Avanafil Impurity 16

Chemical Name: 4-((3-chloro-4-methoxybenzyl)amino)-2-((S)-2-(((4-((3-chloro-4-methoxybenzyl)amino)-2-((S)-2-(hydroxymethyl)pyrrolidin-1-yl)pyrimidine-5-carbonyl)oxy)methyl)pyrrolidin-1-yl)pyrimidine-5-carboxylic acid

Smile: ClC1=C(OC)C=CC(CNC2=NC(N3[C@H](COC(C4=CN=C(N5[C@H](CO)CCC5)N=C4NCC6=CC(Cl)=C(OC)C=C6)=O)CCC3)=NC=C2C(O)=O)=C1