N-(3-((4aS,5S,7aS)-2-Amino-5-(fluoromethyl)-4a,5-dihydro-4H-furo(3,4-d)(1,3)thiazin-7a(7H)-yl)-4-fluorophenyl)-5-methoxypyrazine-2-carboxamide
n-(3-((4as,5s,7as)-2-amino-5-(fluoromethyl)-4a,5-dihydro-4h-furo(3,4-d)(1,3)thiazin-7a(7h)-yl)-4-fluorophenyl)-5-methoxypyrazine-2-carboxamide