申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US04734416A1
公开(公告)日:1988-03-29
Carbostyril derivatives having antihistamic action and central nervous controlling action are useful as antihistamic agents or central nervous controlling agents. The derivatives are represented by the general formula, ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, an alkynyl group having 2 to 4 carbon atoms or a phenylalkyl group having an alkylene group containing 1 to 4 carbon atoms; R.sup.2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a phenyl group; R.sup.3 is a hydrogen atom, a hydroxy group, an alkyl group having 1 to 4 carbon atoms, an alkanolyoxy group having 1 to 4 carbon atoms or a 3,4,5-trimethoxybenzoyloxy group; R.sup.4 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; R.sup.5 is a cycloalkyl group having 3 to 8 carbon atoms, a phenyl group (which may have 1 to 3 substituted groups selected from the group consisting of halogen atoms, alkyl groups having 1 to 4 carbon atoms and alkoxy groups having 1 to 4 carbon atoms), an alkyl group having 1 to 4 carbon atoms (having one substituted group such as a hydroxy group, a phenyl group or an alkanoyloxy group having 1 to 4 carbon atoms), an alkanoyl group having 1 to 4 carbon atoms or benzoyl group; X is a halogen atom; n is 0, or an integer of 1 or 2; Q is an integer of 2 or 3, l and m are respectively an integer of 0 or 1-6, but the sum of l and m should not exceed 6; the carbon-carbon bond at the 3- and 4-positions in the carbostyril skeleton is a single or double bond; and the substituted position of the side chain of ##STR2## is any one of the 4-, 5-, 6-, 7- or 8-positions.
具有抗组胺作用和中枢神经控制作用的羧基苯基丙氨酸衍生物可用作抗组胺剂或中枢神经控制剂。该衍生物由以下通式表示:##STR1##其中R.sup.1是氢原子,具有1至6个碳原子的烷基,具有2至4个碳原子的烯基,具有2至4个碳原子的炔基或具有含有1至4个碳原子的烷基的苯基烷基;R.sup.2是氢原子,具有1至4个碳原子的烷基或苯基;R.sup.3是氢原子,羟基,具有1至4个碳原子的烷基,具有1至4个碳原子的烷氧基或3,4,5-三甲氧基苯甲酰氧基;R.sup.4是氢原子或具有1至4个碳原子的烷基;R.sup.5是具有3至8个碳原子的环烷基,苯基(可以有1至3个取自卤素原子,具有1至4个碳原子的烷基和具有1至4个碳原子的烷氧基的取代基),具有1至4个碳原子的烷基(具有一个取代基,如羟基,苯基或具有1至4个碳原子的烷酰氧基),具有1至4个碳原子的烷酰基或苯甲酰基;X是卤素原子;n为0或1或2的整数;Q为2或3的整数,l和m分别为0或1-6的整数,但l和m的总和不应超过6;羧基苯基丙氨酸骨架中3-和4-位置的碳-碳键为单键或双键;以及##STR2##的侧链的取代位置为4-、5-、6-、7-或8-位置中的任何一个。