METHOD FOR PRODUCING PYRAZOLE FUSED RING DERIVATIVE
申请人:Eisai R&D Management Co., Ltd.
公开号:EP2202233A1
公开(公告)日:2010-06-30
Disclosed is a commercially advantageous method for producing a pyrazole fused ring derivative (such as a 7-phenylpyrazolo[1,5-a]pyridine derivative). Specifically disclosed is a method for producing a compound (I) represented by the formula (I) below or a salt thereof, which comprises a step A wherein a hydroxy group in a compound (IV) represented by the formula (IV) below is converted into a methoxy group, thereby obtaining a compound (I) or a salt thereof: