Hydrochloric Acid → 1-[(3-Oxo-2-oxa-bicyclo[2.2.1]heptane-5-carbonyl)-amino]-2-vinyl-cyclo-propane carboxylic acid ethyl ester

HRID 643849Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 643849
[O:1]=[C:2]1[CH:7]2[CH2:8][CH:4]([CH2:5][CH:6]2[C:9]([OH:11])=O)[O:3]1.Cl.[CH2:13]([O:15][C:16]([C:18]1([NH2:23])[CH2:20][CH:19]1[CH:21]=[CH2:22])=[O:17])[CH3:14].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C.C(Cl)Cl>[CH2:13]([O:15][C:16]([C:18]1([NH:23][C:9]([CH:6]2[CH2:5][CH:4]3[CH2:8][CH:7]2[C:2](=[O:1])[O:3]3)=[O:11])[CH2:20][CH:19]1[CH:21]=[CH2:22])=[O:17])[CH3:14]

Komponenten

8

Edukt 5

HCID 313Hydrochloric AcidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 22082824Ethyl 1-amino-2-vinylcyclopropanecarboxylateHCID 462449653-Oxo-2-oxabicyclo[2.2.1]heptane-5-carboxylic acid

Produkt 1

HCID 668704341-[(3-Oxo-2-oxa-bicyclo[2.2.1]heptane-5-carbonyl)-amino]-2-vinyl-cyclo-propane carboxylic acid ethyl esterAusbeute 99 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 33 (857 mg, 5.5 mmol), in DMF (14 mL) and DCM (25 mL) at room temperature, was added the hydrochloride of 1-amino-2-vinyl-cyclopropanecarboxylic acid ethyl ester, prepared as described in WO03/099274, (1.15 g, 6.0 mmol), HATU (2.29 g, 6.0 mmol) and DIPEA (3.82 mL, 22 mmol). The reaction was stirred under N2-atmosphere at ambient temperature for 1 h. LC/MS analysis showed complete conversion and the reaction mixture was concentrated in vacuo. The residue was redissolved in DCM (100 mL) and 0.1 M HCl (aq) and the phases were separated. The organic phase was washed with NaHCO3 (aq) and brine, dried (MgSO4) and filtered. Removal of the solvent in vacuo afforded the target compound (1.6 g, 99%). LC/MS>95%, m/z (ESI+)=294 (MH+)

Aufarbeitung

  1. customprepared
  2. concentrationthe reaction mixture was concentrated in vacuo
  3. dissolutionThe residue was redissolved in DCM (100 mL)
  4. custom0.1 M HCl (aq) and the phases were separated
  5. washThe organic phase was washed with NaHCO3 (aq) and brine
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. customRemoval of the solvent in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-1b7eff7ec619485a9872c5737bd8e6e1
Quelldatensatz
uspto-grants-2010_04
Patentnummer
US07700552B2

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