IUPAC:(4S,4aR,6R,8aS)-8a-(2,4-difluorophenyl)-4-(fluoromethyl)-6-(3-methyl-1,2-oxazol-5-yl)-4H,4aH,5H,6H,8H,8aH-pyrano[3,4-d][1,3]thiazin-2-amine
IUPAC:(4S,4aR,6R,8aS)-8a-(2,4-difluorophenyl)-4-(fluoromethyl)-6-(3-methyl-1,2-oxazol-5-yl)-4H,4aH,5H,6H,8H,8aH-pyrano[3,4-d][1,3]thiazin-2-amine