DGV62: Dolutegravir O-Ethyl Impurity

(4R,12aS)-N-(2,4-Difluorobenzyl)-7-ethoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide ;

C22H23F2N3O5 ;
Mol. Wt.: 447.43 ;