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Ethyl Acetate → (2R,5S)-2-Azidomethyl-5-(3-trifluoromethoxy-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester

HRID 1527349
ノート
印刷プレビュー

反応式

HRID 1527349 の反応式
[CH2:1]([O:8][C:9]([N:11]1[C@H:15]([C:16](=[O:29])[NH:17][C:18]2[CH:23]=[CH:22][CH:21]=[C:20]([O:24][C:25]([F:28])([F:27])[F:26])[CH:19]=2)[CH2:14][CH2:13][C@@H:12]1[CH2:30]OS(C)(=O)=O)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N-:36]=[N+:37]=[N-:38].[Na+].CCOC(C)=O>CN(C=O)C.O>[CH2:1]([O:8][C:9]([N:11]1[C@H:15]([C:16](=[O:29])[NH:17][C:18]2[CH:23]=[CH:22][CH:21]=[C:20]([O:24][C:25]([F:28])([F:27])[F:26])[CH:19]=2)[CH2:14][CH2:13][C@@H:12]1[CH2:30][N:36]=[N+:37]=[N-:38])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 8857Ethyl AcetateHCID 33557Sodium AzideHCID 86673829(2R,5S)-2-Methanesulfonyloxymethyl-5-(3-trifluoromethoxy-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester

生成物 1

HCID 86673830(2R,5S)-2-Azidomethyl-5-(3-trifluoromethoxy-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester

試薬・触媒・溶媒 2

HCID 962Water
溶媒
2 回
HCID 6228Dimethylformamide溶媒

反応条件

温度
80 °C

実験手順

To a solution of (2R,5S)-2-methanesulfonyloxymethyl-5-(3-trifluoromethoxy-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester (589 mg, 1.14 mmol) in DMF (4.5 mL) was added a solution of sodium azide (371 mg, 5.7 mmol) in water (0.5 mL) and the mixture was stirred at 80° C. under nitrogen atmosphere overnight. EtOAc and a water were added, the layers were separated and the aqueous one back-extracted with EtOAc. The combined organic extracts were washed with brine, dried over Na2SO4, filtered and concentrated. The crude residue was purified by flash column chromatography on silica gel (c-hexane/EtOAc gradient 100:0 to 6:5) to give the desired compound. MS (LC-MS): 464 [MH−Boc]+; tR (HPLC conditions b) 5.73 min.

後処理

  1. customthe layers were separated
  2. extractionthe aqueous one back-extracted with EtOAc
  3. washThe combined organic extracts were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude residue was purified by flash column chromatography on silica gel (c-hexane/EtOAc gradient 100:0 to 6:5)

出典と根拠

ORDレコード
ord-86d8b1d516274f08a76080c739338619
出典データセット
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09085555B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート