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.
卡波司酯衍生物具有抗组胺作用和中枢神经控制作用,可用作抗组胺剂或中枢神经控制剂。这些衍生物由通式所代表,其中R.sup.1是氢原子、具有1至6个碳原子的烷基基团、具有2至4个碳原子的烯基基团、具有2至4个碳原子的炔基基团或含有1至4个碳原子的烷基基团的苯基基团;R.sup.2是氢原子、具有1至4个碳原子的烷基基团或苯基团;R.sup.3是氢原子、羟基、具有1至4个碳原子的烷基基团、具有1至4个碳原子的烷酰氧基团或3,4,5-三甲氧基苯甲酰氧基团;R.sup.4是氢原子或具有1至4个碳原子的烷基基团;R.sup.5是具有3至8个碳原子的环烷基基团、苯基(可能有1至3个卤素原子、具有1至4个碳原子的烷基基团和具有1至4个碳原子的烷氧基团中选择的取代基)、具有1至4个碳原子的烷基基团(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团)、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至6的整数,但l和m的总和不应超过6;卡波司酯骨架中3-位和4-位的碳-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-位中的任意一个。