反应详情

methyl 2-(benzyloxycarbonylamino)-3-(bicyclo[2.2.2]octan-1-yl)propanoate (720 mg, 2.087 mmol, 1 eq.) was dissolved in 15 mL of MeOH. NaBH4 (631 mg, 16.7 mmol, 8 eq.) was added in portions. The mixture was stirred for 1.5 h. Saturated aq; NaHSO3 (20 mL) was added and the pH of the mixture was adjusted to 7-8 with NaHSO3 (s). The mixture was evaporated and extracted with EtOAc (20 mL×5). The organic phase was combined and evaporated to give benzyl 1-(bicyclo[2.2.2]octan-1-yl)-3-hydroxypropan-2-ylcarbamate as oil, which was used in the next step without further purification. MS ESI +ve m/z 318 (M+H).

1. customThe mixture was evaporated
2. extractionextracted with EtOAc (20 mL×5)
3. customevaporated