Dolutegravir Impurity B

Chemical Name: (4R,​12aR)​-N-​[(2,​4-Difluorophenyl)​methyl]​-​3,​4,​6,​8,​12,​12a-​hexahydro-​7-​hydroxy-​4-​methyl-​6,​8-​dioxo-​2H-pPyrido[1’,​2’:4,​5]​pyrazino[2,​1-​b]​[1,​3]​oxazine-​9-​carboxamide

Synonym: Dolutegravir RR Isomer ;

Smile: O=C(N([C@@H]1C)[C@@](OCC1)([H])CN2C=C(C(NCC(C=CC(F)=C3)=C3F)=O)C4=O)C2=C4O