Diisopropylethylamine → 3-{1-[(3,5-dimethylphenyl)acetyl]-2,3-dihydro-1H-indol-5-yl}-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Participants

Reaction Steps

In a 20 mL vial with cap, to the solution of 3-(2,3-dihydro-1H-indol-5-yl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine 2HCl (70 mg, 0.206 mmol), (3,5-dimethylphenyl)acetic acid (31.0 mg, 0.206 mmol), HATU (78 mg, 0.206 mmol) in DMF (2 mL) was added Hunig's base (0.144 mL, 0.825 mmol). The mixture was stirred at rt for over night. LCMS showed reaction was completed. The reaction was poured into water, white solid formed. The white solid was filtered to give the product. The final product has about 0.7 equivalent of DMF. LC/MS (ES) m/z=413.3 [M+H]+1H NMR (400 MHz, DMSO-d6) δ ppm 2.26 (s, 6H), 3.23 (s, 2H), 3.79 (s, 2H), 3.93 (s, 3H), 4.21 (s, 2H), 6.88-6.95 (m, 3H), 7.45 (s, 1H), 7.49 (s, 1H), 8.20 (d, J=8.34 Hz, 1H), 8.24 (s, 1H).

Provenance & Evidence