Synthesis of some impurities and/or degradation products of atorvastatin

J Stach, J Havlíček, L Plaček…

Index: Stach, Jan; Havlicek, Jaroslav; Placek, Lukas; Radl, Stanislav Collection of Czechoslovak Chemical Communications, 2008 , vol. 73, # 2 p. 229 - 246

Full Text: HTML

Citation Number: 14

Abstract

Abstract Synthesis of some impurities and/or degradation products of atorvastatin, calcium (3R, 5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl) pyrrol-1-yl]-3, 5- dihydroxyheptanoate, is described. These include its desfluoro analog, the corresponding (3S, 5S)-and (3S, 5R)-epimers, atorvastatin lactone, and some other potential impurities. The synthesized compounds as well as the corresponding intermediates were ...