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Acetic Anhydride → 7-[(acetoxy)(5-methyl-1-trityl-1H-imidazol-4-yl)methyl]-10-ethyl-8,9-dihydropyrido[1,2-a]indol-6(7H)-one

HRID 847518
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 847518
[C:1](OC(=O)C)(=[O:3])[CH3:2].[CH2:8]([C:10]1[C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[N:12]2[C:19](=[O:50])[CH:20]([CH:23]([OH:49])[C:24]3[N:25]=[CH:26][N:27]([C:30]([C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)([C:37]4[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=4)[C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)[C:28]=3[CH3:29])[CH2:21][CH2:22][C:11]=12)[CH3:9]>N1C=CC=CC=1>[C:1]([O:49][CH:23]([C:24]1[N:25]=[CH:26][N:27]([C:30]([C:43]2[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=2)([C:37]2[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=2)[C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=2)[C:28]=1[CH3:29])[CH:20]1[C:19](=[O:50])[N:12]2[C:13]3[C:18]([C:10]([CH2:8][CH3:9])=[C:11]2[CH2:22][CH2:21]1)=[CH:17][CH:16]=[CH:15][CH:14]=3)(=[O:3])[CH3:2]
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Komponenten

4

Edukt 2

HCID 7918Acetic AnhydrideHCID 1005366010-ethyl-8,9-dihydro-7-[(hydroxy)(5-methyl-1-trityl-1H-imidazol-4-yl)methyl]pyrido[1,2-a]indol-6(7H)-one

Produkt 1

HCID 101002317-[(acetoxy)(5-methyl-1-trityl-1H-imidazol-4-yl)methyl]-10-ethyl-8,9-dihydropyrido[1,2-a]indol-6(7H)-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel

Versuchsvorschrift

Acetic anhydride (2.0 ml) was added to a solution of 10-ethyl-8,9-dihydro-7-[(hydroxy)(5-methyl-1-trityl-1H-imidazol-4-yl)methyl]pyrido[1,2-a]indol-6(7H)-one (2.15 g) in pyridine (10 ml). After being stirred at room temperature for 20 hours, the solution was evaporated in vacuo. The residue was dissolved in toluene (30 ml) and the solution was evaporated in vacuo to remove pyridine and acetic anhydride. This operation was repeated further three times to give 7-[(acetoxy)(5-methyl-1-trityl-1H-imidazol-4-yl)methyl]-10-ethyl-8,9-dihydropyrido-[1,2-a]indol-6(7H)-one as an amorphous powder. This crude product was used in the next reaction without further purification.

Aufarbeitung

  1. customthe solution was evaporated in vacuo
  2. dissolutionThe residue was dissolved in toluene (30 ml)
  3. customthe solution was evaporated in vacuo
  4. customto remove pyridine and acetic anhydride

Quellen und Nachweise

ORD-Eintrag
ord-af1cb39fdd5842b89381c211df01dcb0
Quelldatensatz
uspto-grants-1992_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05141945

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