METHOD FOR PRODUCING PITAVASTATIN CALCIUM

摘要

According to the present invention, pitavastatin calcium is safely produced at low cost with high yield and high selectivity in an industrial scale. This method for producing pitavastatin calcium is characterized by comprising a step (i) for obtaining a compound represented by general formula (3) through acetalization of a compound represented by general formula (1), a step (ii) for obtaining a compound represented by general formula (4) by reacting the compound represented by general formula (3) with an acid, and a step (iii) for hydrolyzing the compound represented by general formula (4), followed by reaction with a calcium compound.