4-Hydroxymethylpyridine → 2-pyridylmethyl N-[4-(4-amino-7-tetrahydro-2H-4-pyranyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-2-methoxyphenyl]carbamate

Phenyl N-[4-(4-amino-7-tetrahydro-2H-4-pyranyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-2-methoxyphenyl]carbamate (30 mg, 0.065 mmol) was mixed 4-pyridylmethanol (0.05 mL) in pyridine (0.5 mL). The reaction mixture was heated at 100° C. overnight. The solvent was removed and the residue was purified by preparative reverse phase LC/MS to give 2-pyridylmethyl N-[4-(4-amino-7-tetrahydro-2H-4-pyranyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-2-methoxyphenyl]carbamate (11 mg, 0.023 mmol). The solid was dissolved in ethyl acetate (2 mL) and 1.0N HCl in ether (0.1 mL) was added slowly. The precipatate was collected through filtration under nitrogen to give 4-pyridylmethyl N-[4-(4-amino-7-tetrahydro-2H-4-pyranyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-2-methoxyphenyl]carbamate hydrochloride (12 mg, 0.023 mmol). 1H NMR (DMSO-d6) δ 1.91(m, 2H), 2.16(m, 2H), 3.55(m, 2H), 3.90(s, 3H), 4.03 (m, 2H), 4.92(m, 1H), 5.34(s, 2H), 7.06(d, J=8.2 Hz, 1H), 7.16(s, 1H), 7.73(m, 1H), 7.81(m, 1H), 7.87(s, 1H), 8.46(s, 1H), 8.76(d, J=5.6 Hz, 1H), 9.05(s, 1H). LC/MS: MH30 =475.