Reaction Steps
8-(4-Methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine was prepared from 8-bromo-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (0.75 g, 3.5 mmol) and (4-methylsulfonylphenyl)boronic acid (1.0 g, 5.0 mmol) in a manner analogous to Step 2c. The product was isolated as tan solid (0.60 g, 59%). MP=236-239° C. 1H NMR (400 MHz, (D3C)2SO, δ, ppm): 8.63 (d, J=6.3 Hz, 1H), 8.38 (d, J=7.9 Hz, 2H), 8.03 (d, J=7.9 Hz, 2H), 7.84 (d, J=7.3 Hz, 1H), 7.03 (t, J=7.0 Hz, 1H), 6.21 (br s, 2H), 3.28 (s, 3H). MS=289 (MH)+. 4b) [8-(4-Methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-(4-morpholin-4-yl-phenyl)-amine and [8-(4-methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-phenyl-amine were prepared from 8-(4-methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (100.0 mg, 0.3468 mmol) and 4-(4-bromo-phenyl)-morpholine (100.0 mg, 0.4130 mmol) in a manner analogous to Example 2d. [8-(4-Methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-(4-morpholin-4-yl-phenyl)-amine was isolated as a pale yellow solid (0.063 g, 40%). MP=244-246° C. 1H NMR (400 MHz, CDCl3, δ, ppm): 8.49-8.45 (m, 1H), 8.25-8.20 (m, 2H), 8.11-8.06 (m, 2H), 7.63 (dd, J=7.4, 0.9 Hz, 1H), 7.53-7.48 (m, 2H), 6.99 (t, J=7.0 Hz, 1H), 6.97-6.93 (m, 2H), 6.73 (s, 1H), 3.90-3.86 (m 4H), 3.14-3.09 (m, 7H). MS=450 (MH)+.
