Lithium hydroxide, monohydrate → HCID 59497497, compound

Participants

Reaction Steps

To a stirred solution of 3-{3-[6-(tert-Butyl-dimethyl-silanyloxy)-naphthalen-1-ylmethyl]-2-oxo-2,3-dihydro-benzimidazol-1-yl}-propionic acid methyl ester (200 mg, 0.41 mmol) in THF (7 ml) and water (1 ml) was added lithium hydroxide monohydrate (26 mg, 0.61 mmol) at ambient temperature. Upon complete consumption of the starting material the reaction was diluted with water, ethyl acetate and 6N HCl (adjusted to pH=2). The layers were separated and the aqueous phase was extracted once with ethyl acetate. The combined organics were dried (MgSO4), filtered and concentrated. The remaining residue was diluted with acetonitrile (3 ml) and allowed to stand over night. The resulting precipitated product was collected via filtration, washed with acetonitrile and dried on house vacuum to give 15 mg (10%) of the desired product. LCMS (ESMS): m/z 363.38 (M+H+).

Provenance & Evidence