申请人:American Home Products Corporation
公开号:US04686213A1
公开(公告)日:1987-08-11
Indole derivatives characterized by having a 1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic acid nucleus bearing a substituent in position 1 and 4. The nucleus may be optionally substituted at position 8. The derivatives are useful anti-inflammatory and analgesic agents and methods and chemical intermediates for their preparation are also disclosed. Included are compounds of the formula ##STR1## wherein R.sup.1 is --H or lower alkyl containing 1 to 3 carbon atoms; R.sup.2 is --NH.sub.2, --NHCHO, --NHCONH.sub.2, --OCH.sub.3, oxo; R.sup.3 is --H or lower alkyl containing 1 to 3 carbon atoms and the pharmaceutically acceptable salts thereof when R.sup.1 is --H.
吲哚衍生物的特征是具有1,3,4,9-四氢吡喃[3,4-b]吲哚-1-乙酸核,核上带有1和4位取代基。核可以在8位位置选择性地取代。这些衍生物是有用的抗炎和镇痛剂,还公开了它们的制备方法和化学中间体。包括下述式的化合物:其中R.sup.1为--H或含有1至3个碳原子的较低烷基;R.sup.2为--NH.sub.2、--NHCHO、--NHCONH.sub.2、--OCH.sub.3、氧代;R.sup.3为--H或含有1至3个碳原子的较低烷基,当R.sup.1为--H时,其药用盐也包括在内。