反应详情

A solution of 2-(4-(4-chloropyrimidin-2-ylamino)-1H-pyrazol-1-yl)-N-isopropylacetamide (120 mg, 0.41 mmol) (II-1, prepared by Procedure D), 4-(aminomethyl)-3,5-difluorobenzonitrile (68 mg, 0.41 mmol) (III-1, prepared by Procedure E) and TsOH (56 mg, 0.33 mmol) in dioxane (2 mL) was heated to 160° C. for 2 h then concentrated in vacuo. The residue was dissolved in ethyl acetate, washed with Na2CO3(aq), dried (Na2SO4), concentrated in vacuo and purified by prep. TLC (5-10% v/v MeOH/DCM) to afford 2-(4-((4-((4-cyano-2,6-difluorobenzyl)amino)pyrimidin-2-yl)amino)-1H-pyrazol-1-yl)-N-isopropylacetamide I-1 (50 mg, 29%) as a white solid. LC-MS (Method A), RT=8.02 min. (ES+) 427.

1. concentrationthen concentrated in vacuo
2. dissolutionThe residue was dissolved in ethyl acetate
3. washwashed with Na2CO3(aq)
4. dry with materialdried (Na2SO4)
5. concentrationconcentrated in vacuo
6. custompurified by prep