Chloroacetyl chloride → HCID 178423002, compound

Participants

Reaction Steps

Part A: To a stirred, cooled (0° C.) solution of 110 mg (0.23 mmol) of 1-(2,4,6-trichlorophenyl)-3-isopropyl-6-(3-amino-2-methylbenzyl)pyrazolo[3,4-d]pyrimidin-4-one in 4 mL of THF was added 0.084 mL (0.6 mmol) of triethylamine followed by 0.024 mL (0.3 mmol) of chloroacetyl chloride. The solution was stirred 2 h, warming to ambient temperature. The reaction was quenched by dropwise addition of 5 mL of 0.5 N aq. HCl, and the resulting solid was collected by filtration. The product was washed with water then 1:1 ether-hexanes and air-dried to afford 96 mg (76%) of 1-(2,4,6-trichlorophenyl)-3-isopropyl-6-(3-(chloroacetamido)-2-methyl benzyl)pyrazolo[3,4-d]pyrimidin-4-one, mp 237-238° C. 1H NMR (300 MHz, DMSO) δ 12.42(s, 1H); 9.69(s, 1H); 7.93(s, 2H); 7.15(d, 1H, J=7.3 Hz); 7.07(t, 1H, J=7.7 Hz); 6.95(d, 1H, J=8.7 Hz); 4.25(s, 2H); 3.90(s, 2H); 3.20-3.33(m, 1H); 2.07(s, 3H); 1.30(d, 6H, J=6.9 Hz).

Provenance & Evidence