Isopropanol → HCID 11256634, compound

Participants

Reaction Conditions

Reaction Steps

In a disposable sealed tube was added 2-(2-Amino-6-chloro-5-formyl-pyrimidin-4-ylamino)-N-(3-trifluoromethyl-phenyl)-acetamide (96.0 mg, 0.25 mmol, 1.0 eq.), isopropanol (2.0 mL), and hydrazine monohydrate (0.02 mL, 0.35 mmol, 1.4 eq.). The reaction was sealed and heated to 80° C. After 2 hrs, the reaction was spiked with 0.01 mL of hydrazine monohydrate, resealed, and allowed to continue stirring at 80° C. overnight. The reaction was then cooled to RT and the resulting yellow precipitate was filtered and rinsed with cold EtOH to give crude 2-(6-amino-1H-pyrazolo[3,4-d]pyrimidin-4-ylamino)-N-(3-trifluoromethyl-phenyl)-acetamide. The crude precipitate was then sonicated in 1.0 mL H2O, filtered, rinsed with an additional 1 mL H2O, and lyophilized overnight to give pure 2-(6-amino-1H-pyrazolo[3,4-d]pyrimidin-4-ylamino)-N-(3-trifluoromethyl-phenyl)-acetamide as a pale yellow solid (30 mg, 34%). LC/MSD (HP Series 1100 MSD): Expected MW: 351, Observed M+H, 352.1, Retention time: 1.19 min. ANALYTICAL HPLC: >90%, Retention time: 3.58 min (8 minute run). 1H-NMR (d6-DMSO): 12.5 (br s, 1H), 10.42 (s, 1H), 8.15 (s, 1H), 7.80 (m, 2H), 7.59 (t, 1H), 7.41 (d, 1H), 6.01 (br s, 2H), 4.40 (rotamer d, 2H) ppm.

Provenance & Evidence