申请人:SmithKline Beecham Corporation
公开号:US06103936A1
公开(公告)日:2000-08-15
The present invention is to a novel process for the preparation of a compound of the formula: ##STR1## wherein p is 0, or 2; Ar is an optionally substituted phenyl or naphtyl; and inter alia R4 is an optionally susbtituted phenyl, naphth-1-yl, naphth-2-yl, or a heteroaryl ring; which process comprises reacting together an aldehyde of the formula: R.sub.4 --CHO; wherein R.sub.4 is as defined above; a compound of the formula: ArS(O)pH; wherein Ar, and p are as defined above; with formamide, an acid catalyst, and optionally a dehydrating agent.
本发明涉及一种新颖的制备式化合物的方法:##STR1## 其中p为0或2;Ar为可选择取代的苯基或萘基;且R4为可选择取代的苯基、萘-1-基、萘-2-基或杂环环;该方法包括将式为R4-CHO的醛、式为ArS(O)pH的化合物(其中Ar和p如上所定义)、甲酰胺、酸催化剂和可选择的脱水剂反应。