Water → 5-[6-(4-methylpyridin-2-ylamino)pyridin-2-yl]-N-(pyridin-4-ylmethyl)oxazol-2-amine

HRID 1854605Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1854605
Cl[C:2]1[O:3][C:4]([C:7]2[N:12]=[C:11]([NH:13][C:14]3[CH:19]=[C:18]([CH3:20])[CH:17]=[CH:16][N:15]=3)[CH:10]=[CH:9][CH:8]=2)=[CH:5][N:6]=1.[NH2:21][CH2:22][C:23]1[CH:28]=[CH:27][N:26]=[CH:25][CH:24]=1.O>CC(O)C>[CH3:20][C:18]1[CH:17]=[CH:16][N:15]=[C:14]([NH:13][C:11]2[N:12]=[C:7]([C:4]3[O:3][C:2]([NH:21][CH2:22][C:23]4[CH:28]=[CH:27][N:26]=[CH:25][CH:24]=4)=[N:6][CH:5]=3)[CH:8]=[CH:9][CH:10]=2)[CH:19]=1

Komponenten

5

Edukt 3

HCID 962WaterHCID 773174-PyridinemethanamineHCID 53311311HCID 53311311, Verbindung

Produkt 1

HCID 673458655-[6-(4-methylpyridin-2-ylamino)pyridin-2-yl]-N-(pyridin-4-ylmethyl)oxazol-2-amineAusbeute 55 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3776IsopropanolLösungsmittel

Versuchsvorschrift

A solution of [6-(2-chloro-oxazol-5-yl)-pyridin-2-yl]-(4-methyl-pyridin-2-yl)-amine (50 mg, 0.174 mmol) in iPrOH (5 ml) was treated with 4-aminomethylpyridine (53 μl) and heated to reflux for 40 h. The cooled mixture was treated with water and extracted with DCM. The combined organics were dried over MgSO4, filtered and evaporated under reduced pressure before purification by column chromatography on Al2O3 (Brockman grade III, 7% H2O), eluting with 2% EtOH in DCM. Precipitation from DCM with n-pentane afforded the title compound as pale yellow solid (34 mg, 55%). 1H NMR (300 MHz, DMSO-d6) δ 9.61 (s, 1H), 8.52 (d, J=4.6 Hz, 2H), 8.25 (t, J=5.8 Hz, 1H), 8.08 (d, J=5.0 Hz, 1H), 7.73 (s, 1H), 7.64 (t, J=7.9 Hz, 1H), 7.47 (d, J=8.3 Hz, 1H), 7.36 (d, J=4.9 Hz, 2H), 7.29 (s, 1H), 6.92 (d, J=7.6 Hz, 1H), 6.73 (d, J=5.0 Hz, 1H), 4.49 (d, J=5.7 Hz, 2H), 2.29 (s, 3H). (ESI+) m/z 359 (M+H)+.

Aufarbeitung

  1. temperatureheated
  2. temperatureto reflux for 40 h
  3. extractionextracted with DCM
  4. dry with materialThe combined organics were dried over MgSO4
  5. filtrationfiltered
  6. customevaporated under reduced pressure before purification by column chromatography on Al2O3 (Brockman grade III, 7% H2O)
  7. washeluting with 2% EtOH in DCM
  8. customPrecipitation from DCM with n-pentane

Quellen und Nachweise

ORD-Eintrag
ord-2489bbc078634981adf6341de5cf05e3
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08962665B2

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