申请人:Roussel Uclaf
公开号:US04636512A1
公开(公告)日:1987-01-13
Novel racemates or optically active forms of 2-amino-4-hydroxy-3-quinoline carboxylic acid derivatives of the formula ##STR1## wherein X is in the 5-, 6-, 7- or 8-position and is selected from the group consisting of hydrogen, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 4 carbon atoms, CF.sub.3 --, CF.sub.3 S-- and CF.sub.3 O--, R.sub.1 is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.2 is selected from the group consisting of (a) thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl, isoxazolyl, imidazolyl, pyrimidyl and tetrazolyl, each optionally substituted with alkyl of 1 to 4 carbon atoms and (b) phenyl optionally substituted with at least one member of the group consisting of hydroxy, alkyl and alkoxy of 1 to 4 carbon atoms, CF.sub.3 --, --NO.sub.2 and halogen, R.sub.3 is selected from the group consisting of 2-pyrrolidinyl of the formula ##STR2## R.sub.4 is selected from the group consisting of hydrogen, an amino protective group and ##STR3## R'4 is selected from the group consisting of alkyl 1 to 5 carbon atoms optionally substituted with amino or protected amino, aryl and aralkyl, R.sub.5 is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, aryl, aralkyl, p-hydroxy-benzyl, lH-indol-3-yl methyl of the formula and --CH.sub.2 SH, the last three being optionally protected by a blocking group and their non-toxic, pharmaceutically acceptable acid addition salts having analgesic and anti-inflammatory activity and novel intermediates.
化合物的光学异构体或外消旋体,其化学式为##STR1##其中X位于5-,6-,7-或8-位,选择自氢、卤素、1至5个碳原子的烷基、1至4个碳原子的烷氧基、CF.sub.3-,CF.sub.3S-和CF.sub.3O-的群,R.sub.1选择自氢和1至4个碳原子的烷基,R.sub.2选择自(a)噻唑基、4,5-二氢噻唑基、吡啶基、噁唑基、异噁唑基、咪唑基、嘧啶基和四唑基,每个基都可以选择性地用1至4个碳原子的烷基取代,和(b)苯基,可以选择性地用1至4个碳原子的羟基、烷基和烷氧基、CF.sub.3-、--NO.sub.2和卤素中的至少一种成员取代,R.sub.3选择自公式##STR2##的2-吡咯烷基,R.sub.4选择自氢、氨基保护基和##STR3##,R'4选择自1至5个碳原子的烷基,可以选择性地用氨基或保护氨基取代,芳基和芳基烷基,R.sub.5选择自氢、1至5个碳原子的烷基、芳基、芳基烷基、p-羟基苯甲基、1H-吲哚-3-基甲基的公式和--CH.sub.2SH,最后三个可以选择性地由阻断基保护,以及其无毒、药学上可接受的酸盐,具有镇痛和抗炎活性,以及新的中间体。