Potassium Carbonate → 4-(3,5-difluorophenyl)-7-({5-[1-hydroxy-1-(trifluoromethyl)propyl]-1,3-thiazol-2-yl}thio)-2H-chromen-2-one
反応式
[F:1][C:2]1[CH:3]=[C:4]([C:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[O:12][C:11](=[O:19])[C:10]=2F)[CH:5]=[C:6]([F:8])[CH:7]=1.[F:21][C:22]([F:34])([F:33])[C:23]([C:27]1[S:31][C:30]([SH:32])=[N:29][CH:28]=1)([OH:26])[CH2:24][CH3:25].C(=O)([O-])[O-].[K+].[K+]>CN1C(=O)CCC1>[F:1][C:2]1[CH:3]=[C:4]([C:9]2[C:18]3[C:13](=[CH:14][C:15]([S:32][C:30]4[S:31][C:27]([C:23]([OH:26])([C:22]([F:21])([F:33])[F:34])[CH2:24][CH3:25])=[CH:28][N:29]=4)=[CH:16][CH:17]=3)[O:12][C:11](=[O:19])[CH:10]=2)[CH:5]=[C:6]([F:8])[CH:7]=1参加物
実験手順
A solution of 4-(3,5-difluorophenyl)-fluoro-2H-chromen-2-one (0.258 g, 0.93 mmol), 1,1,1-trifluoro-2-(2-mercapto-1,3-thiazol-5-yl)butan-2-ol, (0.250 g, 1.03 mmol) and potassium carbonate (0.387 g, 2.8 mmol) in NMP was heated at 120° C. overnight. The mixture was cooled to room temperature and partitioned between aqueous NH4Cl and EtOAc. The layers were separated and the aqueous phase was extracted with EtOAc. The combined organic layers were washed with water, brine and dried over anhydrous Na2SO4. The solvent was evaporated and the residue chromatographed on silica gel (toluene/acetone; 95:5) to give the title compound. 1H NMR (400 MHz, CDCl3): δ 7.78 (s, 1H), 7.56 (d, 1H), 7.43 (d, 1H), 7.37 (dd, 1H), 7.00-7.04 (m, 3H), 6.41 (s, 1H), 2.66 (br s, 1H), 2.12 (q, 2H), 0.98 (t, 3H).
後処理
- custompartitioned between aqueous NH4Cl and EtOAc
- customThe layers were separated
- extractionthe aqueous phase was extracted with EtOAc
- washThe combined organic layers were washed with water, brine
- dry with materialdried over anhydrous Na2SO4
- customThe solvent was evaporated
- customthe residue chromatographed on silica gel (toluene/acetone; 95:5)
出典と根拠
- ORDレコード
- ord-b0d2143b3dd24e0ea9318cca743553e7
- 出典データセット
- uspto-grants-2008_10
- 特許番号
- US07439260B2
反応ノート
読み込み中…