Hydrochloric Acid → 3-{[(4-{[Cyclohexyl(3,5-dimethyl-1-benzofuran-2-yl)methyl]amino}phenyl)carbonyl]amino}propanoic acid

HRID 2091128ノート

反応式

HRID 2091128 の反応式
Cl[CH:2]([CH:14]1[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]1)[C:3]1[O:4][C:5]2[CH:12]=[CH:11][C:10]([CH3:13])=[CH:9][C:6]=2[C:7]=1[CH3:8].[NH2:20][C:21]1[CH:26]=[CH:25][C:24]([C:27]([NH:29][CH2:30][CH2:31][C:32]([O:34]CC)=[O:33])=[O:28])=[CH:23][CH:22]=1.[I-].[Na+].C(=O)([O-])[O-].[Na+].[Na+].Cl>C(O)C.O1CCCC1.CN(C)C=O>[CH:14]1([CH:2]([NH:20][C:21]2[CH:22]=[CH:23][C:24]([C:27]([NH:29][CH2:30][CH2:31][C:32]([OH:34])=[O:33])=[O:28])=[CH:25][CH:26]=2)[C:3]2[O:4][C:5]3[CH:12]=[CH:11][C:10]([CH3:13])=[CH:9][C:6]=3[C:7]=2[CH3:8])[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]1

参加物

9

反応物 5

HCID 313Hydrochloric AcidHCID 5238Sodium IodideHCID 10340Sodium CarbonateHCID 12469762Ethyl 3-(4-aminobenzamido)propanoateHCID 667790612-[Chloro(cyclohexyl)methyl]-3,5-dimethyl-1-benzofuran

生成物 1

HCID 686285753-{[(4-{[Cyclohexyl(3,5-dimethyl-1-benzofuran-2-yl)methyl]amino}phenyl)carbonyl]amino}propanoic acid収率 67.3%

試薬・触媒・溶媒 3

HCID 702Ethanol溶媒HCID 6228Dimethylformamide溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
80 °C

実験手順

A mixture of 2-[chloro(cyclohexyl)methyl]-3,5-dimethyl-1-benzofuran (400 mg) synthesized above, ethyl 3-{[(4-aminophenyl)carbonyl]amino}propanoate (343 mg) synthesized in Example 1(2), sodium iodide (327 mg), sodium carbonate (231 mg) and N,N-dimethylformamide (10 mL) was stirred at 80° C. for 5 hr. 1N Hydrochloric acid was added to quench the reaction, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (45% ethyl acetate/hexane) to give a yellow oil. To a mixture of the obtained oil, tetrahydrofuran (5 mL) and ethanol (5 mL) 1N aqueous sodium hydroxide solution (2.00 mL) were added, and the mixture was stirred at room temperature for 2 hr, and concentrated under reduced pressure. The residue was dissolved in water (10 mL), and 1N hydrochloric acid (2.00 mL) was added at 0° C. The resulting precipitate was collected by filtration to give the title object compound (436 mg, 67%) as a white solid.

後処理

  1. customto quench
  2. customthe reaction
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (45% ethyl acetate/hexane)
  8. customto give a yellow oil
  9. additionwere added
  10. stirringthe mixture was stirred at room temperature for 2 hr
  11. concentrationconcentrated under reduced pressure
  12. dissolutionThe residue was dissolved in water (10 mL)
  13. addition1N hydrochloric acid (2.00 mL) was added at 0° C
  14. filtrationThe resulting precipitate was collected by filtration

出典と根拠

ORDレコード
ord-17b1775fefd2402bad2d7cb9247428be
出典データセット
uspto-grants-2013_05
特許番号
US08436043B2

反応ノート

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