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(+)-3,4-dihydro-5-methyl-2-[1-(5-methyl-1-trityl-1H-imidazol-4-yl)ethyl]pyrimido[1,6-a]indol-1(2H)-one → 3,4-dihydro-5-methyl-2-[1-(5-methyl-1H-imidazol-4-yl)ethyl]pyrimido[1,6-a]-indol-1(2H)-one

HRID 1646777
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1646777
[CH3:1][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[N:4]2[C:11](=[O:42])[N:12]([CH:15]([C:17]3[N:18]=[CH:19][N:20](C(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[C:21]=3[CH3:22])[CH3:16])[CH2:13][CH2:14][C:3]=12>C(O)(=O)C.O>[CH3:1][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[N:4]2[C:11](=[O:42])[N:12]([CH:15]([C:17]3[N:18]=[CH:19][NH:20][C:21]=3[CH3:22])[CH3:16])[CH2:13][CH2:14][C:3]=12
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Komponenten

4

Edukt 1

HCID 10460239(+)-3,4-dihydro-5-methyl-2-[1-(5-methyl-1-trityl-1H-imidazol-4-yl)ethyl]pyrimido[1,6-a]indol-1(2H)-one

Produkt 1

HCID 98830773,4-dihydro-5-methyl-2-[1-(5-methyl-1H-imidazol-4-yl)ethyl]pyrimido[1,6-a]-indol-1(2H)-one

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 176Acetic AcidLösungsmittelHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

A mixture of 3,4-dihydro-5-methyl-2-[1-(5-methyl-1-trityl-1H-imidazol-4-yl)ethyl]pyrimido[1,6-a]indol-1(2H)-one (60 mg) in 70% acetic acid in water (2.6 ml) was stirred at 60° C. for 2 hours. After evaporation of the solvent, the residue was dissolved in 10% methanol in chloroform. The mixture was washed with aqueous sodium bicarbonate solution and brine, dried over anhydrous magnesium sulfate, and evaporated in vacuo. The residue was purified by silica gel column chromatography (10% methanol-chloroforms) to give 3,4-dihydro-5-methyl-2-[1-(5-methyl-1H-imidazol-4-yl)ethyl]pyrimido[1,6-a]-indol-1(2H)-one as a powder. The powder was dissolved in 9N hydrogen chloride in ethanol (1 ml) and evaporated in vacuo. The residue was triturated with ether to give 3,4-dihydro-5-methyl-2-[1-(5-methyl-1H-imidazol-4-yl)-ethyl]pyrimido[1,6-a]indol-1(2H)-one hydrochloride (36.8 mg).

Aufarbeitung

  1. customAfter evaporation of the solvent
  2. dissolutionthe residue was dissolved in 10% methanol in chloroform
  3. washThe mixture was washed with aqueous sodium bicarbonate solution and brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customevaporated in vacuo
  6. customThe residue was purified by silica gel column chromatography (10% methanol-chloroforms)

Quellen und Nachweise

ORD-Eintrag
ord-2b84062a7af44568afa620a4c0f22771
Quelldatensatz
uspto-grants-1993_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05180728

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