Hydrochloric Acid → HCID 15670192, compound

Reaction equation

[Na+].C([S:5][CH2:6][CH:7]([CH2:20][C:21]1[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=1)[C:8]([NH:10][C:11]1[CH:12]=[C:13]([CH:17]=[CH:18][CH:19]=1)[C:14]([O-:16])=[O:15])=[O:9])(=O)C.[OH-].[Na+].Cl>O>[SH:5][CH2:6][CH:7]([CH2:20][C:21]1[CH:22]=[CH:23][C:24]([F:27])=[CH:25][CH:26]=1)[C:8]([NH:10][C:11]1[CH:12]=[C:13]([CH:17]=[CH:18][CH:19]=1)[C:14]([OH:16])=[O:15])=[O:9]

Participants

Procedure

3-[[2-Acetylthiomethyl-3-(4-fluorophenyl)-propionyl]amino]benzoic acid sodium salt (compound of Example 40) (1.2 g) is dissolved in water (20 ml), and the mixture is adjusted to pH 12.0 with 10% aqueous sodium hydroxide solution under nitrogen. After reacting at room temperature for one hour, the reaction mixture is adjusted to pH 2.5 with 10% hydrochloric acid. The mixture is extracted with ethyl acetate (50 ml). The extract is washed with water and ethyl acetate is distilled off. The residue is purified by a medium pressure column chromatography with CHP-20P (eluant, water-dioxane). The fractions containing the desired compound are collected and lyophilized to give the title compound (0.6 g).