tert-Butyl 3-[2-(7-chloro-4-oxo-4H-1,3-benzothiazin-2-yl)-4-pyridyl]propanoate → HCID 10269150、化合物
反応式
[Cl:1][C:2]1[CH:27]=[CH:26][C:5]2[C:6](=[O:25])[N:7]=[C:8]([C:10]3[CH:15]=[C:14]([CH2:16][CH2:17][C:18]([O:20]C(C)(C)C)=[O:19])[CH:13]=[CH:12][N:11]=3)[S:9][C:4]=2[CH:3]=1>FC(F)(F)C(O)=O>[Cl:1][C:2]1[CH:27]=[CH:26][C:5]2[C:6](=[O:25])[N:7]=[C:8]([C:10]3[CH:15]=[C:14]([CH2:16][CH2:17][C:18]([OH:20])=[O:19])[CH:13]=[CH:12][N:11]=3)[S:9][C:4]=2[CH:3]=1参加物
3
反応条件
- 温度
- 0 °C
実験手順
tert-Butyl 3-[2-(7-chloro-4-oxo-4H-1,3-benzothiazin-2-yl)-4-pyridyl]propanoate (1.00 g, 2.4 mmol) was dissolved in trifluoroacetic acid (10 ml), and the mixture was stirred at 0° C. for 2 hrs. The solvent was evaporated, and the residue was recrystallized from hexane-tetrahydrofuran-methanol to give the titled compound (0.66 g, 76%) as white crystals.