申请人:Leo Pharmaceutical Products Ltd. A/S (L.o slashed.vens Kemiske Fabrik
公开号:US05563160A1
公开(公告)日:1996-10-08
The present invention relates to hitherto unknown compounds of formula or their tautomeric forms, the attachment to the pyridine ring being in the 3- or 4-position, in which R', R" are the same or different and stand for hydrogen, halogen, or trifluoromethyl, hydroxy, C.sub.1 -C.sub.4 alkyl or alkoxy, nitro, or cyano groups. Alkylene stands for a straight or branched C.sub.1 -C.sub.8 carbon chain, which may be substituted by hydroxy or halogen, nitro or cyano groups. X stands for oxygen, for --S(O).sub.n -- where n stands for an integer from 0 to 2, or for .dbd.N--R.sub.1 where R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl. R stands for hydrogen or for one or more C.sub.1 -C.sub.4 alkyl or alkoxy, hydroxy, halogen, trifluoromethyl, cyano, carboxamido, sulfamoyl or nitro radicals. The present compounds are of value in the human and veterinary practice as selective serotonin receptor antagonists.
本发明涉及式或其互变异构体的迄今未知的化合物,其附着在吡啶环的3位或4位,其中R',R"相同或不同,代表氢,卤素或三氟甲基,羟基,C.sub.1-C.sub.4烷基或烷氧基,硝基或氰基。Alkylene代表直链或支链C.sub.1-C.sub.8碳链,可以被羟基或卤素,硝基或氰基取代。X代表氧,代表--S(O).sub.n--,其中n为0至2的整数,或代表.dbd.N--R.sub.1,其中R.sub.1为氢或C.sub.1-C.sub.4烷基。R代表氢或一个或多个C.sub.1-C.sub.4烷基或烷氧基,羟基,卤素,三氟甲基,氰基,羧酰胺基,磺酰胺基或硝基基团。这些化合物在人类和兽医实践中作为选择性5-羟色胺受体拮抗剂具有价值。