Water → [6-(2-Benzoxazole-2-yl-oxazol-5-yl)-pyridin-2-yl]-(4-methyl-pyridin-2-yl)-amine

HRID 1854618Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1854618
I[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.[O:21]1[C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=2[N:23]=[CH:22]1.O(C(C)(C)C)[Li].O>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[O:21]1[C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=2[N:23]=[C:22]1[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

Komponenten

7

Edukt 4

HCID 962WaterHCID 9228BenzoxazoleHCID 53311312HCID 53311312, VerbindungHCID 178506942HCID 178506942, Verbindung

Produkt 1

HCID 53312246[6-(2-Benzoxazole-2-yl-oxazol-5-yl)-pyridin-2-yl]-(4-methyl-pyridin-2-yl)-amineAusbeute 12,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A sealed tube with a teflon screw cap was charged with a mixture of [6-(2-iodo-oxazol-5-yl)-pyridin-2-yl]-(4-methyl-pyridin-2-yl)-amine (100 mg, 0.264 mmol), benzoxazole (31 mg, 0.264 mmol), Pd(PPh3)4 (15 mg, 0.013 mmol) and LiOtBu (42 mg, 0.529 mmol) in dry dioxane (5 ml) and heated to 100° C. for 24 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 SiO2 eluting with 30% EtOAc in cyclohexane to afford the title compound as a beige solid (12 mg, 12%). 1H NMR (400 MHz, DMSO-d6) δ 9.88 (s, 1H), 8.14-8.11 (m, 2H), 7.99-7.88 (m, 3H), 7.83 (t, J=7.9 Hz, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.61-7.51 (m, 2H), 7.46 (d, J=7.3 Hz, 1H), 6.80 (d, J=5.0 Hz, 1H), 2.41 (s, 3H). (ESI+) m/z 370 (M+H)+. Retention time=2.88 mins (method 1).

Aufarbeitung

  1. extractionextracted with DCM
  2. dry with materialThe combined organics were dried over MgSO4
  3. filtrationfiltered
  4. customevaporated under reduced pressure before purification by column chromatography on SiO2 eluting with 30% EtOAc in cyclohexane

Quellen und Nachweise

ORD-Eintrag
ord-86f11d124dca4080933a977e4ceece23
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08962665B2

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