Elagolix Nitroso Impurity

Chemical Name: (R)-4-((2-(5-(2-Fluoro-3-methoxyphenyl)-3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-dioxo-3,6-dihydropyrimidin-1(2H)-yl)-1-phenylethyl)(nitroso)amino)butanoic acid

Smile: CC(N(CC1=C(C(F)(F)F)C=CC=C1F)C2=O)=C(C(N2C[C@@H](C3=CC=CC=C3)N(N=O)CCCC(O)=O)=O)C4=C(F)C(OC)=CC=C4