Hydrochloric Acid → HCID 11278150, compound

Participants

Reaction Conditions

Reaction Steps

10.8 mg of LiOH.H2O solution (0.25 mmol) was added to 0.86 ml of THF solution containing 55 mg of 3-[1-(2,4-dimethoxy benzyl)-2-oxo-2,5-dihydro-1H-pyrrol-3-yl]-propionic acid methyl ester (0.17 mmol) in a dropwise manner at 0° C. The reaction mixture was stirred for 2 hrs at 0° C. and 5% HCl was added to pH 1. Then the mixture was extracted three times with 10 ml of ethyl acetate, the organic layer was washed with 15 ml of saturated NaCl solution, dried over anhydrous MgSO4, filtered and concentrated in vacuo. The resulting compound was purified with Silica gel column chromatography with a solvent mixture mixed with methanol and chloroform (1:9) as an eluant to give 41 mg of 3-[1-(2,4-dimethoxy-benzyl)-2-oxo-2,5-dihydro-1H-pyrrol-3-yl]-propionic acid (16f) (yield: 80%).

Provenance & Evidence