申请人:Merck & Co., Inc.
公开号:US04067980A1
公开(公告)日:1978-01-10
Quaternary salts of 3,4-dihydrospiro-2H-1,3-benzoxazines are prepared by treating 3,4-dihydrospiro-2H-1,3-benzoxazines with an alkylating agent. The products are antihypertensive agents.
通过用烷基化试剂处理3,4-二氢螺环-2H-1,3-苯并噁嗪,制备了3,4-二氢螺环-2H-1,3-苯并噁嗪的四价盐。这些产物是降压药。