Citric Acid → HCID 53907908, compound

Participants

Reaction Steps

((2R)-2-(tert-Butoxycarbonylmethylamino)-3-phenylpropoxy)acetic acid ethyl ester (0.50 g, 1.42 mmol) was dissolved in THF (4 mL). Lithium boronhydride (1.56 mL of a 2.0 M solution in THF, 3.13 mmol) was added dropwise. Ethanol (8 mL) was added. The reaction mixture was stirred 16 h at room temp. The solution was acidified with 10% citric acid to pH=4. The solvent was removed in vacuo. The residue was dissolved in water (50 mL). This solution was extracted with dichloromethane (3×40 mL). The combined organic layers were dried over magnesium sulfate. The solvent was removed in vacuo. The crude product was purified by flash chromatography on silica (30 g) with dichloromethane/ethyl acetate 1:1 as eluent to give 0.29 g of N-((1R)-1-(2-hydroxyethoxymethyl)-2-phenylethyl)-N-methylcarbamic acid tert-butylester

Provenance & Evidence