申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:US20150239855A1
公开(公告)日:2015-08-27
An object of the present invention is to provide a novel method for producing an oxazole compound. The invention relates to a method for producing a compound represented by formula (1): wherein R
1
is lower alkyl group or halogen substituted lower alkyl group, R
2
is lower alkyl group, R
5
is lower alkyl group, R
11
is lower alkyl group, halogen substituted lower alkyl group or a group represented by formula: —CY
2
COOR
12
, wherein Y is a halogen atom, R
12
is an alkali metal atom or lower alkyl group, Ar
1
is phenyl group substituted with lower alkyl group, etc., or pyridyl group substituted with lower alkyl group, etc., X
2
, X
3
and X
9
are the same or different and are halogen atoms, X
4
is a leaving group, and M is an alkali metal atom.
本发明的目的是提供一种生产噁唑化合物的新方法。本发明涉及一种生产由式(1)表示的化合物的方法:其中R1是较低的烷基或卤代较低的烷基,R2是较低的烷基,R5是较低的烷基,R11是较低的烷基,卤代较低的烷基或由式子表示的基团:—CY2COOR12,其中Y是卤素原子,R12是碱金属原子或较低的烷基,Ar1是苯基,其上取代有较低的烷基等,或吡啶基,其上取代有较低的烷基等,X2、X3和X9相同或不同,均为卤素原子,X4是离去基团,M是碱金属原子。