[EN] PROCESS FOR PREPARING ALKYL ESTERS OF 4-(5-(BIS(2-HYDROXYETHYL) AMINO)-1-METHYL-1H-BENZO[D]IMIDAZOL-2-YL)BUTYRIC ACID<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ESTERS D'ALKYLE DE 4-(5-(BIS(2-HYDROXYÉTHYL) AMINO)-1-MÉTHYLE-1H-BENZO[D]IMIDAZOL-2-YL) ACIDE BUTYRIQUE
申请人:JOHNSON MATTHEY PLC
公开号:WO2014140878A1
公开(公告)日:2014-09-18
An alkyl ester of 4-(5-(bis(2-hydroxyethyl)amino)-l-methyi-lW- benzo[d]imidazol-2-yl)butyric acid, such as ethyl 4-(5-(bis(2-hydroxyethyl)amino)-l- methyl-lW-benzo[d]imidazol-2-yl)butanoate, is obtained by reacting an alkyl ester of 4- (5-amino-l-methyl-lW-benzo[d]imidazol-2-yl)butyric acid with 2-hydroxyacetaldehyde under reducing conditions.
一种4-(5-(双(2-羟乙基)氨基)-1-甲基-1H-苯并[d]咪唑-2-基)丁酸的烷基酯,例如乙酸乙酯4-(5-(双(2-羟乙基)氨基)-1-甲基-1H-苯并[d]咪唑-2-基)丁酸酯,通过将4-(5-氨基-1-甲基-1H-苯并[d]咪唑-2-基)丁酸的烷基酯在还原条件下与2-羟基乙醛反应得到。