申请人:Merck & Co., Inc.
公开号:US04376767A1
公开(公告)日:1983-03-15
Novel pharmaceutically useful derivatives of selected known bio-affecting carboxylic acids are disclosed, said derivatives having the structural formula ##STR1## wherein R.sub.1 and R.sub.2, which can be the same or different, are each hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, phenyl, or substituted phenyl having one or more substituents each of which is selected from the group consisting of C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, chloro and dialkylamino wherein the alkyl portions, which can be the same or different, each have 1 to 5 carbon atoms, with the proviso that when R.sub.1 is alkoxy or alkylthio, then R.sub.2 cannot be alkoxy or alkylthio; X and X', which can be the same or different, are each hydrogen, C.sub.1 -C.sub.5 alkyl, carboxy, C.sub.2 -C.sub.6 alkoxycarbonyl, halo, C.sub.1 -C.sub.5 alkoxy, dialkylcarbamyl wherein the alkyl portions, which can be the same or different, each have 1 to 5 carbon atoms, phenyl, or substituted phenyl the pyridyl ring is oriented such that it is attached to the ##STR2## portion of the molecule via a carbon-carbon bond; and R-COO- is the acyloxy residue of a monocarboxylic acid; a steroidal monocarboxylic acid; or a cephalosporin or penicillin antibiotic.
本发明揭示了选定的已知生物影响羧酸的新型药物有用衍生物,该衍生物具有结构式:##STR1##其中,R.sub.1和R.sub.2可以相同也可以不同,分别为氢、C.sub.1-C.sub.5烷基、C.sub.1-C.sub.5烷氧基、C.sub.1-C.sub.5烷硫基、苯基或取代苯基,所述取代基中的每一个基被选择自C.sub.1-C.sub.5烷基、C.sub.1-C.sub.5烷氧基、氯和二烷基氨基,其中烷基部分可以相同也可以不同,每个具有1至5个碳原子,但当R.sub.1为烷氧基或烷硫基时,R.sub.2不能为烷氧基或烷硫基;X和X'可以相同也可以不同,分别为氢、C.sub.1-C.sub.5烷基、羧基、C.sub.2-C.sub.6烷氧羰基、卤素、C.sub.1-C.sub.5烷氧基、二烷基氨基羰基,其中烷基部分可以相同也可以不同,每个具有1至5个碳原子,苯基或取代苯基中的吡啶环定向使其通过碳-碳键连接到分子的##STR2##部分;而R-COO-是单羧酸的酰氧残基;类固醇单羧酸;或头孢菌素或青霉素类抗生素。