Sodium Hydroxide → HCID 11428427、化合物

反応式

[CH3:1][C:2]1[S:3][C:4]2[C:10](=O)[CH:9]([CH:12]=O)[CH2:8][CH2:7][C:5]=2[N:6]=1.[N+]([O-])(O)=O.[F:18][C:19]([F:31])([F:30])[C:20]1[CH:25]=[CH:24][C:23]([NH:26][C:27]([NH2:29])=[NH:28])=[CH:22][CH:21]=1.[OH-].[Na+]>COCCO>[CH3:1][C:2]1[S:3][C:4]2[C:10]3[N:29]=[C:27]([NH:26][C:23]4[CH:22]=[CH:21][C:20]([C:19]([F:18])([F:30])[F:31])=[CH:25][CH:24]=4)[N:28]=[CH:12][C:9]=3[CH2:8][CH2:7][C:5]=2[N:6]=1

参加物

実験手順

A mixture of 2-methyl-7-oxo-4,5,6,7-tetrahydro-benzothiazole-6-carbaldehyde (200 mg, 1.02 mmol), N-(4-trifluoromethyl-phenyl)-guanidine nitrate (273 mg, 1.02 mmol), NaOH (41 mg, 1.02 mmol) and 2-methoxyethanol (1.25 mL) was heated under reflux for 16 h. The reaction mixture was concentrated under vacuum. Flash column chromatography (20% EtOAc:hexane) followed by crystallisation from EtOAc gave the pure title compound as a white crystalline solid (30 mg, 8%): mp 212-213° C. Anal. RP-HPLC: tR 21.8 min (10-70% MeCN, purity 95%). 1H-NMR (CDCl3): δ 8.17 (s, 1H, Py-H), 7.71 (d, 2H, J 8.4, Ph-H), 7.52 (d, 2H, J 8.4, Ph-H), 7.16 (s, 1H, NH), 3.04 (t, 2H, J 6.6, CH2), 2.94 (t, 2H, J 6.6, CH2), 2.72 (s, 3H, CH3). MS (ESI−): m/z 360.95 (M−H)+.