申请人:Nishino Shigeyoshi
公开号:US20050080262A1
公开(公告)日:2005-04-14
A process for producing a quinazolin-4-one compound having the formula:
[wherein R
1
, R
2
, R
3
and R
4
each represents a group not participating in the below-mentioned reaction, and R
1
, R
2
, R
3
and R
4
can be combined together to form a ring] which comprises reacting an anthranilic acid derivative having the formula:
[wherein R
5
is a hydrogen atom or a hydrocarbyl group] with a formic acid derivative in the presence of an ammonium carboxylate.
一种生产具有以下公式的喹唑啉-4-酮化合物的方法:[其中R1,R2,R3和R4各代表不参与下述反应的基团,并且R1,R2,R3和R4可以组合在一起形成一个环],包括在铵羧酸存在下,将具有以下公式的蒽酰氨衍生物与甲酸衍生物反应:[其中R5是氢原子或烃基]。