[EN] INTERMEDIATE COMPOUND FOR SYNTHESIZING PHARMACEUTICAL AGENT AND PRODUCTION METHOD THEREOF [FR] COMPOSÉ INTERMÉDIAIRE POUR SYNTHÉTISER UN AGENT PHARMACEUTIQUE ET SON PROCÉDÉ DE PRODUCTION
[EN] INTERMEDIATE COMPOUND FOR SYNTHESIZING PHARMACEUTICAL AGENT AND PRODUCTION METHOD THEREOF [FR] COMPOSÉ INTERMÉDIAIRE POUR SYNTHÉTISER UN AGENT PHARMACEUTIQUE ET SON PROCÉDÉ DE PRODUCTION
INTERMEDIATE COMPOUND FOR SYNTHESIZING PHARMACEUTICAL AGENT AND PRODUCTION METHOD THEREOF
申请人:Furuya Rikizou
公开号:US20120059165A1
公开(公告)日:2012-03-08
A production method of an optically active 2-4-(5-substituted-oxadiazolyl) phenyl}morpholine which is useful as an intermediate for synthesizing a pharmaceutical agent is provided and the method comprises the following steps 1) to 4): 1) reacting a bromophenylmorpholine with a hexacyanoferrate(II) or a hydrate thereof at a temperature of from 110° C. to 140° C. in a reaction mixture comprising a Na
2
CO
3
, an organophosphorus compound, and a palladium catalyst in a polar aprotic solvent alone or combination of a polar aprotic solvent and other polar aprotic solvent or hydrocarbon solvent to give a cyanophenylmorpholine; 2) reacting the cyanophenylmorpholine with hydroxylamine or hydroxylamine hydrochloride at a temperature of from 10° C. to 40° C. in an aprotic polar solvent to give a hydroxylamine derivative; 3) reacting the hydroxylamine derivative with an acylation reagent selected from the group consisting of aliphatic acyl halides, aromatic acyl halides, aliphatic acyl anhydrides and aromatic anhydrides; and 4) keeping the mixture obtained after step 3) at a temperature of from 60° C. to 140° C. to give a 2-4-(5-substituted-oxadiazolyl) phenyl}morpholine.
[EN] INTERMEDIATE COMPOUND FOR SYNTHESIZING PHARMACEUTICAL AGENT AND PRODUCTION METHOD THEREOF<br/>[FR] COMPOSÉ INTERMÉDIAIRE POUR SYNTHÉTISER UN AGENT PHARMACEUTIQUE ET SON PROCÉDÉ DE PRODUCTION