申请人:The Upjohn Company
公开号:US04000153A1
公开(公告)日:1976-12-28
Intermediates of the formula VI: ##STR1## wherein R is hydrogen or alkyl of 1 to 3 carbon atoms, inclusive, wherein R.sub.2 is hydrogen, fluoro, or chloro; wherein R.sub.3 is hydrogen or fluoro with the proviso that R.sub.3 is not fluoro, if R.sub.2 is chloro; wherein R.sub.4 is hydrogen, fluoro, chloro, bromo, trifluoromethyl, or nitro; and wherein X is chloro, bromo, or iodo, are produced by a multistep process. The compounds VI serve as intermediates for final compounds which are tranquilizers and sedatives and as such useful in mammals and birds.
VI式的中间体:##STR1## 其中R为氢或1至3个碳原子的烷基,其中R.sub.2为氢,氟或氯;其中R.sub.3为氢或氟,但前提是如果R.sub.2为氯,则R.sub.3不是氟;其中R.sub.4为氢,氟,氯,溴,三氟甲基或硝基;其中X为氯,溴或碘,由多步骤的过程产生。化合物VI用作最终化合物的中间体,这些最终化合物是镇静剂和镇痛剂,在哺乳动物和鸟类中有用。