71.
    发明专利
    未知

    公开(公告)号:DE1770973A1

    公开(公告)日:1972-01-13

    申请号:DE1770973

    申请日:1968-07-25

    Applicant: HOECHST AG

    Abstract: 1275807 Urethane FARBWERKE, HOECHST AG 24 July 1969 [25 July 1968] 37297/69 Heading C2C The novel urethane of Formula I is prepared by reacting a reactive derivative, e.g. a halide or active ester, of the carbonic semiester of Formula II with 2-piperidinoethylamine. The compound I may be converted into an acid addition salt by reaction with an acid. Cinnamyl p-nitrophenyl carbonate is prepared by reacting cinnamyl alcohol with chlorocarbonic acid p-nitrophenyl ester. Pharmaceutical compositions having a local anaesthetic action comprise the compound I, or a non-toxic acid addition salt thereof, in conjunction with an inert carrier.

Patent Agency Ranking