申请人:ABBOTT LABORATORIES
公开号:EP0333020A2
公开(公告)日:1989-09-20
A process for the preparation of the substituted pyridines 2,6-dihydroxy-3-cyano-5-fluoropyridine, 2,6-dihydroxy-3-acetyl-5-fluoropyridine, 2,6-dichloro-3-cyano-5-fluoropyridine, 2,6-dichloro-5-fluoronicotinamide and 2,6-dichloro-5-fluoronicotinic acid.
一种制备 2,6-二羟基-3-氰基-5-氟吡啶、2,6-二羟基-3-乙酰基-5-氟吡啶、2,6-二氯-3-氰基-5-氟吡啶、2,6-二氯-5-氟烟酰胺和 2,6-二氯-5-氟烟酸的取代吡啶的工艺。