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Ethyl Acetate → HCID 68313002, Verbindung

HRID 1530440
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1530440
[H-].[H-].[H-].[H-].[Li+].[Al+3].C([O:14][C:15](=O)[C:16]([O:28][C:29]1[CH:51]=[CH:50][C:32]2[C:33]3[N:37]([CH2:38][CH2:39][O:40][C:31]=2[CH:30]=1)[CH:36]=[C:35]([C:41]1[N:42]([CH:47]([CH3:49])[CH3:48])[N:43]=[C:44]([CH3:46])[N:45]=1)[N:34]=3)([CH3:27])[CH2:17][CH2:18][O:19][CH2:20][C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)C1C=CC=CC=1.CCOC(C)=O.[C@H](O)(C([O-])=O)[C@@H](O)C([O-])=O.[Na+].[K+]>C1COCC1>[CH2:20]([O:19][CH2:18][CH2:17][C:16]([O:28][C:29]1[CH:51]=[CH:50][C:32]2[C:33]3[N:37]([CH2:38][CH2:39][O:40][C:31]=2[CH:30]=1)[CH:36]=[C:35]([C:41]1[N:42]([CH:47]([CH3:49])[CH3:48])[N:43]=[C:44]([CH3:46])[N:45]=1)[N:34]=3)([CH3:27])[CH2:15][OH:14])[C:21]1[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 8857Ethyl AcetateHCID 9357Potassium Sodium TartrateHCID 21226445Aluminium lithium hydrideHCID 68312931HCID 68312931, Verbindung

Produkt 1

HCID 68313002HCID 68313002, VerbindungAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028
Tetrahydrofuran
Lösungsmittel
2×

Versuchsvorschrift

To a suspension of LiAlH4 (4.4 mg, 0.116 mmol) in THF (1 mL) was added a solution of 4-benzyloxy-2-[2-(2-isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-8-yloxy]-2-methylbutyric acid benzyl ester (36 mg, 0.058 mmol) in THF (2 mL) and stirring at RT was continued for 2.5 h. To the reaction mixture was added EtOAc (0.5 mL) and stirring was continued for 10 min. An aqueous solution of Rochelle's salt was then added and the aqueous phase was extracted with EtOAc (×2). The combined organic phases were washed with water, followed by brine, then dried (Na2SO4) and concentrated in vacuo. The resulting residue was purified by column chromatography (Si-PCC, gradient 3-12% MeOH in DCM) affording 4-Benzyloxy-2-[2-(2-isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-8-yloxy]-2-methylbutan-1-ol (29 mg, 98%). 1H NMR (CDCl3, 400 MHz): δ 8.41 (1H, d, J=8.83 Hz), 7.60 (1H, s), 7.39-7.27 (5H, m), 6.81 (1H, dd, J=8.83, 2.41 Hz), 6.69 (1H, d, J=2.37 Hz), 5.98-5.85 (1H, m), 4.60-4.50 (2H, m), 4.49-4.35 (4H, m), 3.83-3.69 (2H, m), 3.65-3.55 (2H, m), 3.24 (1H, s), 2.42 (3H, s), 2.20-2.12 (1H, m), 2.07-1.97 (1H, m), 1.57 (6H, d, J=6.75 Hz), 1.31 (3H, s)

Aufarbeitung

  1. stirringstirring
  2. waitwas continued for 10 min
  3. extractionthe aqueous phase was extracted with EtOAc (×2)
  4. washThe combined organic phases were washed with water
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated in vacuo
  7. customThe resulting residue was purified by column chromatography (Si-PCC, gradient 3-12% MeOH in DCM)

Quellen und Nachweise

ORD-Eintrag
ord-f06da8b3d6b645c381adec5b1136d71d
Quelldatensatz
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09090628B2

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