申请人:Lewenstein; Evalina
公开号:US04004025A1
公开(公告)日:1977-01-18
Novel compounds constituting esters of benzoic acids, selected from the group consisting of p-vinyl benzoic acid and p-ethynyl benzoic acid, with an aminoethanol selected from the group consisting of diethylaminoethanol and N-substituted aminoethanols. The esters have the formula ##STR1## where X is selected from the group consisting of ##STR2## or HC.tbd.C and each of R.sub.1 and R.sub.2 is selected from the group consisting of H, lower alkyls containing up to 6 carbon atoms and cycloalkyls. The novel compounds also include inorganic and organic acid salts of said esters. The novel compounds have a unique medicinal function as local subcutaneously-applied anesthetics which have a long-acting effect when administered without vasoconstrictors that heretofore have been used to prevent rapid dissipation of subcutaneously-applied local anesthetics. The invention also embraces compositions containing the compounds and the method of using the novel compounds and compositions as local long-acting subcutaneously-applied anesthetics.
新型化合物包括苯甲酸酯,选自p-乙烯基苯甲酸和p-乙炔基苯甲酸,与氨基乙醇选自二乙胺基乙醇和N-取代氨基乙醇。酯类化合物的化学式为##STR1##其中X选自##STR2##或HC.tbd.C,R.sub.1和R.sub.2各自选自H,含有最多6个碳原子的低碳烷基和环烷基。该新型化合物还包括所述酯的无机和有机酸盐。这些新型化合物作为局部皮下应用麻醉剂具有独特的药用功能,当不使用迄今用于防止皮下应用局部麻醉剂快速消散的血管收缩剂时,具有长效作用。该发明还涵盖含有这些化合物和使用这些新型化合物和组合物作为局部长效皮下应用麻醉剂的方法。