Hydrochloric Acid → HCID 178487228, compound

Reaction equation

[CH3:1][O:2][C:3]1[CH:26]=[CH:25][C:6]2[C:7](=[O:24])/[C:8](=[CH:10]/[C:11]3[C:19]4[C:14](=[CH:15][CH:16]=[C:17]([S:20]([CH3:23])(=[O:22])=[O:21])[CH:18]=4)[NH:13][N:12]=3)/[O:9][C:5]=2[C:4]=1[CH2:27][N:28]1[CH2:33][CH2:32][N:31](C(OC(C)(C)C)=O)[CH2:30][CH2:29]1.Cl>C(Cl)Cl.O1CCOCC1>[CH3:1][O:2][C:3]1[CH:26]=[CH:25][C:6]2[C:7](=[O:24])/[C:8](=[CH:10]/[C:11]3[C:19]4[C:14](=[CH:15][CH:16]=[C:17]([S:20]([CH3:23])(=[O:21])=[O:22])[CH:18]=4)[NH:13][N:12]=3)/[O:9][C:5]=2[C:4]=1[CH2:27][N:28]1[CH2:29][CH2:30][NH:31][CH2:32][CH2:33]1

Participants

Procedure

A solution of tert-butyl (Z)-4-[(6-methoxy-2-{[5-(methylsulfonyl)-1H-indazol-3-yl]methylene}-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.0462 g, 0.0812 mmol) in methylene chloride (1 mL) was added with a 4 M solution of hydrogen chloride in 1,4-dioxane (1 mL), and the mixture was stirred at room temperature for 15 hours. The reaction mixture was concentrated, the resulting residue was added with saturated aqueous sodium hydrogencarbonate, and the mixture was extracted five times with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, and then the solvent was evaporated to obtain (Z)-6-methoxy-2-{[5-(methylsulfonyl)-1H-indazol-3-yl]methylene}-7-(piperazin-1-ylmethyl)benzofuran-3(2H)-one (0.0277 g, 72%).