Diisopropylethylamine → 3-[5-Cyano-6-[(2,2-dimethyl-propyl)-methyl-amino]-2-(pyrrolidin-3-ylamino)-pyrimidin-4-ylamino]-N-methoxy-4-methyl-benzamide

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3-{5-Cyano-6-[(2,2-dimethyl-propyl)-methyl-amino]-2-methanesulfinyl-pyrimidin-4-ylamino}-N-methoxy-4-methyl-benzamide (33 mg) and 1-N-Boc-3-(R)-aminopyrrolidine (30 mg), DIEA (0.2 mL) and p-dioxane (2 mL) were heated in a sealed tube at 75° C. for overnight. After the removal of the solvent in vacuo, the product was purified by silica gel column chromatography and treated with TFA/DCM (1:1) in order to remove the Boc-group. The product was then converted to hydrochloride salt by treating it with hydrochloric acid (1 M in ether) (Yield: 20 mg). MS (m/z): 567 (M+H).

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