Atorvastatin Epoxy Tetrahydrofuran Analog (USP)

Chemical Name:  4-(4-Fluorophenyl)-2,4-dihydroxy-2-isopropyl-N,5-diphenyl-3,6-dioxabicyclo [3.1.0]hexane-1-carboxamide (as per USP) ; (1E,2E,4E,5E)-4-(4-fluorophenyl)-2,4-dihydroxy-N,5-diphenyl-2-(propan-2-yl)-3,6-dioxabicyclo[3.1.0]hexane-1-carboxamide

Synonym:  Atorvastatin Dihydroxy Epoxy Impurity

Smile: O=C(NC1=CC=CC=C1)C2(O3)C(O)(C(C)C)OC(C4=CC=C(F)C=C4)(O)C23C5=CC=CC=C5