[EN] PROCESS FOR THE PREPARATION OF SUBSTITUTED OCTANOYL AMIDES<br/>[FR] PROCEDE DE FABRICATION D'OCTANOYLAMIDES SUBSTITUES
申请人:SPEEDEL PHARMA AG
公开号:WO2002008172A1
公开(公告)日:2002-01-31
Compounds of formula (XII), are simultaneously halogenated in the 5 position and hydroxylated in the 4 position under lactonization, the halolactone is reacted with an amine to form a carboxamide, the halogen is replaced with azide, if necessary after the introduction of a hydroxy protecting group, the resulting azide is converted to a lactone, the lactone is amidated and then the azide converted to the amine group, in order to obtain compounds of formula (I) or a salt thereof.