Bictegravir Impurity 1

Chemical Name: (2S,5R,13aS)-8-hydroxy-7,9-dioxo-N-(2,4,6-trifluorobenzyl)-2,3,4,5,7,9,13,13a-octahydro-2,5-methanopyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazepine-10-carboxamide

Smile: O=C1N([C@@](CC2)([H])C[C@@]2([H])O3)[C@]3([H])CN(C=C(C(NCC(C(F)=CC(F)=C4)=C4F)=O)C5=O)C1=C5O