Cesium carbonate → tert-butyl ((1S,2R)-2-((6-(2,6-dichloro-3,5-dimethoxyphenyl)quinazolin-2-yl)amino)cyclohexyl)carbamate

HRID 56377

Reaktionsgleichung

Reaktionsgleichung von HRID 56377
Cl[C:2]1[N:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:12]3[C:17]([Cl:18])=[C:16]([O:19][CH3:20])[CH:15]=[C:14]([O:21][CH3:22])[C:13]=3[Cl:23])[CH:8]=2)[N:3]=1.[NH2:24][C@H:25]1[CH2:30][CH2:29][CH2:28][CH2:27][C@@H:26]1[NH:31][C:32](=[O:38])[O:33][C:34]([CH3:37])([CH3:36])[CH3:35].C([O-])([O-])=O.[Cs+].[Cs+].CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C>CC(N(C)C)=O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Cl:23][C:13]1[C:14]([O:21][CH3:22])=[CH:15][C:16]([O:19][CH3:20])=[C:17]([Cl:18])[C:12]=1[C:7]1[CH:8]=[C:9]2[C:4](=[CH:5][CH:6]=1)[N:3]=[C:2]([NH:24][C@@H:25]1[CH2:30][CH2:29][CH2:28][CH2:27][C@@H:26]1[NH:31][C:32](=[O:38])[O:33][C:34]([CH3:36])([CH3:35])[CH3:37])[N:11]=[CH:10]2

Komponenten

7

Edukt 4

HCID 10796Cesium carbonateHCID 1514391tert-butyl N-[(1S,2S)-2-aminocyclohexyl]carbamateHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 899217722-Chloro-6-(2,6-dichloro-3,5-dimethoxyphenyl)quinazoline

Produkt 1

HCID 118043439tert-butyl ((1S,2R)-2-((6-(2,6-dichloro-3,5-dimethoxyphenyl)quinazolin-2-yl)amino)cyclohexyl)carbamateAusbeute 45,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 31374DimethylacetamideLösungsmittel

Reaktionsbedingungen

Temperatur
125 °C

Versuchsvorschrift

A mixture of 2-chloro-6-(2,6-dichloro-3,5-dimethoxyphenyl)quinazoline (0.1 g, 0.27 mmol), tert-butyl ((1S,2S)-2-aminocyclohexyl)carbamate (75 mg, 0.35 mmol), Cs2CO3 (176 mg, 0.54 mmol), X-Phos (13 mg, 0.027 mmol) and Pd2dba3 (12.5 mg, 0.013 mmol) in DMA (1.8 mL) was degassed with N2 for 5 mins and heated in a microwave reactor at 125° C. for 30 mins. The mixture was cooled to room temperature, filtered through celite and washed with water followed by saturated brine solution. The residue was purified by silica gel column chromatography to afford tert-butyl ((1S,2R)-2-((6-(2,6-dichloro-3,5-dimethoxyphenyl)quinazolin-2-yl)amino)cyclohexyl)carbamate (67 mg, 45%). MS (ES+) C27H32Cl2N4O4 requires: 546, found: 547 [M+H]+.

Aufarbeitung

  1. customwas degassed with N2 for 5 mins
  2. temperatureThe mixture was cooled to room temperature
  3. filtrationfiltered through celite
  4. washwashed with water
  5. customThe residue was purified by silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-bc6fea8b125d4e8ebe4d6b090353c70d
Quelldatensatz
uspto-grants-2016_09
Patentnummer
US09434700B2

Verknüpfte Notizen

Wird geladen…