[EN] A GENERAL PROCESS FOR THE PREPARATION OF 6-SUBSTITUTED OR 5,6-DISUBSTITUTED DERIVATIVES OF 2-AMINO-ISONICOTINIC ACID<br/>[FR] PROCÉDÉ GÉNÉRAL DE PRÉPARATION DE DÉRIVÉS D'ACIDE 2-AMINO-ISONICOTINIQUE 6-SUBSTITUÉS OU 5,6-DISUBSTITUÉS
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2017001670A1
公开(公告)日:2017-01-05
This invention relates to a novel synthetic method for the preparation of 6-substituted or 5,6-disubstituted derivatives of 2-amino-isonicotinic acid.