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Cesium carbonate → 4-{(S)-2-[(4-Benzyloxycarbonylmethoxy-7-methyl-naphthalene-2-carbonyl)-amino]-4-tert-butoxycarbonyl-butyryl}-piperazine-1-carboxylic acid butyl ester

HRID 1185506
ノート
印刷プレビュー

反応式

HRID 1185506 の反応式
[CH2:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14](=[O:40])[C@@H:15]([NH:25][C:26]([C:28]2[CH:37]=[C:36]([OH:38])[C:35]3[C:30](=[CH:31][C:32]([CH3:39])=[CH:33][CH:34]=3)[CH:29]=2)=[O:27])[CH2:16][CH2:17][C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:10][CH2:9]1)=[O:7])[CH2:2][CH2:3][CH3:4].C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:47]([O:54][C:55](=[O:58])[CH2:56]Br)[C:48]1[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=1>CN(C=O)C.O>[CH2:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][N:11]([C:14](=[O:40])[C@@H:15]([NH:25][C:26]([C:28]2[CH:37]=[C:36]([O:38][CH2:56][C:55]([O:54][CH2:47][C:48]3[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=3)=[O:58])[C:35]3[C:30](=[CH:31][C:32]([CH3:39])=[CH:33][CH:34]=3)[CH:29]=2)=[O:27])[CH2:16][CH2:17][C:18]([O:20][C:21]([CH3:23])([CH3:22])[CH3:24])=[O:19])[CH2:12][CH2:13]1)=[O:7])[CH2:2][CH2:3][CH3:4]
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 3

HCID 10796Cesium carbonateHCID 62576Benzyl bromoacetateHCID 68597303HCID 68597303、化合物

生成物 1

HCID 686000914-{(S)-2-[(4-Benzyloxycarbonylmethoxy-7-methyl-naphthalene-2-carbonyl)-amino]-4-tert-butoxycarbonyl-butyryl}-piperazine-1-carboxylic acid butyl ester

試薬・触媒・溶媒 2

HCID 962Water溶媒
HCID 6228
Dimethylformamide
溶媒

実験手順

To a solution of 1.0 g 4-{(S)-4-tert-Butoxycarbonyl-2-[(4-hydroxy-7-methyl-naphthalene-2-carbonyl)-amino]-butyryl}-piperazine-1-carboxylic acid butyl ester in 12 ml of DMF, 645 mg of cesium carbonate and 447 mg of Bromo-acetic acid benzyl ester were added and the reaction mixture was stirred for 2 h at RT. Then, the reaction mixture was diluted with water and extracted with ethyl acetate. The organic phase was dried over MgSO4 and the solvents were removed under reduced pressure. The isolated crude product was pure enough for the next reaction step. Yield: 710 mg.

後処理

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic phase was dried over MgSO4
  3. customthe solvents were removed under reduced pressure
  4. customThe isolated crude product
  5. customwas pure enough for the next reaction step

出典と根拠

ORDレコード
ord-2c6270b7bfc8426d85f0d8b66c17fb47
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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