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Dimethylformamide → 4-{(S)-2-[(4-Benzyloxycarbonylmethoxy-quinoline-2-carbonyl)-amino]-4-tert-butoxycarbonyl-butyryl}-piperazine-1-carboxylic acid ethyl ester

HRID 1185436
ノート
印刷プレビュー

反応式

HRID 1185436 の反応式
[CH2:1]([O:3][C:4]([N:6]1[CH2:11][CH2:10][N:9]([C:12](=[O:37])[C@@H:13]([NH:23][C:24]([C:26]2[CH:35]=[C:34]([OH:36])[C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[N:27]=2)=[O:25])[CH2:14][CH2:15][C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:8][CH2:7]1)=[O:5])[CH3:2].CN(C=O)C.C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:49]([O:56][C:57](=[O:60])[CH2:58]Br)[C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1>O>[CH2:1]([O:3][C:4]([N:6]1[CH2:7][CH2:8][N:9]([C:12](=[O:37])[C@@H:13]([NH:23][C:24]([C:26]2[CH:35]=[C:34]([O:36][CH2:58][C:57]([O:56][CH2:49][C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)=[O:60])[C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[N:27]=2)=[O:25])[CH2:14][CH2:15][C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:10][CH2:11]1)=[O:5])[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 6228DimethylformamideHCID 10796Cesium carbonateHCID 62576Benzyl bromoacetateHCID 178473385HCID 178473385、化合物

生成物 1

HCID 686029414-{(S)-2-[(4-Benzyloxycarbonylmethoxy-quinoline-2-carbonyl)-amino]-4-tert-butoxycarbonyl-butyryl}-piperazine-1-carboxylic acid ethyl ester

試薬・触媒・溶媒 1

HCID 962
Water
溶媒

実験手順

To a solution of 6.2 g of 4-{(S)-4-tert-Butoxycarbonyl-2-[(4-hydroxy-quinoline-2-carbonyl)-amino]-butyryl}-piperazine-1-carboxylic acid ethyl ester 80 ml of DMF, 4.3 g of cesium carbonate and 2.5 g of Bromo-acetic acid benzyl ester was added and stirred for 2 h. Then, the reaction mixture was diluted with water and extracted with ethyl acetate (3×150 ml). The combined organic phases were dried over MgSO4 and the solvents were removed under reduced pressure. The crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate. The fractions containing the product were combined and the solvent evaporated under reduced pressure. Yield: 4.4 g.

後処理

  1. extractionextracted with ethyl acetate (3×150 ml)
  2. dry with materialThe combined organic phases were dried over MgSO4
  3. customthe solvents were removed under reduced pressure
  4. customThe crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate
  5. additionThe fractions containing the product
  6. customthe solvent evaporated under reduced pressure

出典と根拠

ORDレコード
ord-99a7ab8d30034128a1583139712bd11a
出典データセット
uspto-grants-2014_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08669266B2

反応ノート

読み込み中…

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