Reaction Steps
Compound IA-140 5-(4-isopropylsulfonylphenyl)-3-[5-[5-(methylaminomethyl)-2-thienyl]-1,3,4-oxadiazol-2-yl]pyrazin-2-amine 1H NMR (400 MHz, DMSO) d 1.22 (d, 6H), 2.65 (s, 3H), 3.42-3.46 (m, 1H), 4.5 (s, 2H), 7.5 (d, 1H), 8.0 (d, 1H), 8.05 (d, 1H), 8.4 (d, 1H), 9.05 (br s, 2H) and 9.1 (s, 1H) ppm; MS (ES+) 471.3 Compound IA-226 5-(4-isopropylsulfonylphenyl)-3-[5-[4-(methylaminomethyl)-2-thienyl]-1,3,4-oxadiazol-2-yl]pyrazin-2-amine 1H NMR (400 MHz, MeOD) d 1.4 (d, 6H), 2.8 (s, 3H), 4.4 (s, 2H), 3.3-3.4 (m, 1H), 8.0-8.1 (m, 3H), 8.12 (s, 1H), 8.35 (d, 2H) and 9.0 (s, 1H) ppm; MS (ES+) 471.3 Compound IA-236 3-[5-[5-[(2,2-difluoroethylamino)methyl]-2-thienyl]-1,3,4-oxadiazol-2-yl]-5-(4-isopropylsulfonylphenyl)pyrazin-2-amine 1H NMR (400 MHz, DMSO) d 1.25 (d, 6H), 3.4-3.6 (m, 3H), 4.55 (s, 2H), 6.2-6.5 (m, 1H), 7.5 (d, 1H), 7.8-8.1 (m, 4H), 8.45 (d, 2H) and 9.1 (s, 1H) ppm; MS (ES+) 521.3 Compound IA-248 3-[5-[5-[(isopropylamino)methyl]-2-thienyl]-1,3,4-oxadiazol-2-yl]-5-(4-isopropylsulfonylphenyl)pyrazin-2-amine 1H NMR (400 MHz, DMSO) d 1.25 (m, 6H), 1.35 (d, 6H), 3.4-3.6 (m, 2H), 4.6 (s, 2H), 7.5 (d, 1H), 7.95-8.1 (m, 4H), 8.45 (d, 2H), 8.9-9.0 (br s, 2H) and 9.1 (s, 1H) ppm; MS (ES+) 499.4
