反应详情

(2-Chloro-[1,2,4]triazolo[1,5-a]pyridin-8-yl)-(2-methanesulfonyl-benzyl)-amine was prepared from 8-bromo-2-chloro-[1,2,4]triazolo[1,5-a]pyridine (470.0 mg, 2.022 mmol) and 2-methanesulfonyl-benzylamine; hydrochloride (500.0 mg, 2.255 mmol) in a manner analogous to Example 2d. Product isolated as a yellow solid (0.45 g, 66%). MP=161-163° C. 1H NMR (400 MHz, CDCl3, δ, ppm): 8.11 (d, J=7.6 Hz, 1H), 7.92 (d, J=6.6 Hz, 1H), 7.64-7.60 (m, 2H), 7.56-7.51 (m, 1H), 6.88 (t, J=7.5 Hz, 1H), 6.53 (d, J=7.8 Hz, 1H), 5.43 (t, J=5.9 Hz, 1H), 4.98 (d, J=6.1 Hz, 2H), 3.15 (s, 3H). MS=337, 339 (MH)+. 138b) N(8)-(2-Methanesulfonyl-benzyl)-N(2)-[4-(4-methyl-piperazin-1-yl)-phenyl]-[1,2,4]triazolo[1,5-a]pyridine-2,8-diamine was prepared from (2-chloro-[1,2,4]triazolo[1,5-a]pyridin-8-yl)-(2-methanesulfonyl-benzyl)-amine (75.0 mg, 0.223 mmol) and 4-(4-methyl-piperazin-1-yl)-phenylamine (47.0 mg, 0.246 mmol) with 2,2′-bis-dicyclohexylphosphanyl-biphenyl (25.0 mg, 0.0457 mmol) as the ligand in a manner analogous to Example 2d. Product isolated as a tan foam (0.035 g, 32%). 1H NMR (400 MHz, CDCl3, δ, ppm): 8.11 (d, J=7.9 Hz, 1H), 7.84 (d, J=6.5 Hz, 1H), 7.67-7.59 (m, 2H), 7.55-7.50 (m, 1H), 7.47 (d, J=8.8 Hz, 2H), 6.96 (d, J=8.9 Hz, 2H), 6.68 (t, J=7.3 Hz, 1H), 6.55 (s, 1H), 6.41 (d, J=7.7 Hz, 1H), 5.19 9t, J=6.1 Hz, 1H), 4.96 (d, J=6.1 Hz, 2H), 3.20-3.14 (m, 7H), 2.69-2.58 (m, 4H), 2.39 (s, 3H). MS=492 (MH)+.