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 1182773

反応式

HRID 1182773 の反応式
[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>[CH:42]1[C:54]2[CH:53]([CH2:55][O:56][C:57]([N:24]([CH2:23][C:22]3[C:13]([C:4]4[CH:5]=[CH:6][C:7]([O:9][CH2:10][O:11][CH3:12])=[CH:8][C:3]=4[O:2][CH3:1])=[CH:14][CH:15]=[C:16]4[C:21]=3[N:20]([CH3:33])[C:19](=[O:34])[C:18]([CH3:36])([CH3:35])[NH:17]4)[C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=3[O:31][CH3:32])=[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

参加物

7

反応物 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

生成物 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-one収率 99%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 8857Ethyl Acetate溶媒HCID 312751,4-Dioxane溶媒

実験手順

7-(2-Methoxy-4-methoxymethoxyphenyl)-8-(2-methoxyphenylaminomethyl)-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one (Reference Compound No. 8-4, 104 mg, 0.212 mmol) and sodium hydrogen carbonate (22.0 mg, 0.262 mmol) were dissolved in a 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 reference compound (149 mg) as a colorless amorphous product. (Yield 99%)

後処理

  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)

出典と根拠

ORDレコード
ord-34e432a6350a4a159a92d156fd1b8484
出典データセット
uspto-grants-2014_03
特許番号
US08664221B2

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