Venetoclax N-Oxide Impurity

Chemical Name: 4-(3-((1H-pyrrolo[2,3-b]pyridin-5-yl)oxy)-4-(((3-nitro-4-(((tetrahydro-2H-pyran-4-yl)methyl)amino)phenyl)sulfonyl)carbamoyl)phenyl)-1-((4'-chloro-5,5-dimethyl-3,4,5,6-tetrahydro-[1,1'-biphenyl]-2-yl)methyl)piperazine 1-oxide

Smile: CC1(C)CCC(C[N+]2([O-])CCN(C3=CC=C(C(NS(=O)(C4=CC=C(NCC5CCOCC5)C([N+]([O-])=O)=C4)=O)=O)C(OC6=CN=C(NC=C7)C7=C6)=C3)CC2)=C(C8=CC=C(Cl)C=C8)C1