4-Toluenesulfonyl chloride → HCID 89870710, compound

Participants

Reaction Conditions

Reaction Steps

DIPEA (105 μl) and tosyl chloride (56 mg) were added to a solution of (2S,4S)-tert-butyl 4-(4-amino-5-((3,5-dimethoxyphenyl)ethynyl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2-(2-(2-(dimethylamino)acetyl)hydrazine carbonyl)pyrrolidine-1-carboxylate (100 mg) obtained in Step 1 in acetonitrile (3 ml), and the mixture was stirred at 40° C. for 1 hour. Ethyl acetate and water were added to the reaction mixture to separate the organic layer. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The resulting residue was purified by silica gel column chromatography (developing solvent: chloroform/methanol) to obtain the title compound as a light-yellow, amorphous substance (40.5 mg). Physical properties: m/z [M+H]+ 589.2

Provenance & Evidence