The present invention is directed to the preparation of novel compounds useful in the treatment of hyperlipidemia, arteriosclerosis, hypercholesterolemia, and other related metabolic disorders. More specifically, the present invention is a novel process for the preparation of 1,4-diphenylazetidinone derivatives from β-substituted amino amides which are protected in the presence of silylating agents and at least one cyclization catalyst whose structural formula is represented by one of the general formula:
Wherein the various R-groups are defined herein
本发明涉及制备用于治疗高脂血症、动脉粥样硬化、高
胆固醇血症和其他相关代谢性疾病的新化合物。具体地,本发明涉及一种从β-取代
氨基酰胺制备1,4-二苯基氮杂环
丙酮衍
生物的新方法,该方法在
硅化剂的存在下保护,并且至少有一个环化催化剂,其结构式由以下一般式之一表示:其中各种R基在此定义。