(1S,2S)-2-(4-{3-fluoro-4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carbonyl)-cyclopentanecarboxylic acid benzyl ester → (1S,2S)-2-(4-{3-fluoro-4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carbonyl)-cyclopentanecarboxylic acid

HRID 1641869Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1641869
C([O:8][C:9]([C@H:11]1[CH2:15][CH2:14][CH2:13][C@@H:12]1[C:16]([N:18]1[CH2:23][CH2:22][N:21]([C:24]2[CH:29]=[CH:28][C:27]([NH:30][C:31]([C:33]3[N:34]=[C:35]([C:42]4[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=4)[O:36][C:37]=3[C:38]([F:41])([F:40])[F:39])=[O:32])=[C:26]([F:48])[CH:25]=2)[CH2:20][CH2:19]1)=[O:17])=[O:10])C1C=CC=CC=1>CO.[OH-].[Li+].O>[F:48][C:26]1[CH:25]=[C:24]([N:21]2[CH2:22][CH2:23][N:18]([C:16]([C@H:12]3[CH2:13][CH2:14][CH2:15][C@@H:11]3[C:9]([OH:10])=[O:8])=[O:17])[CH2:19][CH2:20]2)[CH:29]=[CH:28][C:27]=1[NH:30][C:31]([C:33]1[N:34]=[C:35]([C:42]2[CH:43]=[CH:44][CH:45]=[CH:46][CH:47]=2)[O:36][C:37]=1[C:38]([F:40])([F:41])[F:39])=[O:32]

Komponenten

5

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

To the solution of (1S,2S)-2-(4-{3-fluoro-4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carbonyl)-cyclopentanecarboxylic acid benzyl ester in methanol, lithium hydroxide and water were added. The so formed mixture was stirred at 25° C. overnight. Solvent was removed and the residue was resuspended in ethyl acetate and water. Citric acid was added to acidify the mixture. Organic layer was concentrated and the residue was purified on a reverse phase HPLC system to give (1S,2S)-2-(4-{3-fluoro-4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carbonyl)-cyclopentanecarboxylic acid as a white solid. LCMS calcd for C28H26F4N4O5 (m/e) 574, obsd 575 (M+H).

Aufarbeitung

  1. customThe so formed mixture
  2. customSolvent was removed
  3. additionCitric acid was added
  4. concentrationOrganic layer was concentrated
  5. customthe residue was purified on a reverse phase HPLC system

Quellen und Nachweise

ORD-Eintrag
ord-9fec69529e7d43298273c30a19981ad4
Quelldatensatz
uspto-grants-2012_02
Patentnummer
US08115011B2

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