申请人:Research Corporation
公开号:US04861778A1
公开(公告)日:1989-08-29
A compound having the structural formula ##STR1## wherein R.sup.1 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 carbalkoxyalkyl or phenyl substituted with C.sub.1 -C.sub.3 alkyl or halogen; R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; and R.sup.3 and R.sup.4 are the same or different and are hydrogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy or halogen with the provisos that if R.sup.2, R.sup.3 and R.sup.4 are hydrogen, then R.sup.1 is not methyl, n-propyl or phenyl substituted with methyl in the ortho or para position; if R.sup.1, R.sup.2 and R.sup.3 are hydrogen then R.sup.4 is not hydrogen, methyl or methoxy; and if R.sup.1 and R.sup.2 are both n-propyl or n-butyl then R.sup.3 and R.sup.4 are not both hydrogen. These compounds demonstrate utility as hypolipidemic agents. The present invention is also directed to a process for controlling hyperlipidemia in mammals comprising treating mammals with a hyperlipidemia controlling effective amount of a compound having the above-identified structural formula wherein R.sup.1 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 carboxyalkyl, C.sub.2 -C.sub.6 carbalkoxyalkyl, phenyl or phenyl substituted with C.sub.1 -C.sub.3 alkyl or halogen; R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; and R.sup.3 and R.sup.4 are the same or different and are hydrogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy or halogen. Yet another aspect of the present invention is embodied in a pharmaceutical composition comprising a compound having the above structural formula wherein R.sup.1 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 carboxyalkyl, C.sub.2 -C.sub.6 carbalkoxyalkyl, phenyl or phenyl substituted with C.sub.1 -C.sub.3 alkyl or halogen; R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; and R.sup.3 and R.sup.4 are the same or different and are hydrogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy or halogen and a pharmaceutically acceptable carrier therefor.
一种具有结构式##STR1##的化合物,其中R.sup.1为氢,C.sub.1-C.sub.6烷基,C.sub.2-C.sub.6羧烷基烷基或苯基,该苯基被C.sub.1-C.sub.3烷基或卤素取代;R.sup.2为氢或C.sub.1-C.sub.6烷基;而R.sup.3和R.sup.4相同或不同,分别为氢,C.sub.1-C.sub.3烷基,C.sub.1-C.sub.3烷氧基或卤素,但有以下限制:如果R.sup.2,R.sup.3和R.sup.4为氢,则R.sup.1不是甲基,正丙基或在邻位或对位取代了甲基的苯基;如果R.sup.1,R.sup.2和R.sup.3为氢,则R.sup.4不是氢,甲基或甲氧基;如果R.sup.1和R.sup.2均为正丙基或正丁基,则R.sup.3和R.sup.4不是同时为氢。这些化合物表现出作为降脂药物的效用。本发明还涉及一种治疗哺乳动物高脂血症的方法,包括使用上述结构式中R.sup.1为氢,C.sub.1-C.sub.6烷基,C.sub.2-C.sub.6羧烷基烷基,C.sub.2-C.sub.6羧酸酯基烷基,苯基或被C.sub.1-C.sub.3烷基或卤素取代的苯基;R.sup.2为氢或C.sub.1-C.sub.6烷基;而R.sup.3和R.sup.4相同或不同,分别为氢,C.sub.1-C.sub.3烷基,C.sub.1-C.sub.3烷氧基或卤素的化合物的治疗剂量。本发明的另一个方面体现在一种制药组合物中,该组合物包括具有上述结构式的化合物,其中R.sup.1为氢,C.sub.1-C.sub.6烷基,C.sub.2-C.sub.6羧烷基烷基,C.sub.2-C.sub.6羧酸酯基烷基,苯基或被C.sub.1-C.sub.3烷基或卤素取代的苯基;R.sup.2为氢或C.sub.1-C.sub.6烷基;而R.sup.3和R.sup.4相同或不同,分别为氢,C.sub.1-C.sub.3烷基,C.sub.1-C.sub.3烷氧基或卤素,以及其药学上可接受的载体。