METHOD FOR SYNTHESIZING ATORVASTATIN CALCIUM INTERMEDIATE BY USING MULTI-COMPONENT ONE-POT METHOD
申请人:Zhejiang Hongyuan Pharma Co., Ltd
公开号:EP3984991A1
公开(公告)日:2022-04-20
The present disclosure provides a method for multicomponent one-pot synthesis of an intermediate of atorvastatin calcium. In particular, the present disclosure provides a method for multicomponent one-pot synthesis of 4-(4-fluorophenyl)-2-(2-methylpropionyl)-3-phenyl-4-oxoN-phenylbutanamide, characterized in that the target compound is synthesized by reacting N-phenylphenylpropynamide with 4-fluorobenzaldehyde and isobutyraldehyde under the action of a catalyst of Cu(SbF6)2 and a Pd-ligand by a one-pot process. This one-pot process is in line with the characteristics of green chemistry and high-atom economy, significantly reduces the emissions of the three-waste and pollution factors, and has fewer reaction steps and a yield (about 80% to 87%) significantly higher than the yield of the existing multi-step synthesis technical solutions. It uses easily available raw materials, has simple process operations, a low risk in EHS, and high industrial practicability.
本公开提供了一种多组分一次合成阿托伐他汀钙中间体的方法。具体而言,本发明提供了一种多组分一锅法合成4-(4-氟苯基)-2-(2-甲基丙酰基)-3-苯基-4-氧代N-苯基丁酰胺的方法,其特征在于:在Cu(SbF6)2催化剂和Pd配体的作用下,通过一锅法使N-苯基苯丙酰胺与4-氟苯甲醛和异丁醛反应合成目标化合物。该一锅法符合绿色化学和高原子经济性的特点,大大减少了三废排放和污染因素,反应步骤少,收率(约 80% 至 87%)明显高于现有的多步合成技术方案。它使用容易获得的原材料,工艺操作简单,EHS 风险低,工业实用性强。