Sodium hydride → HCID 68427417、化合物

HRID 642291ノート

反応式

HRID 642291 の反応式
[CH2:1]([O:3][C:4]([C:6]1[S:10][C:9]([C:11]2[CH:16]=[CH:15][C:14]([Cl:17])=[CH:13][CH:12]=2)=[N:8][C:7]=1[CH2:18]Br)=[O:5])[CH3:2].[CH2:20]([O:22][C:23](=[O:33])[CH2:24][NH:25][C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH3:21].[H-].[Na+]>CN(C)C=O>[CH2:1]([O:3][C:4]([C:6]1[S:10][C:9]([C:11]2[CH:16]=[CH:15][C:14]([Cl:17])=[CH:13][CH:12]=2)=[N:8][C:7]=1[CH2:18][N:25]([C:26]([O:28][C:29]([CH3:30])([CH3:32])[CH3:31])=[O:27])[CH2:24][C:23]([O:22][CH2:20][CH3:21])=[O:33])=[O:5])[CH3:2]

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 357729Ethyl 2-((tert-butoxycarbonyl)amino)acetateHCID 58610288HCID 58610288、化合物

生成物 1

HCID 68427417HCID 68427417、化合物収率 32.3%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
0 °C

実験手順

A mixture of 4-bromomethyl-2-(4-chloro-phenyl)-thiazole-5-carboxylic acid ethyl ester (2.22 g, 6.18 mmol), tert-butoxycarbonylamino-acetic acid ethyl ester (1.32 g, 6.48 mmol) and sodium hydride (60% in mineral oil, 296 mg, 7.4 mmol) in anhydrous dimethylformamide (30 mL) was stirred at 0° C. for one hour and room temperature for four hours before it was quenched with brine. The mixture was partitioned between ethyl acetate and water. The organic layer was washed with water, brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel with a gradient of ethyl acetate and hexanes to give the title compound as a yellow oil (964 mg): 1H NMR (CDCl3, 200 MHz): δ=7.87 (d, 2H), 7.39 (d, 2H), 4.99 (m, 2H), 4.21 (m, 6H), 1.45 (s, 9H), 1.26 (t, 3H).

後処理

  1. customwas quenched with brine
  2. customThe mixture was partitioned between ethyl acetate and water
  3. washThe organic layer was washed with water, brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography on silica gel with a gradient of ethyl acetate and hexanes

出典と根拠

ORDレコード
ord-843de80454ca4fa3923b552e7a005a17
出典データセット
uspto-grants-2010_04
特許番号
US07696223B2

反応ノート

読み込み中…