes 3A4, 1A2, 2B6 and 2D6. The core rigidified compounds (30-35)
已合成了35种新型取代的咪唑基亚甲基联苯作为CYP17抑制剂,可用于治疗前列腺癌。已经用在大肠杆菌中表达的重组人CYP17测试了它们的活性。测试了有前途的化合物对CYP11B1,CYP11B2和肝CYP酶3A4、1A2、2B6和2D6的选择性。核心刚性化合物(30-35)是最活跃的化合物,比酮康唑更有效,并达到阿比特龙的活性。但是,它们不是非常有选择性。在大鼠中进一步检查了血浆中睾丸激素水平和药代动力学特性的另一种更有效且更具选择性的抑制剂(化合物23,IC(50)= 345 nM)。相较于参考文献Abiraterone,体内有23种活性更高,显示更长的血浆半衰期(10小时)和更高的生物利用度。使用我们的CYP17同源蛋白模型,与选定化合物进行对接研究,以研究抑制剂与活性位点氨基酸残基之间的可能相互作用。