Antiinflammatory 2-substituted-1H-phenanthro(9,10-d)imidazoles, their preparation and pharmaceutical compositions containing them
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0011115A1
公开(公告)日:1980-05-28
Novel 2-substituted -1H-phenanthro [9,10-d]imidazoles of the formula
wherein n preferably is 2; R, preferably CF, of CF2CF2H; R2 preferably is H; X, and Y, preferably are independently selected from the group consisting of H, F, Cl and OCH;, provided, however, that both cannot be H; X2 and Y2 preferably are H; are useful as antiinflammatory agents.
Processes for their preparation are described. E.g.4,5-bis (4-fluorophenyl)imidazole by photocyclization gave 6,9-difluoro-1 H-phenanthro [9,10-d]imidazole; this compound by treating with sulfur in sulfolane gave 6,9-difluoro -1H-phenanthro [9,10-d]imidazole -2-thiol; this compound by addition of tetrafluoroethylene gave 6,9-difluoro-2- [(1,1,2,2, -tetrafluoroethyl)thio] -1H-phenenthro [9,10-d] imidazole; and this compound was oxidized using m-chloroperoxybenzoic acid to give 6,9-difluoro-2- [1,1,2,2, -tetrafluoroethyl) sulfonyl] -1H-phenanthro [1,10-d] imidazole.
式中的新型 2-取代-1H-菲啰并[9,10-d]咪唑
其中 n 优选为 2;R,优选为 CF2CF2H 的 CF;R2 优选为 H;X 和 Y 优选独立地选自 H、F、Cl 和 OCH 组成的组,但两者不能均为 H;X2 和 Y2 优选为 H;这些化合物可用作抗炎剂。
本文介绍了制备它们的工艺。例如,4,5-双(4-氟苯基)咪唑通过光环化反应得到 6,9-二氟-1H-菲啰并[9,10-d]咪唑;该化合物通过在磺烷中用硫处理得到 6,9-二氟-1H-菲啰并[9,10-d]咪唑-2-硫醇;该化合物加入四氟乙烯后得到 6,9-二氟-2-[(1,1,2,2, -四氟乙基)硫基]-1H-菲咯[9,10-d]咪唑;该化合物经间氯过氧苯甲酸氧化后得到 6,9-二氟-2-[1,1,2,2, -四氟乙基)磺酰基]-1H-菲咯[1,10-d]咪唑。