Process for preparing for imidazopyran derivatives
申请人:Otera Junzo
公开号:US20060063929A1
公开(公告)日:2006-03-23
A novel process for preparing imidazopyran derivatives of the formula:
wherein R
1
is halogen atom, hydrogen atom, C
1
to C
3
alkyl group, aryl group, or aryl group substituted by C
1
to C
3
alkyl group, by using dinitroimidazole and 2,3-epoxy-1-propanol as starting materials and being followed by five steps.