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是氢、C.sub.1-C.sub.6烷基、C.sub.2-C.sub.6羧基烷基或苯基,所述苯基被C.sub.1-C.sub.3烷基或卤素取代;R.sup.2是氢或C.sub.1-C.sub.6烷基;而R.sup.3和R.sup.4相同或不同,分别是氢、C.sub.1-C.sub.3烷基、C.sub.1-C.sub.3烷氧基或卤素,但有条件,如果R.sup.2、R.sup.3和R.sup.4是氢,则R.sup.1不是甲基、正丙基或苯基,所述苯基被甲基取代于邻位或对位位置;如果R.sup.1、R.sup.2和R.sup.3是氢,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。这些化合物表现出降脂作用。本发明还涉及一种用具有上述结构式的化合物治疗哺乳动物高血脂症的方法,其中R.sup.1是氢、C.sub.1-C.sub.6烷基、C.sub.2-C.sub.6羧基烷基、C.sub.2-C.sub.6羧基烷氧基、苯基或苯基被C.sub.1-C.sub.3烷基或卤素取代;R.sup.2是氢或C.sub.1-C.sub.6烷基;而R.sup.3和R.sup.4相同或不同,分别是氢、C.sub.1-C.sub.3烷基、C.sub.1-C.sub.3烷氧基或卤素。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是氢、C.sub.1-C.sub.6烷基、C.sub.2-C.sub.6羧基烷基、C.sub.2-C.sub.6羧基烷氧基、苯基或苯基被C.sub.1-C.sub.3烷基或卤素取代;R.sup.2是氢或C.sub.1-C.sub.6烷基;而R.sup.3和R.sup.4相同或不同,分别是氢、C.sub.1-C.sub.3烷基、C.sub.1-C.sub.3烷氧基或卤素,以及其药学可接受的载体。