申请人:American Home Products Corporation
公开号:US04914243A1
公开(公告)日:1990-04-03
Process for the production of 2-alkoxy or aryl(lower)alkoxy-6-methoxy-1-naphthalenecarboxaldehyde chemical intermediates by demethylating 2,6-dimethoxy-1-naphthalenecarboxaldehyde with a nucleophilic sulfide reagent at the 2-position and reacting the resulting phenolate salt with an alkylating reagent. Said aldehydes are themselves intermediates for the manufacture of compounds which inhibit aldose reductase and are useful for the treatment of diabetic complications.
通过使用亲核硫化物试剂在2位上脱甲基化2,6-二甲氧基-1-萘甲醛,并将产生的苯酚盐与烷基化试剂反应,制备2-烷氧基或芳基(较低)烷氧基-6-甲氧基-1-萘甲醛化学中间体的生产过程。这些醛本身是制造抑制醛糖还原酶的化合物的中间体,并且对于治疗糖尿病并发症非常有用。