Butylethylamine → Butyl-[3,6dimethyl-1-(2,4,6-trimethylphenyl)-1H-pyrazolo[3,4-b]pyridin-4-yl]ethylamine
反応式
Cl[C:2]1[CH:7]=[C:6]([CH3:8])[N:5]=[C:4]2[N:9]([C:13]3[C:18]([CH3:19])=[CH:17][C:16]([CH3:20])=[CH:15][C:14]=3[CH3:21])[N:10]=[C:11]([CH3:12])[C:3]=12.[CH2:22]([NH:26][CH2:27][CH3:28])[CH2:23][CH2:24][CH3:25]>CS(C)=O>[CH2:22]([NH:26][CH2:27][CH2:28][C:2]1[CH:7]=[C:6]([CH3:8])[N:5]=[C:4]2[N:9]([C:13]3[C:18]([CH3:19])=[CH:17][C:16]([CH3:20])=[CH:15][C:14]=3[CH3:21])[N:10]=[C:11]([CH3:12])[C:3]=12)[CH2:23][CH2:24][CH3:25]参加物
反応条件
- 温度
- 177.5 °C
実験手順
A mixture of 4-chloro-3,6-dimethyl-1-(2,4,6-trimethylphenyl)-1H-pyrazolo[3,4-b]pyridine (98 mg, 0.33 mmol), N-butylethylamine (1 ml) in DMSO (2 ml) was heated in an oil bath at 175-180° C. for 20 hours. The reaction mixture was quenched with saturated ammonium chloride and extracted with EtOAc. The organic layer was washed with brine, dried, and concentrated to give a brown oil. The oil residue was purified through silica gel column chromatography using EtOAc/Hexane in a ratio of 1/9 as eluent to give a colorless oil. 1H NMR (CDCl3) 6.92 (s, 2H), 6.29 (s, 1H), 3.42 (q, 2H), 3.27 (t, 2H), 2.65 (s, 3H), 2.44 (s, 3H), 2.30 (s, 3H), 1.91 (s, 6H), 1.57 (m, 2H), 1.33 (m, 2H), 1.13 (t, 3H), 0.90 (t, 3H) ppm. IR (neat) 2960, 2920, 1570 cm−1. High MS, calc. 364.2627, found 364.26306.
後処理
- customThe reaction mixture was quenched with saturated ammonium chloride
- extractionextracted with EtOAc
- washThe organic layer was washed with brine
- customdried
- concentrationconcentrated
- customto give a brown oil
- customThe oil residue was purified through silica gel column chromatography
- customto give a colorless oil
出典と根拠
- ORDレコード
- ord-aabf28c621164bda83c82eb82cb08a7f
- 出典データセット
- uspto-grants-2001_06
- 特許番号
- US06248753B1
反応ノート
読み込み中…