Studies on Aromatase Inhibitors. III. Synthesis and Biological Evaluation of ((4-Bromobenzyl)(4-cyanophenyl)amino)azoles and Their Azine Analogs.
作者:Minoru OKADA、Toru YODEN、Eiji KAWAMINAMI、Yoshiaki SHIMADA、Masafumi KUDOH、Yasuo ISOMURA
DOI:10.1248/cpb.45.482
日期:——
A series of [(4-bromobenzyl)(4-cyanophenyl)amino]azoles and their azine analogs, which have the side chain of the selective aromatase inhibitor YM511, were synthesized and evaluated for aromatase-inhibitory activity (in vivo) and for pregnant mare serum gonadotropin (PMSG)-induced estrogen synthesis inhibitory activity (in vitro). Among these aza-heterocycles, the pyrimidin-5-yl derivative (6a) was the most potent aromatase inhibitor and its in vitro inhibitory activity was comparable to that of YM511. Compound 6a also showed weak inhibitory activity on aldosterone synthesis. These data indicated that the pyrimidin-5-yl moiety is useful as a new azole fragment in place of the 4H-1, 2, 4-triazol-4-yl moiety of the aromatase inhibitor YM511.
一系列具有选择性芳香化酶抑制剂YM511侧链的[(4-溴苄)(4-氰基苯)氨基]噁唑及其肼类似物被合成并评估了其芳香化酶抑制活性(体内)和对孕马血清促性腺激素(PMSG)诱导的雌激素合成抑制活性(体外)。在这些杂氮类化合物中,吡啶-5-基衍生物(6a)是最强的芳香化酶抑制剂,其体外抑制活性与YM511相当。化合物6a对醛固酮合成也表现出弱抑制活性。这些数据显示,吡啶-5-基结构可作为芳香化酶抑制剂YM511中4H-1,2,4-三唑-4-基结构的新噁唑片段的替代物。