申请人:Abbott Laboratories
公开号:US05491253A1
公开(公告)日:1996-02-13
Intermediates and processes are disclosed which are useful for the preparation of a substantially pure compound of the formula: ##STR1## wherein R.sub.6 and R.sub.7 are each hydrogen or R.sub.6 and R.sub.7 are independently selected from ##STR2## 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 ##STR3## 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 is as defined above and R.sub.7 is R.sub.7a OC(O)--wherein R.sub.7a is loweralkyl or benzyl; or R.sub.6 and R.sub.7 taken together with the nitrogen atom to which they are bonded are ##STR4## wherein R.sub.f, R.sub.g, R.sub.h and R.sub.i are independently selected from hydrogen, loweralkyl, alkoxy, halogen and trifluoromethyl and R.sub.8 is hydrogen or --C(O)R" wherein R" is loweralkyl, alkoxy, benzyloxy or phenyl wherein the phenyl ring is unsubstituted or substituted with one, two or three substituents independently selected from loweralkyl, trifluoromethyl, alkoxy and halo; or an acid addition salt thereof.
揭示了用于制备公式的基本纯化合物的中间体和过程:其中R.sub.6和R.sub.7分别为氢或R.sub.6和R.sub.7分别选择自##其中R.sub.a和R.sub.b分别选择自氢、较低烷基和苯基,R.sub.c、R.sub.d和R.sub.e分别选择自氢、较低烷基、三氟甲基、烷氧基、卤素和苯基;和##其中萘环未取代或取代一个、两个或三个从较低烷基、三氟甲基、烷氧基和卤素中独立选择的取代基;或R.sub.6如上定义,而R.sub.7为R.sub.7a OC(O)--其中R.sub.7a为较低烷基或苄基;或R.sub.6和R.sub.7与它们结合的氮原子一起为##其中R.sub.f、R.sub.g、R.sub.h和R.sub.i分别选择自氢、较低烷基、烷氧基、卤素和三氟甲基,R.sub.8为氢或--C(O)R"其中R"为较低烷基、烷氧基、苄氧基或苯基,苯环未取代或取代一个、两个或三个从较低烷基、三氟甲基、烷氧基和卤素中独立选择的取代基;或其酸加盐。