Interphenylene 7-oxabicyclo[2.2.1]heptane thromboxane A2(TxA2)antagonists. Semicarbazone .omega.-chains
作者:Raj N. Misra、Baerbel R. Brown、Wen Ching Han、Don N. Harris、Anders Hedberg、Maria L. Webb、Steven E. Hall
DOI:10.1021/jm00113a030
日期:1991.9
A series of chiral interphenylene 7-oxabicyclo[2.2.1]heptane semicarbazones 19-26 were prepared and evaluated for their in vitro thromboxane (TxA2) antagonistic activity and in vivo duration of action. The potency of 19-26 was found to highly dependent on the substitution pattern of the interphenylene ring and decreased in the order ortho greater than meta much greater than para. SQ 35,091 (25), [1S-(1
制备了一系列手性联苯间7-氧杂双环[2.2.1]庚烷半咔唑酮19-26,并对其体外血栓烷(TxA2)拮抗活性和体内作用时间进行了评估。发现19-26的效力高度依赖于亚间苯环的取代模式,并且以大于间位大于邻位的顺序降低。SQ 35,091(25),[1S-(1 alpha,2 alpha,3 alpha,4 alpha)]-2-[[3-[[[[((苯基氨基)羰基]肼基]甲基] -7-氧杂双环[2.2.1 [庚基-2-基]甲基]苯丙酸被鉴定为有效且长效的TxA2拮抗剂。在富含人血小板的血浆中,SQ 35,091抑制了花生四烯酸(800 microM)和U-46,619(10 microM)诱导的聚集,I50值分别为3和12 nM。相反,大于1000 microM时未观察到对ADP(20 microM)诱导的聚集的抑制。用[3H] -SQ 29,548进行的受体结合研究表明,SQ 35,091是