Reaktion #2360259

Reaktionsgleichung

4-(4-aminophenyl)-6-ethyl-8,8-dimethyl-2-(8-oxa-3-azabicyclo[3.2.1]oct-3-yl)-7,8-dihydro-6H-9-oxa-1,3,6-triazabenzocyclohepten-5-one

3-difluoromethoxyphenylamine

DIEA

phenyl choroformate

→

1-(3-difluoromethoxyphenyl)-3-{4-[6-ethyl-8,8-dimethyl-2-(8-oxa-3-azabicyclo[3.2.1]oct-3-yl)-5-oxo-5,6,7,8-tetrahydro-9-oxa-1,3,6-triazabenzocyclohepten-4-yl]phenyl}urea

Ausbeute 124.4%

Lösungsmittel

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturthe resulting mixture is heated for 1 hour at 120° C. in a Biotage microwave machine
2. 2
   SonstigeThe reaction medium is evaporated under reduced pressure
3. 3
   SonstigeThe residue is chromatographed on silica gel
4. 4
   Wascheneluting with a DCM/MeOH mixture from (100/0 v/v) up to (98/2 v/v)

Vorschrift

96.84 mg of 3-difluoromethoxyphenylamine (590.31 μmol), 206.20 μl of DIEA (1.18 mmol) and 30.81 μl of phenyl choroformate (237.83 μmol) are added to 4 ml of THF in a microwave tube. The mixture is stirred at room temperature for 20 minutes. 250 mg of 4-(4-aminophenyl)-6-ethyl-8,8-dimethyl-2-(8-oxa-3-azabicyclo[3.2.1]oct-3-yl)-7,8-dihydro-6H-9-oxa-1,3,6-triazabenzocyclohepten-5-one (590.31 μmol) are added and the resulting mixture is heated for 1 hour at 120° C. in a Biotage microwave machine. The reaction medium is evaporated under reduced pressure. The residue is chromatographed on silica gel, eluting with a DCM/MeOH mixture from (100/0 v/v) up to (98/2 v/v) to give 180 mg of 1-(3-difluoromethoxyphenyl)-3-{4-[6-ethyl-8,8-dimethyl-2-(8-oxa-3-azabicyclo[3.2.1]oct-3-yl)-5-oxo-5,6,7,8-tetrahydro-9-oxa-1,3,6-triazabenzocyclohepten-4-yl]phenyl}urea.

Quelle