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Hydrochloric Acid → (2E)-3-{1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1H-pyrazol-4-yl}-2-propenoic acid

HRID 2221944
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HRID 2221944 반응식
[CH2:1]([N:8]1[CH:12]=[C:11](/[CH:13]=[CH:14]/[C:15]([O:17]CC)=[O:16])[C:10]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][C:25]([O:28][CH2:29][C:30]3[N:31]=[C:32]([C:36]4[O:37][CH:38]=[CH:39][CH:40]=4)[O:33][C:34]=3[CH3:35])=[C:24]([O:41][CH3:42])[CH:23]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O1CCCC1.[OH-].[Na+].Cl>O.C(O)C>[CH2:1]([N:8]1[CH:12]=[C:11](/[CH:13]=[CH:14]/[C:15]([OH:17])=[O:16])[C:10]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][C:25]([O:28][CH2:29][C:30]3[N:31]=[C:32]([C:36]4[O:37][CH:38]=[CH:39][CH:40]=4)[O:33][C:34]=3[CH3:35])=[C:24]([O:41][CH3:42])[CH:23]=2)=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 86605888ethyl (2E)-3-{1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1H-pyrazol-4-yl}-2-propenoate

생성물 1

HCID 69216963(2E)-3-{1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1H-pyrazol-4-yl}-2-propenoic acid
수율 98.2%

시약·촉매·용매 2

HCID 702Ethanol용매HCID 962Water용매

실험 절차

To a mixture of ethyl (2E)-3-{1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1H-pyrazol-4-yl}-2-propenoate (1.20 g), tetrahydrofuran (5 mL) and ethanol (5 mL) was added 1N aqueous sodium hydroxide solution (5 mL), and the mixture was heated under reflux for 3 hrs. To the reaction mixture were added 1N hydrochloric acid (5 mL) and water, and the precipitated crystals were collected by filtration to give (2E)-3-{1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1H-pyrazol-4-yl}-2-propenoic acid as colorless crystals (1.12 g, yield 98%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 175-176° C.

후처리

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 3 hrs
  3. filtrationthe precipitated crystals were collected by filtration

출처 및 근거

ORD 기록
ord-7ccbe22c026745b2a4970c58b81790fe
출처 데이터셋
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07368578B2

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