Sodium borohydride → HCID 89748270, compound

Participants

Reaction Conditions

Reaction Steps

NaBH4 (5.56 mmol, 0.21 g) was added to a solution of 1-benzyl-2-((tert-butoxycarbonylamino)methyl)-5-fluoropyridinium bromide (1.40 mmol, 0.60 g) in MeOH at 0° C. The resulting mixture was stirred at 0° C. for 40 min. An aliquot was checked by analytical HPLC and some of the starting material remained. Additional NaBH4 (5.56 mmol, 0.21 g) was added at 0° C. and the resulting mixture was stirred for extra 40 min. The reaction mixture was diluted with EtOAc and washed with brine. EtOAc layer was separated, dried with MgSO4 and concentrated in vacuo to give desired tert-butyl (1-benzyl-5-fluoro-1,2,3,4-tetrahydropyridin-2-yl)methylcarbamate in 62% yield which was used for next step without further purification. MS (ESI) 321 (M+H).

Provenance & Evidence