Potassium Carbonate → HCID 86670105, Verbindung

HRID 1631719Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1631719
Br[C:2]1[N:7]=[C:6]([CH2:8][N:9]2[CH2:18][CH:17]3[CH2:19][O:20][CH2:21][CH2:22][N:16]3[C:15]3[N:14]=[C:13]([Cl:23])[N:12]=[CH:11][C:10]2=3)[CH:5]=[CH:4][CH:3]=1.[C:24]([O-])([O-])=O.[K+].[K+].CB1OB(C)OB(C)O1>O1CCOCC1.O.C(OCC)(=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[Cl:23][C:13]1[N:12]=[CH:11][C:10]2[N:9]([CH2:8][C:6]3[CH:5]=[CH:4][CH:3]=[C:2]([CH3:24])[N:7]=3)[CH2:18][CH:17]3[CH2:19][O:20][CH2:21][CH2:22][N:16]3[C:15]=2[N:14]=1

Komponenten

8

Edukt 3

HCID 11430Potassium CarbonateHCID 574072TrimethylboroxineHCID 866701045-((6-Bromopyridin-2-yl)methyl)-2-chloro-5,6,6a,7,9,10-hexahydro-[1,4]oxazino[3,4-h]pteridine

Produkt 1

HCID 86670105HCID 86670105, VerbindungAusbeute 57,4 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)KatalysatorHCID 962WaterLösungsmittelHCID 8857Ethyl AcetateLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a 10 mL vial was added 5-((6-bromopyridin-2-yl)methyl)-2-chloro-5,6,6a,7,9,10-hexahydro-[1,4]oxazino[3,4-h]pteridine (PREPARATION x27, 75 mg, 0.189 mmol), K2CO3 (52.3 mg, 0.378 mmol), PdCl2(dppf) (13.83 mg, 0.019 mmol) and 2,4,6-trimethyl-1,3,5,2,4,6-trioxatriborinane (0.053 mL, 0.378 mmol) in dioxane (2 mL) and H2O (0.4 mL) to give an orange suspension. The reaction vial was sealed, heated to 100° C., and stirred overnight. The reaction mixture was then diluted with ethyl acetate and washed with aqueous saturated NH4Cl (3×10 mL). The combined organic layers were dried over MgSO4, filtered, and concentrated in vacuo to give crude product, which was loaded onto an ISCO® silica gel cartridge (4 g) and eluted using an ethyl acetate/hexane gradient. The product was collected and concentrated in vacuo to afford the title compound as a yellow solid (36 mg, 57%). 1H NMR (400 MHz, DMSO-d6) δ 2.45 (s, 3H), 2.92-3.05 (m, 1H), 3.12-3.27 (m, 2H), 3.40-3.52 (m, 2H), 3.61-3.74 (m, 1H), 3.85-4.00 (m, 2H), 4.18-4.28 (m, 1H), 4.35-4.58 (m, 2H), 7.10-7.17 (m, 2H), 7.30 (s, 1H), 7.60-7.68 (m, 1H). ESI-MS m/z [M+H]+ calc'd for C16H18ClN5O, 331.12. found 331.2.

Aufarbeitung

  1. customto give an orange suspension
  2. customThe reaction
  3. customvial was sealed
  4. washwashed with aqueous saturated NH4Cl (3×10 mL)
  5. dry with materialThe combined organic layers were dried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customto give crude product, which
  9. washeluted
  10. customThe product was collected
  11. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-4a2d3c7e61ae4437b098ef36d1080e6d
Quelldatensatz
uspto-grants-2014_07
Patentnummer
US08791107B2

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