反应详情

温度

65 °C

To a solution of tert-butyl (1R,3S,4S,6R)-3-{[(2S)-2-cyano-1-pyrrolidinyl]carbonyl}-6-hydroxy-2-azabicyclo[2.2.1]heptane-2-carboxylate obtained in Example 5-7 (510 mg) in tetrahydrofuran (5.0 mL), were added 1,4-bis(diphenylphosphino)butane (64.8 mg), tris(dibenzylideneacetone)dipalladium(0)-chloroform adduct (39.3 mg) and allyl ethyl carbonate (0.4 mL). The mixture was stirred at 65° C. for 4 hrs. The resulting mixture was evaporated in vacuo and the residue was chromatographed on silica gel eluting with ethyl acetate to give the target compound (408 mg).

1. customThe resulting mixture was evaporated in vacuo
2. customthe residue was chromatographed on silica gel eluting with ethyl acetate