Ethyl bromoacetate → 4-{(S)-4-tert-Butoxycarbonyl-2-[(5-ethoxycarbonylmethoxy-1-phenyl-1H-pyrazole-3-carbonyl)-amino]-butyryl}-piperazine-1-carboxylic acid ethyl ester

HRID 1908600ノート

反応式

HRID 1908600 の反応式
[CH2:1]([O:3][C:4]([N:6]1[CH2:11][CH2:10][N:9]([C:12](=[O:38])[C@@H:13]([NH:23][C:24]([C:26]2[CH:30]=[C:29]([OH:31])[N:28]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=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].C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:45]([O:47][C:48](=[O:51])[CH2:49]Br)[CH3:46]>CN(C=O)C.O>[CH2:1]([O:3][C:4]([N:6]1[CH2:11][CH2:10][N:9]([C:12](=[O:38])[C@@H:13]([NH:23][C:24]([C:26]2[CH:30]=[C:29]([O:31][CH2:49][C:48]([O:47][CH2:45][CH3:46])=[O:51])[N:28]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=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]

参加物

6

反応物 3

HCID 7748Ethyl bromoacetateHCID 10796Cesium carbonateHCID 178473388HCID 178473388、化合物

生成物 1

HCID 669200094-{(S)-4-tert-Butoxycarbonyl-2-[(5-ethoxycarbonylmethoxy-1-phenyl-1H-pyrazole-3-carbonyl)-amino]-butyryl}-piperazine-1-carboxylic acid ethyl ester

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
100 °C

実験手順

To a solution of 60 mg of 4-{(S)-4-tert-Butoxycarbonyl-2-[(5-hydroxy-1-phenyl-1H-pyrazole-3-carbonyl)-amino]-butyryl}-piperazine-1-carboxylic acid ethyl ester in 20 ml of DMF, 73 mg of cesium carbonate and 38 mg of Bromo-acetic acid ethyl ester was added and heated to 100° C. for 4 h. Then, the reaction mixture was diluted with water and extracted with ethyl acetate. The combined organic phases were dried over MgSO4 and the solvents were removed under reduced pressure. The crude product was used in the subsequent reaction.

後処理

  1. extractionextracted with ethyl acetate
  2. dry with materialThe combined organic phases were dried over MgSO4
  3. customthe solvents were removed under reduced pressure
  4. customThe crude product was used in the subsequent reaction

出典と根拠

ORDレコード
ord-3b6dfbfe98f847a0bd2f3a10485aef6f
出典データセット
uspto-grants-2013_12
特許番号
US08598179B2

反応ノート

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