9-Fluorenylmethyl chloroformate → 7-(2-Methoxy-4-methoxymethoxyphenyl)-8-[N-(2-methoxyphenyl)-N-(9-fluorenylmethoxycarbonyl)aminomethyl]-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one

HRID 1038497

Reaktionsgleichung

Reaktionsgleichung von HRID 1038497
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH2:10][O:11][CH3:12])[CH:6]=[CH:5][C:4]=1[C:13]1[C:22]([CH2:23][NH:24][C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[O:31][CH3:32])=[C:21]2[C:16]([NH:17][C:18]([CH3:36])([CH3:35])[C:19](=[O:34])[N:20]2[CH3:33])=[CH:15][CH:14]=1.C(=O)([O-])O.[Na+].[CH:42]1[C:54]2[CH:53]([CH2:55][O:56][C:57](Cl)=[O:58])[C:52]3[C:47](=[CH:48][CH:49]=[CH:50][CH:51]=3)[C:46]=2[CH:45]=[CH:44][CH:43]=1>O1CCOCC1.O.C(OCC)(=O)C>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH2:10][O:11][CH3:12])[CH:6]=[CH:5][C:4]=1[C:13]1[C:22]([CH2:23][N:24]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[O:31][CH3:32])[C:57]([O:56][CH2:55][CH:53]2[C:52]3[CH:51]=[CH:50][CH:49]=[CH:48][C:47]=3[C:46]3[C:54]2=[CH:42][CH:43]=[CH:44][CH:45]=3)=[O:58])=[C:21]2[C:16]([NH:17][C:18]([CH3:36])([CH3:35])[C:19](=[O:34])[N:20]2[CH3:33])=[CH:15][CH:14]=1

Komponenten

7

Edukt 3

HCID 343679-Fluorenylmethyl chloroformateHCID 516892Sodium BicarbonateHCID 583371847-(2-Methoxy-4-methoxymethoxyphenyl)-8-(2-methoxyphenylaminomethyl)-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one

Produkt 1

HCID 583371967-(2-Methoxy-4-methoxymethoxyphenyl)-8-[N-(2-methoxyphenyl)-N-(9-fluorenylmethoxycarbonyl)aminomethyl]-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-oneAusbeute 99 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 962WaterLösungsmittelHCID 8857Ethyl AcetateLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

7-(2-Methoxy-4-methoxymethoxyphenyl)-8-(2-methoxyphenylaminomethyl)-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one (Compound No. 6-39, 104 mg, 0.212 mmol) and sodium hydrogen carbonate (22.0 mg, 0.262 mmol) were dissolved in mixed solvent of 1,4-dioxane (1.5 mL) and water (1 mL), and 9-fluorenylmethoxycarbonyl chloride (60.3 mg, 0.233 mmol) was added thereto. After the reaction mixture was stirred at room temperature for 30 minutes, the mixture was diluted with ethyl acetate (50 mL). The mixture was washed with water (50 mL) and saturated brine (50 mL) successively, dried over anhydrous magnesium sulfate, and then the solvent was removed under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give the titled compound (149 mg) as a colorless amorphous product. (Yield 99%)

Aufarbeitung

  1. additionwas added
  2. washThe mixture was washed with water (50 mL) and saturated brine (50 mL) successively
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was removed under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-dd255b0be27743ea949480b52ac831fe
Quelldatensatz
uspto-grants-2013_10
Patentnummer
US08551991B2

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