Hydrochloric Acid → 5-{7-(azetidin-3-yl)-2-[(3S)-3-methylmorpholin-4-yl]-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl}pyrimidin-2-amine dihydrochloride

Participants

Reaction Steps

To a solution of tert-butyl 3-{4-(2-aminopyrimidin-5-yl)-2-[(3S)-3-methylmorpholin-4-yl]-5,6-dihydro-7H-pyrrolo[2,3-d]pyrimidin-7-yl}azetidine-1-carboxylate (760 mg, 1.62 mmol) in methanol (8 mL), was added 4 N HCl in 1,4-dioxane (8 mL, 32 mmol). The reaction was stirred at room temperature for 1 h. The mixture was diluted with toluene and the solvent was removed under reduced pressure to give a foamy residue. The residue was triturated in acetone to get a free flowing tan solid which was collected by filtration to give the title compound in quantitative yield. The material was taken directly in the next step without purification. 1H NMR (400 MHz, CD3OD) δ 8.78 (br s, 2 H), 5.32 (br s, 1 H), 4.62 (br s, 3 H), 4.34 (br s, 2 H), 4.19-3.99 (m, 4 H), 3.85-3.72 (m, 2 H), 3.64-3.46 (m, 2 H), 3.23 (br s, 2 H), 1.41 (d, J=5.5 Hz, 3 H).

Provenance & Evidence