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Dichloromethane → 4-[2-(2-Isopropyl-5-methoxymethyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester

HRID 1800144
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1800144
Br[C:2]1[CH:26]=[CH:25][C:5]2[C:6]3[N:10]([CH2:11][CH2:12][O:13][C:4]=2[CH:3]=1)[CH:9]=[C:8]([C:14]1[N:15]([CH:22]([CH3:24])[CH3:23])[N:16]=[C:17]([CH2:19][O:20][CH3:21])[N:18]=1)[N:7]=3.B1([C:36]2[CH2:41][CH2:40][N:39]([C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])[CH2:38][CH:37]=2)OC(C)(C)C(C)(C)O1.C(=O)([O-])[O-].[Cs+].[Cs+].ClCCl>COCCOC.C1C=CC(P([C]2[CH][CH][CH][CH]2)C2C=CC=CC=2)=CC=1.C1C=CC(P([C]2[CH][CH][CH][CH]2)C2C=CC=CC=2)=CC=1.Cl[Pd]Cl.[Fe]>[C:45]([O:44][C:42]([N:39]1[CH2:38][CH:37]=[C:36]([C:2]2[CH:26]=[CH:25][C:5]3[C:6]4[N:10]([CH2:11][CH2:12][O:13][C:4]=3[CH:3]=2)[CH:9]=[C:8]([C:14]2[N:15]([CH:22]([CH3:24])[CH3:23])[N:16]=[C:17]([CH2:19][O:20][CH3:21])[N:18]=2)[N:7]=4)[CH2:41][CH2:40]1)=[O:43])([CH3:48])([CH3:46])[CH3:47]
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Komponenten

7

Edukt 4

HCID 6344DichloromethaneHCID 10796Cesium carbonateHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 582043878-Bromo-2-(2-isopropyl-5-methoxymethyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene

Produkt 1

HCID 58204682
4-[2-(2-Isopropyl-5-methoxymethyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester
Ausbeute 72 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178477754HCID 178477754, VerbindungKatalysatorHCID 80711,2-DimethoxyethaneLösungsmittel

Versuchsvorschrift

8-Bromo-2-(2-isopropyl-5-methoxymethyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene (250 mg, 0.60 mmol), 3,6-dihydro-2H-pyridine-1-N-Boc-4-boronic acid pinacol ester (370 mg, 1.20 mmol), cesium carbonate (585 mg, 1.79 mmol) and 1,1′-bis(diphenylphosphino)ferrocenepalladium (ii) dichloride, dichloromethane (24 mg, 0.03 mmol) were suspended in DME (4.0 mL), IMS (1.3 mL) and water (0.68 mL) and the reaction mixture purged with argon. The reaction mixture was heated using microwave irradiation in a sealed tube at 140° C. for 20 min. The reaction mixture was washed with water, extracted with DCM (2×15 mL) and the combined organics were washed with brine, dried (Na2SO4) then concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, eluting with 5% methanol in DCM) to yield 4-[2-(2-Isopropyl-5-methoxymethyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester as a brown foam (224 mg, 72%). LCMS: RT=5.08 min, [M+H]+=521

Aufarbeitung

  1. customIMS (1.3 mL) and water (0.68 mL) and the reaction mixture purged with argon
  2. temperatureThe reaction mixture was heated
  3. custommicrowave irradiation in a sealed tube at 140° C. for 20 min
  4. washThe reaction mixture was washed with water
  5. extractionextracted with DCM (2×15 mL)
  6. washthe combined organics were washed with brine
  7. dry with materialdried (Na2SO4)
  8. concentrationthen concentrated in vacuo
  9. washThe resultant residue was subjected to flash chromatography (SiO2, eluting with 5% methanol in DCM)

Quellen und Nachweise

ORD-Eintrag
ord-c9c0c96ddced4083b06c77148e946cc4
Quelldatensatz
uspto-grants-2013_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08343955B2

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