1 SI6 (4ar,6r,8as)-8a-(2,4-difluorophenyl)-6-(1h-pyrazol-4-yl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-D][1,3]thiazin-2-amine 1.000 2 SI5 (4ar,6r,8as)-8a-(2,4-difluorophenyl)-6-(1-methyl-1h-pyrazol-4-yl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-D][1,3]thiazin-2-amine 0.960 3 3VO (4ar,8as)-8a-(2,4-difluorophenyl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-D][1,3]thiazin-2-amine 0.792 4 3VP (4ar,6r,8as)-8a-(2,4-difluorophenyl)-6-(fluoromethyl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-D][1,3]thiazin-2-amine 0.731