Hydrochloric Acid → 3-[3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-2-pyridylmethyl]-1H-pyrazol-4-yl]propionic acid

HRID 350222ノート

反応式

HRID 350222 の反応式
[CH2:1]([O:3][C:4]1[C:8]([CH2:9][CH2:10][C:11]([O:13]CC)=[O:12])=[CH:7][N:6]([CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([O:23][CH2:24][C:25]3[N:26]=[C:27]([C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)[O:28][C:29]=3[CH3:30])[N:18]=2)[N:5]=1)[CH3:2].[OH-].[Na+].O1CCCC1.Cl>C(O)C>[CH2:1]([O:3][C:4]1[C:8]([CH2:9][CH2:10][C:11]([OH:13])=[O:12])=[CH:7][N:6]([CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([O:23][CH2:24][C:25]3[N:26]=[C:27]([C:31]4[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=4)[O:28][C:29]=3[CH3:30])[N:18]=2)[N:5]=1)[CH3:2]

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 69424084ethyl 3-[3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-2-pyridylmethyl]-1H-pyrazol-4-yl]propionate

生成物 1

HCID 694201883-[3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-2-pyridylmethyl]-1H-pyrazol-4-yl]propionic acid収率 85%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

After a mixture of ethyl 3-[3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-2-pyridylmethyl]-1H-pyrazol-4-yl]propionate (652 mg), 1N aqueous sodium hydroxide solution (3 ml), tetrahydrofuran (6 ml) and ethanol (6 ml) was stirred at room temperature for 3 hours, 1N hydrochloric acid (3 ml) was added to the mixture, and then the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride solution, dried (MgSO4) and concentrated. The resulting colorless crystals were collected by filtration to obtain 3-[3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-2-pyridylmethyl]-1H-pyrazol-4-yl]propionic acid (522 mg, yield: 85%). This was recrystallized from ethanol-hexane. Melting point: 144–145° C.

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated aqueous sodium chloride solution
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. filtrationThe resulting colorless crystals were collected by filtration

出典と根拠

ORDレコード
ord-c9bb259c33004cd896c52fc3880ca6c3
出典データセット
uspto-grants-2007_02
特許番号
US07179823B1

反応ノート

読み込み中…