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 1908600Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1908600
[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]

Komponenten

6

Edukt 3

HCID 7748Ethyl bromoacetateHCID 10796Cesium carbonateHCID 178473388HCID 178473388, Verbindung

Produkt 1

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

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

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.

Aufarbeitung

  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

Quellen und Nachweise

ORD-Eintrag
ord-3b6dfbfe98f847a0bd2f3a10485aef6f
Quelldatensatz
uspto-grants-2013_12
Patentnummer
US08598179B2

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