PURPOSE: A method for preparing chiral intermediates for producing atorvastatin is provided to cheaply and commercially prepare the atorvastatin.CONSTITUTION: A method for preparing pyrrole compounds of chemical formula I comprises: a step of performing addition reaction of a compound of chemical formula II with a compound of chemical formula III to prepare a compound of chemical formula IV a step o f hydrolyzing the compound of chemical formula IV under a base condition to prepare a compound of chemical formula V and a step of condensing the compound of chemical formula V.COPYRIGHT KIPO 2012본 발명은 아토르바스타틴의 제조를 위한 키랄 중간체를 고수율 및 고순도로 온화하고 간단하게 제조하는 방법 및 이를 이용하여 고순도의 아토르바스타틴을 경제적으로 상업적 규모로 제조하는 방법에 관한 것이다.
