p-Toluenesulfonic acid → n2-(2-Isopropoxy-5-methyl-4-(1-methylpiperidin-4-yl)phenyl)-n4-(2-(isopropylsulfonyl)phenyl)pyrazolo[1,5-a][1,3,5]triazine-2,4-diamine

Participants

Reaction Conditions

Reaction Steps

To a suspension of N-(2-(isopropylsulfonyl)phenyl)-2-(methysulfonyl)pyrazolo[1,5-a][1,3,5]triazin-4-amine (0.5 mmol) in 1 mL of isopropanol, was added 2-isopropoxy-5-methyl-4-(1-methylpiperidin-4-yl)aniline (0.5 mmol) and 4-methylbenzenesulfonic acid (1 mmol). The suspension was stirred at 150° C. for 3 hours. After cooling at RT and work-up, the residue was purified using a preparative HPLC to afford N2-(2-isopropoxy-5-methyl-4-(1-methylpiperidin-4-yl)phenyl)-N4-(2-(isopropylsulfonyl)phenyl)pyrazolo[1,5-a][1,3,5]triazine-2,4-diamine. 1H NMR (MeOD, 400 MHz) δ 8.51-8.54 (d, 1H), 7.94-8.04 (m, 2H), 7.35-7.47 (m, 3H), 6.90 (s, 1H), 6.34-6.35 (d, 1H), 4.54-4.60 (m. 1H), 3.82-3.85 (m, 2H), 3.23-3.30 (m, 1H), 2.91-3.01 (m, 6H), 2.25-2.33 (m, 5H), 2.03-2.06 (m, 2H), 1.33-1.35 (d, 6H), 1.26-1.28 (d, 6H); MS (ES+); 578.28 (M+1)+.

Provenance & Evidence