Linagliptin Nitroso Dimer Impurity 1

Chemical Name: N-(2-(2-((8-((R)-3-aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)methyl)quinazolin-4-yl)ethyl)-N-((R)-1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)nitrous amide

Synonym: Nitroso impurity of LMP Dimer

Smile: O=NN(CCC1=C2C=CC=CC2=NC(CN3C(N(C)C4=C(N(CC#CC)C(N5C[C@H](N)CCC5)=N4)C3=O)=O)=N1)[C@H]6CN(C(N7CC#CC)=NC(N(C)C(N8CC9=NC%10=CC=CC=C%10C(C)=N9)=O)=C7C8=O)CCC6