Sodium hydride → 4-[(tert-Butoxycarbonyl-ethoxycarbonylmethyl-amino)-methyl]-2-(4-trifluoromethyl-phenyl)-thiazole-5-carboxylic acid ethyl ester

HRID 642287ノート

反応式

HRID 642287 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]([C:17]([F:20])([F:19])[F:18])=[CH:13][CH:12]=2)=[N:8][C:7]=1[CH2:21]Br)=[O:5])[CH3:2].[CH2:23]([O:25][C:26](=[O:36])[CH2:27][NH:28][C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH3:24].[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]([C:17]([F:20])([F:19])[F:18])=[CH:13][CH:12]=2)=[N:8][C:7]=1[CH2:21][N:28]([C:29]([O:31][C:32]([CH3:33])([CH3:35])[CH3:34])=[O:30])[CH2:27][C:26]([O:25][CH2:23][CH3:24])=[O:36])=[O:5])[CH3:2]

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 357729Ethyl 2-((tert-butoxycarbonyl)amino)acetateHCID 179517684-Bromomethyl-2-(4-trifluoromethyl-phenyl)-thiazole-5-carboxylic Acid Ethyl Ester

生成物 1

HCID 684274034-[(tert-Butoxycarbonyl-ethoxycarbonylmethyl-amino)-methyl]-2-(4-trifluoromethyl-phenyl)-thiazole-5-carboxylic acid ethyl ester収率 23.2%

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-trifluoromethyl-phenyl)-thiazole-5-carboxylic acid ethyl ester (1.05 g, 2.67 mmol), tert-butoxycarbonylamino-acetic acid ethyl ester (540 mg, 2.66 mmol) and sodium hydride (60% in mineral oil, 128 mg, 3.2 mmol) in anhydrous dimethylformamide (10 mL) was stirred at 0° C. for two hours and room temperature for half an hour before it was quenched with brine. The mixture was filtered and the filtrate was extracted with ethyl acetate. 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 (319 mg): MS: (+) m/z 538.9 (M+Na+).

後処理

  1. customwas quenched with brine
  2. filtrationThe mixture was filtered
  3. extractionthe filtrate was extracted with ethyl acetate
  4. washThe organic layer was washed with water, brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated in vacuo
  7. 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-21d69a1fcdb84e4cb15db075e3f583f3
出典データセット
uspto-grants-2010_04
特許番号
US07696223B2

反応ノート

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