反応式
[CH:1]1([O:6][C:7]2[C:14]([O:15][CH3:16])=[CH:13][C:10]([CH:11]=O)=[CH:9][C:8]=2[O:17][CH3:18])[CH2:5][CH2:4][CH2:3][CH2:2]1.[N:19]1[S:20][N:21]=[C:22]2[CH:27]=[C:26]([CH:28]([CH2:34][C:35]([C:37]3[CH:42]=[CH:41][C:40]([O:43][CH3:44])=[CH:39][CH:38]=3)=[O:36])[C:29]([O:31]CC)=[O:30])[CH:25]=[CH:24][C:23]=12.N1SN=C2C=C(CC(OCC)=O)C=CC=12.C(=O)([O-])[O-].[K+].[K+].NC1C=C(CC(OCC)=O)C=CC=1N.S(=NC1C=CC=CC=1)=O.[Na]>CC(C)=O.C1(C)C=CC=CC=1.C(O)C.C(O)(=O)C>[N:19]1[S:20][N:21]=[C:22]2[CH:27]=[C:26]([C:28]3[C:29](=[O:30])[O:31][C:35]([OH:36])([C:37]4[CH:38]=[CH:39][C:40]([O:43][CH3:44])=[CH:41][CH:42]=4)[C:34]=3[CH2:11][C:10]3[CH:13]=[C:14]([O:15][CH3:16])[C:7]([O:6][CH:1]4[CH2:5][CH2:4][CH2:3][CH2:2]4)=[C:8]([O:17][CH3:18])[CH:9]=3)[CH:25]=[CH:24][C:23]=12参加物
反応物 7
生成物 1
試薬・触媒・溶媒 4
実験手順
0.368 g of 4-cyclopentyloxy-3,5-dimethoxybenzaldehyde (“A”) and 0.52 g of ethyl 2-(2,1,3-benzothiadiazol-5-yl)-4-(4-methoxyphenyl)-4-oxobutanoate, m.p. 89° (obtainable by reaction of 5.5 g of ethyl 2-(2,1,3-benzothiadiazol-5-yl)acetate with 5.5 g of 2′-bromo-4-methoxyacetophenone and 4 g of potassium carbonate in 200 ml of acetone, 18 hours under reflux; ethyl 2-(2,1,3-benzothiadiazol-5-yl)acetate, m.p. 40-41° is obtained by reaction of 24.3 g of ethyl 3,4-diaminophenylacetate and 26.9 ml of thionylaniline in 80 ml of toluene, 4 hours under reflux) are added to a solution of 34 mg of sodium in 10 ml of ethanol and the mixture is heated under reflux for one hour. After addition of 1.4 ml of acetic acid, it is heated for a further 16 hours. The solvent is removed and the residue is worked up in the customary manner. 3-(2,1,3-Benzothiadiazol-5-yl)-4-(4-cyclopentyloxy-3,5-dimethoxy-benzyl)-5-hydroxy-5-(4-methoxyphenyl)-5H-furan-2-one is obtained, FAB 575.
後処理
- temperaturethe mixture is heated
- temperatureunder reflux for one hour
- temperatureis heated for a further 16 hours
- customThe solvent is removed
出典と根拠
- ORDレコード
- ord-17a359feab954b548052de3d5d6c93ea
- 出典データセット
- uspto-grants-2001_03
- 特許番号
- US06197800B1
関連ノート
読み込み中…