Toluene → HCID 18396232、化合物
反応式
[C:1]([N:8]1[CH2:12][CH2:11][CH2:10][C@H:9]1[C:13]1[O:21][C:20]2[C:15](=[N:16][CH:17]=[C:18](Br)[CH:19]=2)[CH:14]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].C([O-])([O-])=O.[Na+].[Na+].[C:29]1(C)[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1>[Pd]>[C:1]([N:8]1[CH2:12][CH2:11][CH2:10][C@H:9]1[C:13]1[O:21][C:20]2[C:15](=[N:16][CH:17]=[C:18]([C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)[CH:19]=2)[CH:14]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2]参加物
実験手順
The 2-(1-BOC-2-(S)-pyrrolidinyl)-6-bromofuro[3,2-b]pyridine (0.2 g, 0.54 mmol) obtained from Example 46a above was dissolved in toluene (2 mL). Phenylbororic acid (0.19 g, 1.62 mmol), palladium (O) tetrakis(triphenyl phosphine) (40 mg) and 2 M Na2CO3 solution (1 mL) were then added to the toluene solution. The resultant mixture was heated under reflux for 16 h. The desired product was extracted with CH2Cl2, dried over MgSO4 and filtered. Solvent was then removed under reduced pressure and the residue was chromatographed (silica gel: Hexane/EtOAc, 5:1 to 2:1) to afford an oil (0.22 g, 100%). MS (CI/NH3) m/z: 365 (M+H)+; 1H NMR (CDCl3, 300 MHz) δ 1.32, 1.50 (2s, 9H), 1.90-2.22 (m, 3H), 2.30 (m, 1H), 3.42-3.73 (m, 2H), 4.97-5.20 (m, 1H), 6.92-7.02 (m, 1H), 7.33-7.66 (m, 5H), 7.93 (s, 1H), 8.90 (s, 1H).
後処理
- temperatureunder reflux for 16 h
- extractionThe desired product was extracted with CH2Cl2
- dry with materialdried over MgSO4
- filtrationfiltered
- customSolvent was then removed under reduced pressure
- customthe residue was chromatographed (silica gel: Hexane/EtOAc, 5:1 to 2:1)
出典と根拠
- ORDレコード
- ord-f62f9686c86645b2ae60ad13a0b7171b
- 出典データセット
- uspto-grants-1999_12
- 特許番号
- US06001849
反応ノート
読み込み中…