申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US04567187A1
公开(公告)日:1986-01-28
Novel carbostyril derivatives and their salts having antihistaminic effect and central nervous system controlling effect and are useful as antihistaminic agents and central nervous system controlling agents, represented by the general formula (1), ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group, a phenyl-lower alkyl group, a lower alkenyl group, a lower alkynyl group; A is a group of the formula ##STR2## or a group of the formula ##STR3## (wherein R.sup.2 is a hydrogen atom or a lower alkyl group); B is a lower alkylene group; l is 1 when A is a group of the formula ##STR4## or l is 0 or 1 when A is a group of the formula ##STR5## Z is a group of the formula ##STR6## (wherein R.sup.3 is a substituted-phenyl group having 1 to 3 substituents, on the phenyl ring, selected from the group consisting of a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkoxy-carbonyl group, a carboxyl group, a lower alkylthio group, a lower alkanoyl group, a hydroxyl group, a nitro group, an amino group and a cyano group; or R.sup.3 is a substituted-phenyl group having a lower alkylenedioxy group as the substituent, a phenyl-lower alkyl group or a 1,2,3,4-tetrahydronaphthyl group; R.sup.4 is a substituted-phenyl group having 1 to 3 substituents, on the phenyl group, selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group; or R.sup.4 is a substituted-phenyl group having a lower alkylenedioxy group as the substituent, a phenyl-lower alkyl group, a 1,2,3,4-tetrahydronaphthyl group or a group of the formula ##STR7## R.sup.5 is a hydrogen atom, a hydroxyl group or a lower alkanoyl group; or when R.sup.5 is a hydrogen atom the carbon-carbon bond between 3- and 4-positions in the piperidine ring is a double bond which is dehydrogenated the hydrogen atoms bonded at 3- and 4-positions of piperidine ring; the carbon-carbon bond between 3- and 4-positions in the carbostyril skeleton is a single or double bond. The carbostyril derivatives of the present invention have antihistaminic effects and central nervous system controlling effects and are useful for antihistaminic agents and central nervous system controlling agents.
具有抗
组胺作用和中枢神经系统调节作用的新型羧基
苯基
吡啶衍生物及其盐,可用作抗
组胺剂和中枢神经系统调节剂,其一般式表示为(1),其中R1是
氢原子、较低的烷基、
苯基较低的烷基、较低的
烯基、较低的炔基;A是公式(2)的基团或公式(3)的基团(其中R2是
氢原子或较低的烷基);B是较低的烷基链;当A为公式(4)的基团时,l为1,或当A为公式(5)的基团时,l为0或1;Z是公式(6)的基团(其中R3是
苯环上具有1至3个取代基的取代
苯基,所述取代基从卤原子、较低的烷基、较低的烷
氧基、较低的烷
氧羰基、羧基、较低的烷
硫基、较低的烷酰基、羟基、硝基、
氨基和
氰基中选择;或R3是具有较低的烷基二
氧基基团的取代
苯基、
苯基较低的烷基或
1,2,3,4-四氢萘基;R4是
苯基上具有1至3个取代基的取代
苯基,所述取代基从卤原子、较低的烷基和较低的烷
氧基中选择;或R4是具有较低的烷基二
氧基基团的取代
苯基、
苯基较低的烷基、
1,2,3,4-四氢萘基或公式(7)的基团;R5是
氢原子、羟基或较低的烷酰基;或当R5是
氢原子时,
哌啶环上3-和4-位置之间的
碳-
碳键为
脱氢的双键,3-和4-位置的
氢原子
脱离;在羧基
苯基
吡啶骨架中3-和4-位置之间的
碳-
碳键为单键或双键。本发明的羧基
苯基
吡啶衍生物具有抗
组胺作用和中枢神经系统调节作用,并可用作抗
组胺剂和中枢神经系统调节剂。