Potassium Cyanide → tert-butyl (3aR,6aR)-5-[6-bromo-5-(cyanomethyl)-3-pyridinyl]hexahydropyrrolo[3,4-b]pyrrole-1(2H)-carboxylate

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Reaction Conditions

Reaction Steps

The product of Example 66A (0.300 g, 0.630 mmol) in N,N-dimethylfomamide (5 mL) was treated with KCN (61 mg, 0.945 mmol). The mixture was warmed to 60° C. and allowed to stir for 20 hours. The mixture was then concentrated under reduced pressure and the residue purified via chromatography (SiO2, 50% ethyl acetate/hexanes) to provide the title compound (0.100 g, 0.246 mmol, 39% yield). MS (DCI/NH3) m/z 409 (M+H)+.

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