申请人:Imperial Chemical Industries Limited
公开号:US04268514A1
公开(公告)日:1981-05-19
The disclosure relates to xanthene derivatives which possess analgesic activity, to processes for the manufacture of said derivatives and to pharmaceutical compositions containing them. Typical of the xanthene derivatives disclosed is 6-chloro-4-hydroxy-1'-methylxanthene-9-spiro-4'-piperidine.
本公开涉及具有镇痛活性的苯并吩嗪衍生物,以及制造该衍生物的过程和含有它们的药物组合物。本公开披露的苯并吩嗪衍生物的典型代表是6-氯-4-羟基-1'-甲基苯并吩嗪-9-螺-4'-哌啶。