Dolutegravir Impurity 1

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

Synonym: (4R,12aS)-N-[(2,4-difluoro phenyl)methyl]-4-methyl-6,8-dioxo-7-(phenylmethoxy)--3,4,6,8, 12,12a-hexahydro-2H-pyrido [1’,2’: 4,5] pyrazino [2,1-b][1,3]oxazine-9-carboxamide ; Phenyl methoxy Dolutegravir