申请人:Ciba-Geigy Corporation
公开号:US04737496A1
公开(公告)日:1988-04-12
The invention relates to 1,3,4,16b-tetrahydro-2H,10H-indolo[2,1-c]pyrazino[1,2-a][1,4]benzodiazepin e derivatives of the formula I, ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, C.sub.3-7 -alkenyl, C.sub.3-7 -alkynyl, 3 to 7 ring-membered cycloalkyl, C.sub.2-7 -alkyl substituted by a substituent selected from hydroxy, amino, N-mono-lower alkyl-amino and N,N-di-lower alkyl-amino; or R.sup.1 is lower alkyl substituted by a substituent selected from 3 to 7 ring-membered cycloalkyl, carboxy, lower alkoxycarbonyl, carbamoyl, N-mono-lower alkyl-carbamoyl, N,N-di-lower alkyl-carbamoyl and lower alkanoyl; or R.sup.1 is lower alkyl substituted by either phenyl or benzoyl each of said phenyl or benzoyl radicals being unsubstituted or substituted by up to three members selected from lower alkyl, lower alkoxy, lower alkylthio, halogen and trifluoromethyl; R.sup.2 and R.sup.3 represent hydrogen, lower alkyl, hydroxy, lowr alkoxy, halogen or trifluoromethyl; and R.sup.4 represents hydrogen, lower alkyl, hydroxy-lower alkyl, carboxy, lower alkoxycarbonyl, carbamoyl, N-mono- or N,N-di-lower alkyl-carbamoyl, or formyl; salts and 2N-oxides; which are useful as serotonin-2 receptor antagonists.
本发明涉及式I的1,3,4,16b-四氢-2H,10H-吲哚[2,1-c]吡唑[1,2-a][1,4]苯并二氮平衍生物,其中R1为氢、较低的烷基、C3-7-烯基、C3-7-炔基、3-7环成员的环烷基、C2-7-烷基,所述烷基被从羟基、氨基、N-单较低烷基氨基和N,N-二较低烷基氨基中选择的取代基取代;或者R1是被从3-7环成员的环烷基、羧基、较低的烷氧羰基、氨基甲酰基、N-单较低烷基氨甲酰基、N,N-二较低烷基氨甲酰基和较低的烷酰中选择的取代基取代的较低的烷基;或者R1是被苯基或苯甲酰基取代的较低的烷基,所述苯基或苯甲酰基的每个基团均为未取代或被选自较低的烷基、较低的烷氧基、较低的烷硫基、卤素和三氟甲基的三个成员取代;R2和R3代表氢、较低的烷基、羟基、较低的烷氧基、卤素或三氟甲基;R4代表氢、较低的烷基、羟基较低的烷基、羧基、较低的烷氧羰基、氨基甲酰基、N-单或N,N-二较低烷基氨甲酰基或甲酰基;盐和2N-氧化物;它们作为5-羟色胺2受体拮抗剂是有用的。