6-((2,2-Diphenylethyl)amino)-9-(tetrahydro-2H-pyran-2-yl)-9H-purine-2-carbonitrile → 2-(aminomethyl)-N-(2,2-diphenylethyl)-9-tetrahydro-2H-pyran-2-yl-9H-purin-6-amine

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Reaction Steps

6-[(2,2-Diphenylethyl)amino]-9-(tetrahydro-2H-pyran-2-yl)-9H-purine-2-carbonitrile (19.7 g, 0.046 mol) (Preparation 23) was dissolved in a saturated solution of ammonia in ethanol (500 ml). 10% Palladium on carbon (2 g) was added and the suspension was stirred under an atmosphere of hydrogen (414 kPa, 60 psi) for 36 hours. The suspension was filtered through Arbocel (Trade Mark) and the solvent was removed under reduced pressure. This gave the title compound as a foam (17.7 g).

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