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To a solution of [4-amino-2-(piperidin-4-ylamino)-pyrimidin-5-yl]-(2-methoxy-phenyl)-methanone trifluoroacetic acid salt (66.3 mg, Example 11) in methylene chloride (3 mL) were added triethylamine (0.09 mL, 0.617 mmol, Aldrich) and methanesulfonyl chloride (8.9 mg, 0.0774 mmol, Aldrich) at 0° C. After stirring for 0.5 to 1 hour at 0° C., the reaction mixture was concentrated in vacuo and crude product was purified on silica gel with 95:5 of dichloromethane/methanol to give [4-Amino-2-(1-methanesulfonyl-piperidin-4-ylamino)-pyrimidin-5-yl]-(2-methoxy-phenyl)-methanone (19.2 mg). HRMS, observed: 406.1546; Calcd for (M+H)+: 406.1544.

1. concentrationthe reaction mixture was concentrated in vacuo and crude product
2. customwas purified on silica gel with 95:5 of dichloromethane/methanol