Synthesis of 2-Phenylbenzofuran Derivatives as Testosterone 5.ALPHA.-Reductase Inhibitor.
作者:Koki ISHIBASHI、Katsuyoshi NAKAJIMA、Yuki SUGIOKA、Mitsuo SUGIYAMA、Takakazu HAMADA、Hiroyoshi HORIKOSHI、Takahide NISHI
DOI:10.1248/cpb.47.226
日期:——
A series of 2-phenylbenzofuran derivatives with a carbamoyl, alkylamino, or alkyloxy group at the 5 or 6 position of the benzofuran ring were synthesized and evaluated for rat and human testosterone 5α-reductase inhibitory activities in vitro. Against rat enzyme, the carbamoyl derivatives had more potent inhibitory activities than the alkylamino or alkyloxy derivatives, and the 6-carbamoyl derivatives tended to be more potent than the 5-carbamoyl derivatives. Against human enzyme, the 6-substituted derivatives had more potent inhibitory activities than the 5-substituted derivatives. The 6-carbamoyl and 6-alkylamino derivatives tended to show stronger inhibitory activities against human type 1 enzyme than against type 2 enzyme, but they were not largely selective.
一系列在苯并呋喃环的5或6位带有羰酰胺、烷基胺或烷氧基的2-苯基苯并呋喃衍生物被合成并评估了它们对大鼠和人体睾酮5α-还原酶的体外抑制活性。针对大鼠酶,羰酰胺衍生物的抑制活性比烷基胺或烷氧基衍生物更强,且6-羰酰胺衍生物往往比5-羰酰胺衍生物更有效。针对人体酶,6位取代的衍生物比5位取代的衍生物具有更强的抑制活性。6-羰酰胺和6-烷基胺衍生物往往对人类1型酶显示出比2型酶更强的抑制活性,但选择性不高。