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

Participants

Reaction Steps

Neopentylchloroformate(13 uL, 0.110 mmol) was added dropwise to a stirring solution of 5-(4-amino-3-methoxyphenyl)-7-tetrahydro-2H-4-pyranyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine (25 mg, 0.074 mmol) in pyridine (0.7 ml) and dichloromethane (0.7 ml) under nitrogen at 0° C. After 10 minutes, the ice water bath was removed and the resulting mixture was stirred for 4 hours. The solvent was evaporated and the residue was purified by preparative TLC using dichloromethane/methanol (95:5) as the mobile phase to give neopentyl N-(4-(4-amino-7-tetrahydro-2H-4-pyranyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-2-methoxyphenyl)carbamate. 1H NMR (CDCl3) δ 1.00 (s, 3H), 2.07 (m, 4H), 3.65 (m, 2H), 3.91 (s, 2H), 3.94 (s, 3H), 4.13 (m, 2H), 4.97 (m, 1H), 5.18 (s, 2H), 6.97 (s, 1H), 7.03 (s, 1H), 7.07 (d, J=8 Hz, 1H), 7.25 (s, 1H), 8.19 (br. s, J=8 Hz, 1H). 8.33 (s, 1H). LC/MS (MH+=454).

Provenance & Evidence