Hydrochloric Acid → HCID 136201989、化合物

反応式

C([O:8][C:9]1[C:10]([O:27][CH3:28])=[CH:11][C:12]([C:21]2[N:25]=[C:24]([CH3:26])[O:23][N:22]=2)=[C:13]([S:15]([N:18]([CH3:20])[CH3:19])(=[O:17])=[O:16])[CH:14]=1)C1C=CC=CC=1.Cl>[Ti](Cl)(Cl)(Cl)Cl.C(Cl)Cl>[OH:8][C:9]1[C:10]([O:27][CH3:28])=[CH:11][C:12]([C:21]2[N:25]=[C:24]([CH3:26])[O:23][N:22]=2)=[C:13]([S:15]([N:18]([CH3:20])[CH3:19])(=[O:16])=[O:17])[CH:14]=1

参加物

実験手順

To a mixture of 5-benzyloxy-4-methoxy-N,N-dimethyl-2-(5-methyl-[1,2,4]oxadiazol-3-yl)benzenesulfonamide and methylene chloride (20 mL) was added titanium(IV) chloride (0.472 g) under ice-bath cooling. After stirring at room temperature overnight, 2 mol/L hydrochloric acid and methylene chloride were added to the mixture. The separated organic layer was washed with 2 mol/L hydrochloric acid and brine successively, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: 10%-100% ethyl acetate/hexane, gradient elution) to give the title compound (121 mg).