(1S,2R)-Cyclohexane-1,2-diamine, N1-BOC protected → tert-butyl (1S,2R)-2-(5-(6-(1H-pyrazol-1-yl)pyridin-2-ylamino)-6-carbamoylpyridazin-3-ylamino)cyclohexylcarbamate

HRID 1396447Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1396447
[N:1]1([C:6]2[N:11]=[C:10]([NH:12][C:13]3[CH:18]=[C:17](Cl)[N:16]=[N:15][C:14]=3[C:20]([NH2:22])=[O:21])[CH:9]=[CH:8][CH:7]=2)[CH:5]=[CH:4][CH:3]=[N:2]1.[NH2:23][C@@H:24]1[CH2:29][CH2:28][CH2:27][CH2:26][C@@H:25]1[NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34]>CN1C(=O)CCC1.O>[N:1]1([C:6]2[N:11]=[C:10]([NH:12][C:13]3[CH:18]=[C:17]([NH:23][C@@H:24]4[CH2:29][CH2:28][CH2:27][CH2:26][C@@H:25]4[NH:30][C:31](=[O:37])[O:32][C:33]([CH3:35])([CH3:34])[CH3:36])[N:16]=[N:15][C:14]=3[C:20](=[O:21])[NH2:22])[CH:9]=[CH:8][CH:7]=2)[CH:5]=[CH:4][CH:3]=[N:2]1

Komponenten

5

Edukt 2

HCID 1514389(1S,2R)-Cyclohexane-1,2-diamine, N1-BOC protected2×HCID 866897874-(6-(1H-pyrazol-1-yl)pyridin-2-ylamino)-6-chloropyridazine-3-carboxamide

Produkt 1

HCID 86689788tert-butyl (1S,2R)-2-(5-(6-(1H-pyrazol-1-yl)pyridin-2-ylamino)-6-carbamoylpyridazin-3-ylamino)cyclohexylcarbamateAusbeute 34,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Reaktionsbedingungen

Temperatur
140 °C

Versuchsvorschrift

To a solution of 4-(6-(1H-pyrazol-1-yl)pyridin-2-ylamino)-6-chloropyridazine-3-carboxamide (131 mg, 415 μmol) in NMP (5 mL) was added tert-butyl (1S,2R)-2-aminocyclohexylcarbamate (133 mg, 622 μmol) and the mixture stirred at 140° C. for 24 h. A second portion of tert-butyl (1S,2R)-2-aminocyclohexylcarbamate (162 mg, 756 μmol) was added and the mixture heated at 140° C. for a further 24 h. The reaction mixture was cooled, and then diluted with water. The mixture was extracted with ethyl acetate (3×50 mL) then the combined organic phases were washed with brine (50 mL), then concentrated in vacuo, and finally purified by chromatography (silica, 12 g RediSep Gold, 2 to 6% of a 99.5:0.5 methanol:ammonium hydroxide solution in dichloromethane, 20 min) to give tert-butyl (1S,2R)-2-(5-(6-(1H-pyrazol-1-yl)pyridin-2-ylamino)-6-carbamoylpyridazin-3-ylamino)cyclohexylcarbamate (70 mg, 142 μmol, 34%) as a beige solid. MS (EI/CI) m/z: 494.3 [M+H].

Aufarbeitung

  1. temperaturethe mixture heated at 140° C. for a further 24 h
  2. temperatureThe reaction mixture was cooled
  3. extractionThe mixture was extracted with ethyl acetate (3×50 mL)
  4. washthe combined organic phases were washed with brine (50 mL)
  5. concentrationconcentrated in vacuo
  6. customfinally purified by chromatography (silica, 12 g RediSep Gold, 2 to 6% of a 99.5:0.5 methanol:ammonium hydroxide solution in dichloromethane, 20 min)

Quellen und Nachweise

ORD-Eintrag
ord-ea00bfabcaa6464a98a86b7055eb5cf3
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08901124B2

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