Reaction Steps
5-{4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl}[1,2,4]triazolo[1,5-a]pyridin-2-amine was prepared from 5-bromo-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (368 mg, 1.73 mmol) and 4-[(4-boronophenyl)methyl]-thiomorpholine 1,1-dioxide (0.512 mg, 1.90 mmol), in a manner analogous to Step 73c. The residue was purified on a 12 g Isco silica gel column using a gradient of 0-15% methanol in dichloromethane as an eluent. 5-{4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl}[1,2,4]triazolo[1,5-a]pyridin-2-amine (490 mg, 79%) was isolated as a beige foam. 1H NMR (400 MHz, (D3C)2SO, δ, ppm): 7.93 (d, J=8.5 Hz, 2H), 7.50 (m, 3H), 7.37 (d, J=7.8 Hz, 1H), 7.07 (d, J=7.8 Hz, 1H), 6.02 (s, 2H), 3.78 (s, 2H), 3.15 (s, 4H), 2.91 (s, 4H). MS=358 (MH)+. 95b) 5-{4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl}[1,2,4]triazolo[1,5-a]pyridin-2-amine (50 mg, 0.140 mmol) and 1-bromo-4-methoxy benzene (29 mg, 0.154 mmol) were combined in a manner analogous to Example 77 to yield 5-{4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl}-N-(4-methoxyphenyl)[1,2,4]triazolo[1,5-a]pyridin-2-amine (28 mg, 42%) as a beige solid. The material was purified via trituration with methanol. MP=241° C. 1H NMR (400 MHz, (D3C)2SO, δ, ppm): 9.37 (s, 1H), 8.03 (d, J=8.1 Hz, 2H), 7.51-7.67 (m, 6H), 7.17 (d, J=6.4 Hz, 1H), 6.85 (d, J=8.6 Hz, 2H), 3.80 (s, 2H), 3.69 (s, 3H), 3.15 (br s, 4H), 2.92 (br s, 4H). MS=464 (MH)+.
