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tert-butyl 3-({3-(benzyloxy)-5-[(1S)-2-methoxy-1-methylethoxy]benzoyl}amino)-1H-pyrazole-1-carboxylate → tert-Butyl 3-({3-hydroxy-5-[(1S)-2-methoxy-1-methylethoxy]benzoyl}amino)-1H-pyrazole-1-carboxylate

HRID 1175910
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1175910
[CH3:1][C@H:2]([O:6][C:7]1[CH:8]=[C:9]([C:21]([NH:23][C:24]2[CH:28]=[CH:27][N:26]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[N:25]=2)=[O:22])[CH:10]=[C:11]([O:13]CC2C=CC=CC=2)[CH:12]=1)[CH2:3][O:4][CH3:5]>C1COCC1.C(O)C>[OH:13][C:11]1[CH:10]=[C:9]([C:21]([NH:23][C:24]2[CH:28]=[CH:27][N:26]([C:29]([O:31][C:32]([CH3:33])([CH3:35])[CH3:34])=[O:30])[N:25]=2)=[O:22])[CH:8]=[C:7]([O:6][C@@H:2]([CH3:1])[CH2:3][O:4][CH3:5])[CH:12]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

4

Edukt 1

HCID 59127136tert-butyl 3-({3-(benzyloxy)-5-[(1S)-2-methoxy-1-methylethoxy]benzoyl}amino)-1H-pyrazole-1-carboxylate

Produkt 1

HCID 59127185tert-Butyl 3-({3-hydroxy-5-[(1S)-2-methoxy-1-methylethoxy]benzoyl}amino)-1H-pyrazole-1-carboxylateAusbeute 97 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A solution of 1,1-dimethylethyl 3-[({3-{[(1S)-1-methyl-2-(methyloxy)ethyl]oxy}-5-[(phenylmethyl)oxy]phenyl}carbonyl)amino]-1H-pyrazole-1-carboxylate (23 g, 47.8 mmol) in THF (140 mL) and ethanol (140 mL) was evacuated and purged with nitrogen (×3). 10% Palladium on carbon (2.3 g; 10% w/w) was added and reaction mixture was evacuated and finally purged with hydrogen gas. The reaction mixture was left to stir at RT under a hydrogen balloon for 16 hours. The palladium on carbon was filtered through diatomaceous earth and the filtrate concentrated in vacuo to give a white foam (18 g, 97%).

Aufarbeitung

  1. custompurged with nitrogen (×3)
  2. addition10% Palladium on carbon (2.3 g; 10% w/w) was added
  3. customreaction mixture
  4. customwas evacuated
  5. customfinally purged with hydrogen gas
  6. waitThe reaction mixture was left
  7. filtrationThe palladium on carbon was filtered through diatomaceous earth
  8. concentrationthe filtrate concentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-223aff2f4dde4af99afd0bc0720d7758
Quelldatensatz
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07842694B2

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