Revefenacin Dimer Impurity 4

Chemical Name: 1-(2-(4-((4-(((4-((2-(4-(([1,1'-biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl) (methyl)carbamoyl)phenyl)(hydroxy)methyl)carbamoyl)piperidin-1-yl)methyl)-N-methylbenzamido) ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate

Smile: O=C(OC1CCN(CCN(C)C(C2=CC=C(CN3CCC(C(NC(C4=CC=C(C(N(CCN5CCC(OC(NC6=CC=CC=C6C7=CC=CC=C7)=O)CC5)C)=O)C=C4)O)=O)CC3)C=C2)=O)CC1)NC8=CC=CC=C8C9=CC=CC=C9