Acetone → HCID 19882669, compound

Participants

Reaction Steps

The product from Example 75 (1.5 g) was added to a solution of acetone (25 ml) and MeOH (25 ml) then 95% sodium cyanoborohydride (1.32 g) was added in portions. The pH of the reaction was adjusted to ca. pH 5 after complete addition of the NaBH3CN. The reaction was then stirred at room temperature for 8 hrs. The reaction was evaporated to dryness, then dilute HCl and CH2Cl2 (50 ml) was added. The aqueous layer was separated, basified then CH2Cl2 added. The organic layer was separated, dried (MgSO4), filtered and evaporated. The residue was taken up in Et2O (300 ml) then ethereal HCl added. The resulting precipitate was filtered and recrystallized from EtOAc/MeOH giving the desired compound, m.p. 212° C.-14° C.

Provenance & Evidence