L-Glutamine → 2-(4-Nitro-1,3-dioxoisoindolin-2-yl)-4-carbamoylbutanoic acid

HRID 844229

Reaktionsgleichung

Reaktionsgleichung von HRID 844229
[N+:1]([C:4]1[CH:14]=[CH:13][CH:12]=[C:6]2[C:7]([O:9][C:10](=[O:11])[C:5]=12)=O)([O-:3])=[O:2].[NH2:15][C@H:16]([C:22]([OH:24])=[O:23])[CH2:17][CH2:18][C:19](=[O:21])[NH2:20]>CN(C=O)C>[N+:1]([C:4]1[CH:14]=[CH:13][CH:12]=[C:6]2[C:5]=1[C:10](=[O:11])[N:15]([CH:16]([CH2:17][CH2:18][C:19](=[O:21])[NH2:20])[C:22]([OH:24])=[O:23])[C:7]2=[O:9])([O-:3])=[O:2]

Komponenten

4

Edukt 2

HCID 5961L-GlutamineHCID 216313-Nitrophthalic anhydride

Produkt 1

HCID 155498382-(4-Nitro-1,3-dioxoisoindolin-2-yl)-4-carbamoylbutanoic acidAusbeute 73 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
87.5 °C

Versuchsvorschrift

A mixture of 3-nitrophthalic anhydride (1.5 g, 7.8 mmol) and L-glutamine (1.14 g, 7.8 mmol) in DMF (15 mL) is heated at 85-90° C. for 4 hours. The mixture is concentrated in vacuo and the residue is slurried with water (30 mL). The resulting slurry is filtered and the solid is washed with water (10 mL), dried (60° C., <1 mm Hg) to give 2-(4-nitro-1,3-dioxoisoindolin-2-yl)-4-carbamoylbutanoic acid (1.82 g, 73%); mp 182-184° C.; 1H NMR (DMSO-d6) δ8.33 (d, J=7.7 Hz, 1H), 8.22 (d, J=7.0 Hz, 1H), 8.11 (t, J=7.8 Hz, 1H), 7.19 (s, 1H), 6.73 (s, 1H), 4.82-4.77 (dd, J=4.6 and 9.8 Hz, 1H), 2.36-2.11 (m, 4H); 13C NMR (DMSO-d6) δ173.21, 170.03, 165.43, 162.75, 144.45, 136.70, 132.98, 128.83, 127.25, 122.52, 51.87, 31.31, 23.87; Anal. Calcd. For C13H11N3O7: C, 48.60; H, 3.45; N, 13.08. Found: C, 48.52; H, 3.28; N, 13.05.

Aufarbeitung

  1. concentrationThe mixture is concentrated in vacuo
  2. filtrationThe resulting slurry is filtered
  3. washthe solid is washed with water (10 mL)
  4. customdried (60° C., <1 mm Hg)

Quellen und Nachweise

ORD-Eintrag
ord-a08c992d0ecd423c89c997531ae1e485
Quelldatensatz
uspto-grants-2002_04
Patentnummer
US06380239B1

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