[EN] PROCESS FOR PREPARING BENZOTHIAZEPINES FROM GAMMA-AMINOALKYLBENZENES<br/>[FR] PROCÉDÉ POUR PRÉPARER DES BENZOTHIAZÉPINES À PARTIR DE GAMMA-AMINOALKYLBENZÈNES
申请人:ARMGO PHARMA INC
公开号:WO2009111463A1
公开(公告)日:2009-09-11
The invention provides a process for preparing a 2,3,4,5-tetrahydro[1,4]benzothiazepine of formula: [I] by reacting a [2-(acylaminoethyl)thio]arene of formula [II] with an aldehyde or a multimer thereof, and with an acid. The invention also provides for first reacting the [2-(acylaminoethyl)thio]arene with the aldehyde or multimer thereof and a base to form an [N-hydroxymethyl-2-[acylaminoethyl)thio]arene of formula [III]; then treating the [N-hydroxymethyl-2-(acylaminoethyl)thio]arene with the acid to form the 2,3,4,5-tetrahydro[1,4]benzothiazepine.
本发明提供了一种制备式为[I]的2,3,4,5-四氢[1,4]苯并噻吩的方法,该方法通过将式[II]的[2-(酰胺基乙基)硫]芳烃与醛或其多聚物以及酸反应而得到。本发明还提供首先将[2-(酰胺基乙基)硫]芳烃与醛或其多聚物以及碱反应以形成式[III]的[N-羟甲基-2-(酰胺基乙基)硫]芳烃;然后用酸处理[N-羟甲基-2-(酰胺基乙基)硫]芳烃以形成2,3,4,5-四氢[1,4]苯并噻吩。