Thionyl Chloride → HCID 86710737, compound

Participants

Reaction Conditions

Reaction Steps

5-(6-Amino-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-2,4-dimethoxy-benzenesulfonic acid (Example 113) (629 mg, 1.72 mmol) is suspended in thionyl chloride (25 ml), the reaction mixture is heated to 120° C. for 5 hours then stood overnight at room temperature. The resulting precipitate is removed by filtration, the filtrate is concentrated in vacuo and the resulting residue is azeotroped with toluene to afford the title compound as a solid.

Provenance & Evidence