Hydrochloric Acid → HCID 57486101, compound

Reaction equation

C[O:2][C:3](=[O:27])[CH2:4][C:5]1[S:9][C:8]([NH:10][C:11](=[O:20])[C:12]2[CH:17]=[C:16]([Br:18])[CH:15]=[CH:14][C:13]=2[OH:19])=[N:7][C:6]=1[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.[OH-].[Na+].Cl>CO>[Br:18][C:16]1[CH:15]=[CH:14][C:13]([OH:19])=[C:12]([CH:17]=1)[C:11]([NH:10][C:8]1[S:9][C:5]([CH2:4][C:3]([OH:27])=[O:2])=[C:6]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[N:7]=1)=[O:20]

Participants

Procedure

{2-[(5-Bromo-2-hydroxybenzoyl)amino]-4-phenylthiazol-5-yl}acetic acid methyl ester (75 mg, 0.17 mmol) was dissolved in methanol (5 mL). 2 N sodium hydroxide (0.5 mL, 1 mmol) was added, and the mixture was stirred at room temperature for 12 hours. The reaction mixture was poured into 2 N hydrochloric acid and extracted with ethyl acetate. After the ethyl acetate layer was washed with water and brine one after another, dried over anhydrous sodium sulfate, the solvent was evaporated under reduced pressure. The obtained residue was suspended and washed with n-hexane-ethyl acetate under heating at reflux to give the title compound (56 mg, 77.3%) as a light yellow white crystal.