Hydrochloric Acid → HCID 23512418、化合物

反応式

[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[NH:9][C:10](=[O:24])[NH:11][C:12]1[CH:17]=[CH:16][C:15]([CH2:18][C:19]([O:21]CC)=[O:20])=[CH:14][CH:13]=1.[OH-].[Na+].Cl>CO>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[NH:9][C:10](=[O:24])[NH:11][C:12]1[CH:13]=[CH:14][C:15]([CH2:18][C:19]([OH:21])=[O:20])=[CH:16][CH:17]=1

参加物

実験手順

To a stirred solution of ethyl 4-[N′-(2-methoxyphenyl)ureido]phenylacetate (2.22 g, 6.78 mmol) in MeOH (30 ml) was added 1.0 M-NaOH aq. (10.2 ml, 10.2 mmol), and the resulting mixture was stirred overnight 1N-HCl (aq.) was added and the mixture was concentrated in vacuo. Water was added to the residue to give precipitate, which was collected by filtration. The crude solid was recrystallized from EtOH/hexane to give 4-[N′-(2-methoxyphenyl)ureido]phenylacetic acid as a white powder (1.87 g, 92%). mp 165-168° C.; 1H-NMR (CD3OD) δ2.30 (s, 3 H), 3.55 (s, 2 H), 4.87 (s, 3 H), 6.87-6.92 (m, 2 H), 6.97-6.99 (m, 2 H), 7.10-7.24 (m, 2 H), 7.53-7.58 (m, 1 H), 8.04 (d, J=7.2 Hz, 1 H); MS (ESI) m/z 300 (M+).