Hydrochloric Acid → 4'-{[4-(2,3-Dimethyl-1,4-dioxaspiro[4.5]dec-8-yl)-2-methyl-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}-4-fluorobiphenyl-2-carbonitrile

HRID 519629ノート

反応式

HRID 519629 の反応式
O1C2(C[CH2:9][CH:8]([N:11]3[C:16](=[O:17])[C:15]([CH2:18][C:19]4[CH:24]=[CH:23][C:22]([C:25]5[C:26]([C:32]#[N:33])=[CH:27][C:28]([F:31])=[CH:29][CH:30]=5)=[CH:21][CH:20]=4)=[C:14]([CH2:34][CH2:35][CH3:36])[N:13]4[N:37]=[C:38]([CH3:40])[N:39]=[C:12]34)[CH2:7][CH2:6]2)OCC1.Cl.O1CC[CH2:44][CH2:43]1.[C:47]([O:50][CH2:51][CH3:52])(=[O:49])[CH3:48]>>[CH3:52][CH:51]1[CH:43]([CH3:44])[O:49][C:47]2([CH2:6][CH2:7][CH:8]([N:11]3[C:16](=[O:17])[C:15]([CH2:18][C:19]4[CH:20]=[CH:21][C:22]([C:25]5[C:26]([C:32]#[N:33])=[CH:27][C:28]([F:31])=[CH:29][CH:30]=5)=[CH:23][CH:24]=4)=[C:14]([CH2:34][CH2:35][CH3:36])[N:13]4[N:37]=[C:38]([CH3:40])[N:39]=[C:12]34)[CH2:9][CH2:48]2)[O:50]1

参加物

5

反応物 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 8857Ethyl AcetateHCID 670100244'-{[4-(1,4-Dioxaspiro[4.5]dec-8-yl)-2-methyl-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}-4-fluorobiphenyl-2-carbonitrile

生成物 1

HCID 670096714'-{[4-(2,3-Dimethyl-1,4-dioxaspiro[4.5]dec-8-yl)-2-methyl-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}-4-fluorobiphenyl-2-carbonitrile収率 100%

反応条件

温度
70 °C

実験手順

A mixture of 4′-{[4-(1,4-dioxaspiro[4.5]dec-8-yl)-2-methyl-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}-4-fluorobiphenyl-2-carbonitrile (1.1 g), 3N hydrochloric acid (30 mL) and tetrahydrofuran (30 mL) was stirred at 70° C. for 16 hr. The reaction mixture was diluted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The obtained residue was dissolved in toluene (30 mL), 2,3-dimethylpropane-1,3-diol (0.2 g) and p-toluenesulfonic acid monohydrate (0.004 g) were added, and the mixture was subjected to an azeotropic dehydration reaction by stirring at 110° C. for 3 hr in a reaction vessel equipped with a Dean-stark trap. The reaction mixture was concentrated under reduced pressure, and the obtained residue was purified by silica gel column chromatography to give the title compound as a colorless solid (1.3 g, 100%).

後処理

  1. washwashed with saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. customThe solvent was evaporated under reduced pressure
  4. dissolutionThe obtained residue was dissolved in toluene (30 mL)
  5. addition2,3-dimethylpropane-1,3-diol (0.2 g) and p-toluenesulfonic acid monohydrate (0.004 g) were added
  6. customthe mixture was subjected to an azeotropic dehydration reaction
  7. stirringby stirring at 110° C. for 3 hr in a reaction vessel
  8. customequipped with a Dean-stark trap
  9. concentrationThe reaction mixture was concentrated under reduced pressure
  10. customthe obtained residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-05d11ff713bb4936b48824ea36e81de9
出典データセット
uspto-grants-2015_08
特許番号
US09115136B2

反応ノート

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