申请人:A. H. Robins Company, Inc.
公开号:US04610819A1
公开(公告)日:1986-09-09
A process for the preparation of 1,4-oxazepinones and thiones having the formula: ##STR1## wherein A is an aromatic ring selected from benzene, naphthalene, quinoline or pyridine; n is 1 to 3; Z is an amino radical; R is hydrogen, loweralkyl, cycloalkyl or phenylloweralkyl; and R.sup.4 and R.sup.5 are hydrogen and loweralkyl starting from chloroaromatic carboxylates and alkanolamines is disclosed.
本发明涉及一种制备具有以下公式的1,4-噁唑烷酮和硫醚的方法:##STR1##其中A是从苯、萘、喹啉或吡啶中选择的芳香环;n为1至3;Z为氨基基团;R为氢、低碳基、环烷基或苯基低碳基;R.sup.4和R.sup.5为氢和低碳基。该方法从氯代芳香羧酸酯和脂肪醇胺出发。