反应详情

温度

50 °C

To a stirred solution of 1-(4-methoxybenzyl)-3-methyl-5-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrazolo[3,4-b]pyridine (160) in CHCl3 (20 mL) was added trifluoroacetic acid (5 mL) and heated at 50° C. for 12 hours. After completion of the reaction the solvents were removed, diluted with cold water, pH was adjusted to 8 and the aqueous phase extracted with chloroform twice. The organic layer was washed with brine solution and dried over sodium sulphate and the solvent completely distilled off to get the crude product. The crude was passed through 100-200 mesh silica gel, eluting the pure compound in 10% MeOH/CHCl3 as pale yellow solid compound 161 (8 mg).

1. customAfter completion of the reaction the solvents
2. customwere removed
3. additiondiluted with cold water, pH
4. extractionthe aqueous phase extracted with chloroform twice
5. washThe organic layer was washed with brine solution
6. dry with materialdried over sodium sulphate
7. distillationthe solvent completely distilled off