Water → 8-Bromo-2-(cyclohexyloxy)-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-amine

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Reaction Steps

N-Bromosuccinimide (0.214 g, 1.2 mmol) was added to a stirred solution of 2-(cyclohexyloxy)-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-amine (0.254 g, 0.80 mmol) in chloroform (5 ml) at 0° C. The resultant mixture was stirred at 0° C. for 1.5 hours and then warmed to room temperature and stirred for a further 2 hours. Water (5 ml) was added and the phases separated using a hydrophobic frit. The organic phase was evaporated and the residue dissolved in dichloromethane and purified on a 70 g aminopropyl (NH2) cartridge eluting with a 0-100% ethyl acetate in cyclohexane gradient over 40 mins. The appropriate fractions were combined and evaporated in vacuo to give the title compound as a white solid (0.252 g).

Provenance & Evidence