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

HRID 1011740
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1011740
CCN(C(C)C)C(C)C.[CH3:10][O:11][CH2:12][C@@H:13]([O:15][C:16]1[CH:17]=[C:18]([CH:22]=[C:23]([O:25][CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[CH:24]=1)[C:19]([OH:21])=O)[CH3:14].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:57][C:58]1[CH:62]=[CH:61][N:60]([C:63]([O:65][C:66]([CH3:69])([CH3:68])[CH3:67])=[O:64])[N:59]=1>CN(C=O)C.O>[CH3:14][C@H:13]([O:15][C:16]1[CH:17]=[C:18]([C:19]([NH:57][C:58]2[CH:62]=[CH:61][N:60]([C:63]([O:65][C:66]([CH3:69])([CH3:68])[CH3:67])=[O:64])[N:59]=2)=[O:21])[CH:22]=[C:23]([O:25][CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[CH:24]=1)[CH2:12][O:11][CH3:10]
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Komponenten

7

Edukt 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 51358380tert-Butyl 3-amino-1H-pyrazole-1-carboxylateHCID 59127150Benzoic acid, 3-[(1S)-2-methoxy-1-methylethoxy]-5-(phenylmethoxy)-

Produkt 1

HCID 59127136
tert-butyl 3-({3-(benzyloxy)-5-[(1S)-2-methoxy-1-methylethoxy]benzoyl}amino)-1H-pyrazole-1-carboxylate
Ausbeute 74,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

DIPEA (28.5 mL, 164 mmol) was added to a suspension of 3-[(1S)-2-methoxy-(1-methylethyl)oxy]-5-{[phenylmethyl]oxy}benzoic acid (20.7 g, 65.6 mmol), HATU (31.2 g, 82.0 mmol) and 1,1-dimethylethyl 3-amino-1H-pyrazole-1-carboxylate (15.0 g, 82.0 mmol) in DMF (30 mL) and the reaction mixture stirred for 16 hours at RT. Water (250 mL) was added and the reaction mixture extracted with diethyl ether (3×150 mL). The organic layer was washed with saturated brine solution and dried (MgSO4). The filtrate was concentrated in vacuo and the residue crystallised on standing. The crystals were washed with isohexane to give to give the desired material as yellow crystals (23.4 g; 73%). m/z 482 (M+H)+.

Aufarbeitung

  1. extractionthe reaction mixture extracted with diethyl ether (3×150 mL)
  2. washThe organic layer was washed with saturated brine solution
  3. dry with materialdried (MgSO4)
  4. concentrationThe filtrate was concentrated in vacuo
  5. customthe residue crystallised
  6. washThe crystals were washed with isohexane
  7. customto give

Quellen und Nachweise

ORD-Eintrag
ord-7c1660b563e14009965da41fb38d1e0c
Quelldatensatz
uspto-grants-2011_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07977328B2

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