1-Butanol → 2-(n-Propyl)amino-4-(4-hydroxypiperidin-1-yl)-7-methyl-pyrrolo[2,3-d]pyrimidine

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Reaction Steps

2-(n-Propyl)amino-4-chloro-7-methyl-pyrrolo[2,3-d]pyrimidine (CXXIV) (1.6 g, 7.1 mmol) was added to n-butanol (10 mL) followed by potassium carbonate (4.9 g, 35.5 mmol) and piperidin-4-ol hydrochloride (632 mg, 10.7 mmol). The mixture was stirred in an autoclave equipped with a stirrer at 130° C. for 16 h. After cooling to room temperature, water was added (20 mL), and the mixture was extracted with EtOAc (3×50 mL). The combined organic layers were washed with water and then with a brine solution, and dried over anhydrous Na2SO4. The solvents were removed in vacuo and the residue was purified by flash column chromatography (pet ether/EtOAc=3/1) to yield 2-(n-propyl)amino-4-(4-hydroxypiperidin-1-yl)-7-methyl-pyrrolo[2,3-d]pyrimidine (1.2 g, 75%) as a yellow solid. LCMS (ESI) m/z=290 (M+H)+.

Provenance & Evidence