Hydrochloric Acid → 6-[3-(Dimethylamino)propyl]-9-hydroxy-4-phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

HRID 11088Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 11088
Br[CH2:2][CH2:3][CH2:4][N:5]1[C:17]2[CH:16]=[C:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[C:14]3[C:24](=[O:28])[NH:25][C:26](=[O:27])[C:13]=3[C:12]=2[C:11]2[CH:10]=[C:9]([OH:29])[CH:8]=[CH:7][C:6]1=2.[CH3:30][NH:31][CH3:32].Cl.C(=O)([O-])[O-].[K+].[K+]>CC(N(C)C)=O.O>[CH3:30][N:31]([CH3:32])[CH2:2][CH2:3][CH2:4][N:5]1[C:17]2[CH:16]=[C:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[C:14]3[C:24](=[O:28])[NH:25][C:26](=[O:27])[C:13]=3[C:12]=2[C:11]2[CH:10]=[C:9]([OH:29])[CH:8]=[CH:7][C:6]1=2

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 674DimethylamineHCID 11430Potassium CarbonateHCID 867602016-(3-Bromopropyl)-9-hydroxy-4-phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

Produkt 1

HCID 248853166-[3-(Dimethylamino)propyl]-9-hydroxy-4-phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-dioneAusbeute 47 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 31374DimethylacetamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a solution of bromide (204) prepared as described in example 173 (0.12 g, 0.27 mmol) in dimethylacetamide (4 mL) was added the amine, dimethylamine (25 mol eq., 0.85 mL in this case as an 40% aqueous solution). The reaction vessel was sealed and heated at 80° C. with stirring for 18 h, before being diluted with water. The resulting solution was then acidified by the dropwise addition of concentrated hydrochloric acid and the pH was then adjusted to approximately pH=9 by the addition of solid potassium carbonate. The precipitated product was either collected by filtration and washed with water and diisopropyl ether before being dried or extracted with ethyl acetate. The organic layer was dried, the drying agent was removed and the solution was concentrated to dryness. Chromatography on silica eluting with methanol/dichloromethane (1:9 to 1:4), followed by trituration in ethyl acetate/hexane gave amine (208) (52 mg, 47%) as a yellow powder, mp 185–189° C. 1H NMR δ [(CD3)2SO] 11.05 (s, 1H), 9.34 (s, 1H), 8.41 (d, J=2.4 Hz, 1H), 7.78 (s, 1H), 7.64 (m, 2H), 7.56 (d, J=8.9 Hz, 1H), 7.47 (m, 3H), 7.14 (dd, J=8.9, 2.4 Hz, 1H), 4.48 (t, J=6.6 Hz, 2H), 2.16 (t, J=6.5 Hz, 2H), 2.08 (s, 6H), 1.90 (m, 2H). Found: C, 71.98; H, 5.67; N, 10.14. C25H23N3O3.1/4H2O requires: C, 71.84; H, 5.67; N, 10.05.

Aufarbeitung

  1. customThe reaction vessel was sealed
  2. filtrationThe precipitated product was either collected by filtration
  3. washwashed with water and diisopropyl ether
  4. custombefore being dried
  5. extractionextracted with ethyl acetate
  6. customThe organic layer was dried
  7. customthe drying agent was removed
  8. concentrationthe solution was concentrated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-0f71807f4508467783c850c345328123
Quelldatensatz
uspto-grants-2006_08
Patentnummer
US07094798B1

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