Reaktion #1127740

Reaktionsgleichung

1-{[(R)-5-(4-cyano-benzyl)-7-(3,5-dichloro-phenyl)-5-methyl-6-oxo-6,7-dihydro-5H-imidazo[1,2-a]imidazole-3-carbonyl]-amino}-cyclopropanecarboxylic acid

HOAt

EDC

Et3N

N′-(1-amino-cyclopropanecarbonyl)-hydrazinecarboxylic acid tert-butyl ester

→

N′-{1-[(1-{[(R)-5-(4-cyano-benzyl)-7-(3,5-dichloro-phenyl)-5-methyl-6-oxo-6,7-dihydro-5H-imidazo[1,2-a]imidazole-3-carbonyl]-amino}-cyclopropanecarbonyl)-amino]-cyclopropanecarbonyl}-hydrazinecarboxylic acid tert-butyl ester

Ausbeute 96.0%

Lösungsmittel

water

DMF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturthe reaction was heated at 70° C. for 15 h
2. 2
   TemperaturThe mixture was cooled to room temperature
3. 3
   Extraktionextracted with EtOAc (3×50 mL)
4. 4
   WaschenThe combined extracts were washed with saturated NaHCO3, 2N HCl, brine
5. 5
   Trocknendried with MgSO4
6. 6
   FiltrationThe mixture was filtered
7. 7
   Einengenconcentrated in vacuo

Vorschrift

To a solution of 1-{[(R)-5-(4-cyano-benzyl)-7-(3,5-dichloro-phenyl)-5-methyl-6-oxo-6,7-dihydro-5H-imidazo[1,2-a]imidazole-3-carbonyl]-amino}-cyclopropanecarboxylic acid (0.25 g, 0.48 mmol) in DMF (2 mL) was added HOAt (0.065 g, 0.48 mmol), EDC (0.092 g, 0.48 mmol), DMAP (0.005 g, 0.041 mmol), Et3N (0.066 mL, 0.48 mmol). The reaction allowed to stir for 10 min at room temperature. To this mixture was added N′-(1-amino-cyclopropanecarbonyl)-hydrazinecarboxylic acid tert-butyl ester (0.10 g, 0.48 mmol) and the reaction was heated at 70° C. for 15 h. The mixture was cooled to room temperature, diluted with water and extracted with EtOAc (3×50 mL). The combined extracts were washed with saturated NaHCO3, 2N HCl, brine and dried with MgSO4. The mixture was filtered and concentrated in vacuo to give N′-{1-[(1-{[(R)-5-(4-cyano-benzyl)-7-(3,5-dichloro-phenyl)-5-methyl-6-oxo-6,7-dihydro-5H-imidazo[1,2-a]imidazole-3-carbonyl]-amino}-cyclopropanecarbonyl)-amino]-cyclopropanecarbonyl}-hydrazinecarboxylic acid tert-butyl ester (0.33 g, 96%) as a yellow solid, m/z 721.9 [M+1]+.

Quelle