Atorvastatin acetonide tert-butyl ester is a useful pharmaceutical intermediate in the preparation of Atorvastatin salts. Atorvastatin is an orally active HMG-CoA reductase inhibitor and has the ability to effectively decrease blood lipids[1].
[1]. Process for preparing amorphous (4r-cis)-6-[2-[3-phenyl-4-(phenylcarbamoyl)-2-(4-fluorophenyl)-5-(1-methylethyl)-pyrrol-1-yl]-ethyl]-2,2-dimethyl-[1,3]-dioxane-4-yl-acetic acid. WO2005063741A1.