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Acetoxyacetyl chloride → (N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}carbamoyl)methyl acetate

HRID 2103480
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2103480
N12CCCN=C1CCCCC2.Cl.[NH2:13][CH2:14][C:15]1[CH:23]=[CH:22][CH:21]=[C:20]2[C:16]=1[C:17](=[O:33])[N:18]([CH:25]1[CH2:30][CH2:29][C:28](=[O:31])[NH:27][C:26]1=[O:32])[C:19]2=[O:24].[C:34]([O:37][CH2:38][C:39](Cl)=[O:40])(=[O:36])[CH3:35]>CC#N>[C:34]([O:37][CH2:38][C:39](=[O:40])[NH:13][CH2:14][C:15]1[CH:23]=[CH:22][CH:21]=[C:20]2[C:16]=1[C:17](=[O:33])[N:18]([CH:25]1[CH2:30][CH2:29][C:28](=[O:31])[NH:27][C:26]1=[O:32])[C:19]2=[O:24])(=[O:36])[CH3:35]
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Komponenten

5

Edukt 3

HCID 26297Acetoxyacetyl chlorideHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Produkt 1

HCID 10134793(N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}carbamoyl)methyl acetateAusbeute 75,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342
Acetonitrile
Lösungsmittel

Versuchsvorschrift

1,8-Diazabicyclo[5,4,0]undec-7-ene (0.62 g, 4.08 mmol) was added to a stirred suspension of 4-(aminomethyl)-2-(2,6-dioxo(3-piperidyl))isoindoline-1,3-dione hydrochloride (0.600 g, 1.85 mmol) in CH3CN (50 ml). After stirring for 20 min, acetoxyacetyl chloride (0.28 g, 2.03 mmol) was added. The mixture was stirred at room temperature for 17 hours. The solvent was removed in vacuo and the residue was dissolved in CH2Cl2 (70 ml). The CH2Cl2 solution was washed with 1N HCl (30 ml), H2O (30 ml), brine (30 ml) and dried (MgSO4). The solvent was removed in vacuo and the residue was purified by chromatography (SiO2, CH2Cl2:CH3OH 100:2.5) to give (N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}carbamoyl)methyl acetate (0.54 g, 75%) as a white solid: mp 108-110° C.; 1H NMR (DMSO-d6) δ d 11.14 (s, 1H), 8.68 (t, J=6.0 Hz, 1H), 7.87-7.79 (m, 2H), 7.71-7.65 (m, 1H), 5.19-5.12 (dd, J=5.3 and 12.4 Hz, 1H), 4.77 (d, J=5.9 Hz, 2H), 4.56 (s, 2H), 2.96-2.83 (m, 1H), 2.63-2.47 (m, 2H), 2.11 (s, 3H), 2.08-1.98 (m, 1H); 13C NMR (DMSO-d6) δ d 172.66, 169.96, 169.72, 167.46, 167.37, 166.36, 138.80, 134.68, 133.01, 132.47, 127.04, 121.87, 62.36, 48.84, 37.46, 30.38, 21.93, 20.49; Anal. Calcd. For C18H17N3O7+0.15H2O: C, 55.43; H, 4.47; N, 10.77. Found: C, 55.43; H, 4.54; N, 10.44.

Aufarbeitung

  1. stirringThe mixture was stirred at room temperature for 17 hours
  2. customThe solvent was removed in vacuo
  3. dissolutionthe residue was dissolved in CH2Cl2 (70 ml)
  4. washThe CH2Cl2 solution was washed with 1N HCl (30 ml), H2O (30 ml), brine (30 ml)
  5. dry with materialdried (MgSO4)
  6. customThe solvent was removed in vacuo
  7. customthe residue was purified by chromatography (SiO2, CH2Cl2:CH3OH 100:2.5)

Quellen und Nachweise

ORD-Eintrag
ord-39404acdb9f34adbbdc0d1e558625c12
Quelldatensatz
uspto-grants-2009_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07576104B2

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