反应详情

2,4-Dichloro-5-(dihydroxyamino)pyrimidine (2.5 g, 12.75 mmol), 1,1-dimethylethyl (2S)-2-(aminomethyl)-1-pyrrolidinecarboxylate (1.277 g, 6.38 mmol), and DIEA (1.114 mL, 6.38 mmol) were dissolved in DCM (75 mL). The mixture was stirred for 1 h, and when the reaction was complete as determined by LCMS, the solution was concentrated in vacuo. This crude product was purified by flash chromatography (Combiflash, 0-100% ethyl acetate/hexanes) to provide 1,1-dimethylethyl (2S)-2-({[2-chloro-5-(dihydroxyamino)-4-pyrimidinyl]amino}methyl)-1-pyrrolidinecarboxylate (1.6362 g, 71%). LCMS: (M+H)+: 357.8.

1. concentrationthe solution was concentrated in vacuo
2. customThis crude product was purified by flash chromatography (Combiflash, 0-100% ethyl acetate/hexanes)