p-Toluenesulfonic acid monohydrate → 2-(2-(2-Hydroxyethyl)-1H-indol-5-yl)-5,7-dimethoxyquinazolin-4(3H)-one

HRID 591682ノート

反応式

HRID 591682 の反応式
[OH:1][CH2:2][CH2:3][C:4]1[NH:5][C:6]2[C:11]([CH:12]=1)=[CH:10][C:9]([CH:13]=O)=[CH:8][CH:7]=2.[NH2:15][C:16]1[CH:24]=[C:23]([O:25][CH3:26])[CH:22]=[C:21]([O:27][CH3:28])[C:17]=1[C:18]([NH2:20])=[O:19].S([O-])(O)=O.[Na+].O.C1(C)C=CC(S(O)(=O)=O)=CC=1>CN(C)C(=O)C>[OH:1][CH2:2][CH2:3][C:4]1[NH:5][C:6]2[C:11]([CH:12]=1)=[CH:10][C:9]([C:13]1[NH:20][C:18](=[O:19])[C:17]3[C:16](=[CH:24][C:23]([O:25][CH3:26])=[CH:22][C:21]=3[O:27][CH3:28])[N:15]=1)=[CH:8][CH:7]=2

参加物

6

反応物 4

HCID 521998p-Toluenesulfonic acid monohydrateHCID 203490162-Amino-4,6-dimethoxybenzamideHCID 23665763Sodium BisulfiteHCID 866620292-(2-hydroxy-ethyl)-1H-indole-5-carbaldehyde

生成物 1

HCID 1359390342-(2-(2-Hydroxyethyl)-1H-indol-5-yl)-5,7-dimethoxyquinazolin-4(3H)-one

試薬・触媒・溶媒 1

HCID 31374Dimethylacetamide溶媒

反応条件

温度
120 °C

実験手順

To a solution of 2-(2-hydroxy-ethyl)-1H-indole-5-carbaldehyde (0.300 g, 1.58 mmol) and 2-amino-4,6-dimethoxy-benzamide (0.370 g, 1.90 mmol) in N,N-dimethylacetamide (5 mL) were added sodium hydrogen sulfite (58.5 wt %) (0.350 g, 1.90 mmol) and p-toluenesulfonic acid monohydrate (60 mg, 0.32 mmol). The reaction mixture was stirred at 120° C. for 16 hours under nitrogen and cooled to room temperature. The solvent was evaporated under reduced pressure. Water (20 mL) was added and the solid was separated by filtration, washed with water (30 mL) and dried under vacuum. Crude compound was purified by the Simpliflash system (5:20:75 methanol/ethyl acetate/CH2Cl2 as eluent) to give the title compound as an off-white solid. Yield: 0.22 g (38%). MP 237-238° C. 1H NMR (400 MHz, DMSO-d6): δ 11.83 (br s, 1H), 11.20 (s, 1H), 8.34 (s, 1H), 7.90 (d, J=8.2 Hz, 1H), 7.37 (d, J=8.6 Hz, 1H), 6.73 (d, J=1.9 Hz, 1H), 6.48 (d, J=1.9 Hz, 1H), 6.30 (s, 1H), 4.81 (t, J=5.1 Hz, 1H), 3.89 (s, 3H), 3.84 (s, 3H), 3.75 (q, J=6.63 Hz, 2H), 2.89 (t, J=7.0 Hz, 2H).

後処理

  1. temperaturecooled to room temperature
  2. customThe solvent was evaporated under reduced pressure
  3. additionWater (20 mL) was added
  4. customthe solid was separated by filtration
  5. washwashed with water (30 mL)
  6. customdried under vacuum
  7. customCrude compound was purified by the Simpliflash system (5:20:75 methanol/ethyl acetate/CH2Cl2 as eluent)

出典と根拠

ORDレコード
ord-f2420849677545fb81bd9edcebdfdaa6
出典データセット
uspto-grants-2016_01
特許番号
US09238640B2

反応ノート

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