Cesium carbonate → HCID 72203564、化合物
反応式
Br[C:2]1[C:3]([C:22]([F:25])([F:24])[F:23])=[N:4][CH:5]=[C:6]([CH:21]=1)[C:7]([NH:9][C:10]1[CH:15]=[CH:14][C:13]([O:16][C:17]([F:20])([F:19])[F:18])=[CH:12][CH:11]=1)=[O:8].[N:26]1[CH:31]=[C:30](B(O)O)[CH:29]=[N:28][CH:27]=1.C([O-])([O-])=O.[Cs+].[Cs+]>O.O1CCOCC1>[N:26]1[CH:31]=[C:30]([C:2]2[C:3]([C:22]([F:25])([F:24])[F:23])=[N:4][CH:5]=[C:6]([CH:21]=2)[C:7]([NH:9][C:10]2[CH:15]=[CH:14][C:13]([O:16][C:17]([F:20])([F:19])[F:18])=[CH:12][CH:11]=2)=[O:8])[CH:29]=[N:28][CH:27]=1参加物
反応条件
- 温度
- 70 °C
実験手順
5-Bromo-N-(4-(trifluoromethoxy)phenyl)-6-(trifluoromethyl)nicotinamide (Stage 57.1, 125.7 mg, 0.293 mmol), pyrimidin-5-ylboronic acid (43.6 mg, 0.352 mmol), Cs2CO3 (191 mg, 0.586 mmol), PdCl2(dppf)-(CH2Cl2) (23.92 mg, 0.029 mmol), water (2 mL) and dioxane (8 mL) were added to a vial, which was sealed, evacuated/purged with argon and the RM was stirred at 70° C. for 2.5 h. The solvent was evaporated off under reduced pressure to give a residue which was treated with water and extracted with EtOAc. The combined extracts were washed with water and brine, dried over Na2SO4 and the solvent was evaporated off under reduced pressure to give the crude product which was purified by flash chromatography (Silica gel column, 25 g, n-hexane/EtOAc) and recrystallized from n-hexane/EtOAc to give the title compound as a pink powder. UPLC-MS (Condition 2) tR=1.07 min, m/z=429 [M+H]+.
後処理
- customwas sealed
- customevacuated/purged with argon
- customThe solvent was evaporated off under reduced pressure
- customto give a residue which
- extractionextracted with EtOAc
- washThe combined extracts were washed with water and brine
- dry with materialdried over Na2SO4
- customthe solvent was evaporated off under reduced pressure
- customto give the crude product which
- customwas purified by flash chromatography (Silica gel column, 25 g, n-hexane/EtOAc)
- customrecrystallized from n-hexane/EtOAc
出典と根拠
- ORDレコード
- ord-32c65b7f729545b59967f6def667683c
- 出典データセット
- uspto-grants-2016_04
- 特許番号
- US09315489B2
反応ノート
読み込み中…