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Cesium carbonate → 2-{4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}isobutyramide

HRID 1530583
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1530583
[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[CH:21][C:20]([S:23][CH:24]5[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]5)=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2].Br[C:31]([CH3:36])([CH3:35])[C:32]([NH2:34])=[O:33].C([O-])([O-])=O.[Cs+].[Cs+]>CC#N>[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[CH:21][C:20]([S:23][CH:24]5[CH2:29][CH2:28][N:27]([C:31]([CH3:36])([CH3:35])[C:32]([NH2:34])=[O:33])[CH2:26][CH2:25]5)=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2]
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Komponenten

5

Edukt 3

HCID 10796Cesium carbonateHCID 1012352-Bromo-2-methylpropanamideHCID 683129382-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-9-(piperidin-4-ylsulfanyl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulene

Produkt 1

HCID 683131442-{4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}isobutyramideAusbeute 89 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

A mixture of 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-9-(piperidin-4-ylsulfanyl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulene from Example 2 (0.244 g, 0.594 mmol), 2-bromo-2-methylpropionamide (0.494 g, 2.976 mmol) and Cs2CO3 (0.774 g, 2.376 mmol) in CH3CN (15 mL) was heated at 120° C. for 2 h using microwave irradiation. The crude mixture was filtered through a pad of Celite® and the filtrate was concentrated in vacuo. The resulting residue was purified by column chromatography (Si-PCC, gradient 2-8% 2M NH3/MeOH in DCM) to give 0.261 g (89% yield) of 2-{4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}isobutyramide as a colorless foam. A portion of the resulting residue (28 mg) was further purified by column chromatography (C18, gradient 15-55% MeOH in 0.5% TFA/H2O) and then loaded onto an Isolute® SCX-2 cartridge which was washed with MeOH and the product eluted with 0.5M NH3/MeOH affording the title compound (13 mg). LCMS: RT 2.92 min [M+H]+ 496.1.

Aufarbeitung

  1. custommicrowave irradiation
  2. filtrationThe crude mixture was filtered through a pad of Celite®
  3. concentrationthe filtrate was concentrated in vacuo
  4. customThe resulting residue was purified by column chromatography (Si-PCC, gradient 2-8% 2M NH3/MeOH in DCM)

Quellen und Nachweise

ORD-Eintrag
ord-3aa99c05d99d45cba51d513da9aa1594
Quelldatensatz
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09090628B2

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