Atorvastatin epoxy Pyrrolooxazin 7-hydroxy Analog Impurity
Atorvastatin IMP 1b-(4-Fluorophenyl)hexahydro-β,7-dihydroxy-7-(1-methylethyl)-1a-phenyl-7a-[(phenylamino)carbonyl]-3H-oxireno[3,4]pyrrolo[2,1-b][1,3]oxazine-3-butanoic Acid Sodium