申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US04435404A1
公开(公告)日:1984-03-06
Novel carbostyril derivative and its salt represented by the general formula (1), ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a phenyl-lower alkyl group; R.sup.2 is a hydrogen atom, a lower alkyl group or a group of the formula ##STR2## wherein A is a lower alkylene group; R.sup.3 is a lower alkyl group, a hydroxy lower alkyl group, a lower alkoxy-lower alkyl group, a lower alkanoyloxy-lower alkyl group or a benzoyloxy-lower alkyl group; and R.sup.4 is a C.sub.3-10 -cycloalkyl group which may have at least one hydroxyl group as the substituent(s) in the cycloalkyl ring, a C.sub.3-10 -cycloalkyl-lower alkyl group, a phenyl group, a phenyl-lower alkyl group which may have at least one lower alkoxy group as the substituent(s) in the phenyl ring, a lower alkyl group which may have at least one hydroxyl group as the substituent(s), a heterocyclic ring residue or a lower alkyl group having one heterocyclic ring residue as the substituent; further, R.sup.3, R.sup.4 and the adjacent nitrogen atom, as well as with or without another nitrogen atom, may form a group of the formula ##STR3## (wherein R.sup.5 is a phenyl group, a C.sub.3-10 -cycloalkyl group or a phenyl-lower alkyl group; and B is a methine group or a nitrogen atom); the carbon-carbon bond between the 3- and 4-positions in the carbostyril skeleton is a single or double bond; the substituted position of the group of the formula ##STR4## is any one of 5-, 6-, 7- or 8-position in the carbostyril skeleton; when the group of the formula ##STR5## is substituted at 5-, 6-, 7- or 8-position in the carbostyril skeleton, then R.sup.2 is a hydrogen atom or a lower alkyl group; alternatively, when R.sup.2 is a group of the formula ##STR6## then 5-, 6-, 7- and 8-positions in the carbostyril skeleton are hydrogen atoms and are not substituted with groups of the formula ##STR7## and when R.sup.3 is a lower alkyl group, then R.sup.4 should be neither of a C.sub.3-10 -cycloalkyl group, a C.sub.3-10 -cycloalkyl-lower alkyl group nor a lower alkyl group, having effects for preventing and treating thrombosis and embolism.
新型的卡波司吡衍生物及其盐,其通式为(1),其中R1为氢原子、低碳基、低烯基或苯基-低碳基;R2为氢原子、低碳基或公式A的基团:##STR2## 其中A为低碳亚烷基基团;R3为低碳基、羟基-低碳基、低烷氧基-低碳基、低脂肪酸酯基-低碳基或苯甲酰氧-低碳基;R4为C3-10环烷基,该环烷基上可能具有至少一个羟基作为取代基,或C3-10环烷基-低碳基、苯基、苯基-低碳基,该苯基上可能具有至少一个低碳氧基作为取代基,或低碳基,该低碳基上可能具有至少一个羟基作为取代基,或杂环环残基或低碳基,该低碳基上具有一个杂环环残基作为取代基;此外,R3、R4和相邻的氮原子,以及有或没有另一个氮原子,可以形成公式的基团:##STR3## 其中R5为苯基、C3-10环烷基或苯基-低碳基;B为甲基基团或氮原子;在卡波司吡骨架中,3-和4-位置之间的碳-碳键是单键或双键;公式的基团的取代位置为卡波司吡骨架中的5-、6-、7-或8-位置之一;当公式的基团在卡波司吡骨架的5-、6-、7-或8-位置上取代时,R2为氢原子或低碳基;或者当R2为公式的基团时,卡波司吡骨架的5-、6-、7-和8-位置均为氢原子,并且没有公式的基团取代;当R3为低碳基时,R4不应是C3-10环烷基、C3-10环烷基-低碳基或低碳基,具有预防和治疗血栓和栓塞的作用。