申请人:Abbott Laboratories
公开号:US05672706A1
公开(公告)日:1997-09-30
A process is disclosed for the preparation of the substantially pure compound of the formula: ##STR1## comprising catalytic hydrogenation of a compound of the formula: ##STR2## wherein R.sub.6 and R.sub.7 are independently selected from ##STR3## wherein R.sub.a and R.sub.b are independently selected from hydrogen, loweralkyl and phenyl and R.sub.c, R.sub.d and R.sub.e are independently selected from hydrogen, loweralkyl, trifluoromethyl, alkoxy, halo and phenyl; and ##STR4## wherein the naphthyl ring is unsubstituted or substituted with one, two or three substitutents independently selected from loweralkyl, trifluoromethyl, alkoxy and halo; or R.sub.6 and R.sub.7 taken together with the nitrogen atom to which they are bonded are ##STR5## wherein R.sub.f, R.sub.g, R.sub.h and R.sub.i are independently selected from hydrogen, loweralkyl, alkoxy, halogen and trifluoromethyl; or an acid addition salt thereof.
公开了一种制备公式为的基本纯化合物的方法:##STR1##包括催化氢化具有以下公式的化合物:##STR2##其中R.sub.6和R.sub.7分别选自##STR3##其中R.sub.a和R.sub.b分别选自氢、较低的烷基和苯基,R.sub.c、R.sub.d和R.sub.e分别选自氢、较低的烷基、三氟甲基、烷氧基、卤素和苯基;和##STR4##其中萘环未取代或取代一个、两个或三个独立选自较低的烷基、三氟甲基、烷氧基和卤素的取代物;或R.sub.6和R.sub.7与它们连接的氮原子一起取自##STR5##其中R.sub.f、R.sub.g、R.sub.h和R.sub.i分别选自氢、较低的烷基、烷氧基、卤素和三氟甲基;或其酸加盐。