Potassium Carbonate → 1-(2'-amino-7-(5-chloro-2-fluorophenyl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazole]-3-yloxy)propan-2-one

HRID 335814Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 335814
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([F:11])=[C:6](B(O)O)[CH:7]=1.C(=O)([O-])[O-].[K+].[K+].[NH2:18][C:19]1[O:20][CH2:21][C:22]2([C:36]3[C:31](=[N:32][CH:33]=[C:34]([O:37][CH2:38][C:39](=[O:41])[CH3:40])[CH:35]=3)[O:30][C:29]3[C:24]2=[CH:25][C:26](Br)=[CH:27][CH:28]=3)[N:23]=1.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>[NH2:18][C:19]1[O:20][CH2:21][C:22]2([C:36]3[C:31](=[N:32][CH:33]=[C:34]([O:37][CH2:38][C:39](=[O:41])[CH3:40])[CH:35]=3)[O:30][C:29]3[C:24]2=[CH:25][C:26]([C:6]2[CH:7]=[C:2]([Cl:1])[CH:3]=[CH:4][C:5]=2[F:11])=[CH:27][CH:28]=3)[N:23]=1

Komponenten

7

Edukt 4

HCID 11430Potassium CarbonateHCID 312751,4-DioxaneHCID 3718925(5-Chloro-2-fluoro-phenyl)boronic acidHCID 673830821-(2'-amino-7-bromo-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazole]-3-yloxy)propan-2-one

Produkt 1

HCID 673830551-(2'-amino-7-(5-chloro-2-fluorophenyl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazole]-3-yloxy)propan-2-one

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

A vial charged with 5-chloro-2-fluorophenylboronic acid (0.431 g, 2.474 mmol), palladiumtetrakis (0.057 g, 0.049 mmol), potassium carbonate (0.684 g, 4.95 mmol), and 1-(2′-amino-7-bromo-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazole]-3-yloxy)propan-2-one (0.400 g, 0.990 mmol) was treated with 5 mL dioxane followed by 1 mL water. The vial was flushed with argon and was heated to 80° C. for 3 hours. The reaction mixture was diluted with EtOAc (25 mL) and dried over MgSO4. The organic layers were combined and concentrated, and the crude residue was purified by column chromatography yielding 1-(2′-amino-7-(5-chloro-2-fluorophenyl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazole]-3-yloxy)propan-2-one. MS m/z=454.0 [M+H].

Aufarbeitung

  1. customThe vial was flushed with argon
  2. additionThe reaction mixture was diluted with EtOAc (25 mL)
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated
  5. customthe crude residue was purified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-90a9f01216e04a9c85c54a0825cb7e88
Quelldatensatz
uspto-grants-2014_11
Patentnummer
US08883782B2

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