Pilocarpine EP Impurity A

Chemical Name: (3R,4R)-3-ethyl-4-[(1-methyl-1H-imidazol-5-yl)methyl]dihydrofuran-2(3H)-one

Synonym: 5-Chloro-N2-(4-(1-(5-chloro-4-((2-(isopropylsulfonyl)phenyl)amino)pyrimidin-2-yl)piperidin-4-yl)-2-isopropoxy-5-methylphenyl)-N4-(2-(isopropylsulfonyl)phenyl)pyrimidine-2,4-diamine

Smile: CN1C=NC=C1C[C@@]([C@]2(CC)[H])([H])COC2=O