Dimethylformamide → 2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-9-(2-methyl-pyridin-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene

HRID 707882

Reaktionsgleichung

Reaktionsgleichung von HRID 707882
Br[C:2]1[CH:3]=[CH:4][C:5]2[O:14][CH2:13][CH2:12][C:11]3[S:10][C:9]([C:15]4[N:16]([CH:20]([CH3:22])[CH3:21])[N:17]=[CH:18][N:19]=4)=[N:8][C:7]=3[C:6]=2[CH:23]=1.[CH3:24][C:25]1[C:30](B(O)O)=[CH:29][CH:28]=[CH:27][N:26]=1.C([O-])(=O)C.[K+].CN(C=O)C>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>[CH:20]([N:16]1[C:15]([C:9]2[S:10][C:11]3[CH2:12][CH2:13][O:14][C:5]4[CH:4]=[CH:3][C:2]([C:30]5[C:25]([CH3:24])=[N:26][CH:27]=[CH:28][CH:29]=5)=[CH:23][C:6]=4[C:7]=3[N:8]=2)=[N:19][CH:18]=[N:17]1)([CH3:22])[CH3:21]

Komponenten

7

Edukt 4

HCID 6228DimethylformamideHCID 517044Potassium AcetateHCID 201116472-Methylpyridine-3-boronic acidHCID 532349749-Bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene

Produkt 1

HCID 582040832-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-9-(2-methyl-pyridin-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azuleneAusbeute 28,7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
105 °C

Versuchsvorschrift

To 9-Bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene from Example 6 (0.388 g, 0.992 mmol), 2-methylpyridin-3-ylboronic acid (0.176 g, 1.29 mmol), potassium acetate (0.389 g, 3.96 mmol), and tetrakis(triphenylphosphine)palladium(0) (57 mg, 0.049 mmol) was added DMF (20 mL) and water (1 mL). Nitrogen was bubbled through the reaction mixture for 5 minutes. The reaction mixture was allowed to stir at 105° C. for 24 hours before cooling, diluting with EtOAc, and filtering through a pad of celite. The filtrate was concentrated under reduced pressure and diluted with EtOAc. The solution was washed sequentially with water, and brine, before drying over MgSO4 and concentrating under reduced pressure. The crude material was dissolved in DMF and purified by reverse phase HPLC to provide 128 (115 mg, 28%). 1H NMR (400 MHz, DMSO) δ 8.44 (dd, J=24.8, 2.7, 2H), 8.10 (s, 1H), 7.69 (t, J=8.1, 1H), 7.35 (ddd, J=12.5, 7.9, 3.6, 2H), 7.19 (d, J=8.3, 1H), 5.74 (dt, J=13.2, 6.7, 1H), 4.44 (t, J=4.9, 2H), 3.49 (t, J=4.9, 2H), 2.53 (s, 3H), 1.48 (d, J=6.6, 6H). MS (ESI(+)): m/z 404.1 (M+H).

Aufarbeitung

  1. customNitrogen was bubbled through the reaction mixture for 5 minutes
  2. temperaturebefore cooling
  3. additiondiluting with EtOAc
  4. filtrationfiltering through a pad of celite
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. additiondiluted with EtOAc
  7. washThe solution was washed sequentially with water, and brine
  8. dry with materialbefore drying over MgSO4
  9. concentrationconcentrating under reduced pressure
  10. dissolutionThe crude material was dissolved in DMF
  11. custompurified by reverse phase HPLC

Quellen und Nachweise

ORD-Eintrag
ord-b58c2c78e881411f9169fc1e860d7458
Quelldatensatz
uspto-grants-2015_11
Patentnummer
US09175009B2

Verknüpfte Notizen

Wird geladen…