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Water → 3-((4-(4-Fluorophenoxy)benzenesulfonyl)-(1-hydroxycarbamoylcyclopentyl)amino)propionic acid

HRID 1953829
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HRID 1953829 반응식
C([O:3][C:4](=[O:34])[CH2:5][CH2:6][N:7]([S:17]([C:20]1[CH:25]=[CH:24][C:23]([O:26][C:27]2[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=2)=[CH:22][CH:21]=1)(=[O:19])=[O:18])[C:8]1([C:13](=[O:16])[NH:14][OH:15])[CH2:12][CH2:11][CH2:10][CH2:9]1)C.C1(C)C=CC=CC=1.O.[OH-].[Na+]>ClCCl>[F:33][C:30]1[CH:29]=[CH:28][C:27]([O:26][C:23]2[CH:24]=[CH:25][C:20]([S:17]([N:7]([C:8]3([C:13](=[O:16])[NH:14][OH:15])[CH2:12][CH2:11][CH2:10][CH2:9]3)[CH2:6][CH2:5][C:4]([OH:34])=[O:3])(=[O:19])=[O:18])=[CH:21][CH:22]=2)=[CH:32][CH:31]=1
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참가 물질

6

반응물 4

HCID 962WaterHCID 1140TolueneHCID 14798Sodium HydroxideHCID 98057753-[[4-(4-Fluorophenoxy)benzenesulfonyl]-(1-hydroxycarbamoylcyclopentyl)amino]propionic acid ethyl ester

생성물 1

HCID 98691423-((4-(4-Fluorophenoxy)benzenesulfonyl)-(1-hydroxycarbamoylcyclopentyl)amino)propionic acid수율 71.1%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

A solution of 7.48 g (15.1 mmol) of 3-[[4-(4-fluorophenoxy)benzenesulfonyl]-(1-hydroxycarbamoylcyclopentyl)amino]propionic acid ethyl ester in dichloromethane was concentrated by rotary evaporation with the addition of 75 mL of toluene. This solution was treated with 75 mL of water, cooled to 0° C., and treated with 6.05 g (151 mmol, 10 equivalents) of sodium hydroxide pellets over 10 minutes with vigorous stirring. This mixture was stirred for 15 minutes at 0° C. and warmed to ambient temperature over one hour. The aqueous phase was separated, diluted with 7.5 mL of tetrahydrofuran, cooled to 0° C., and treated with 33 mL of 6N aqueous hydrochloric acid over 20 minutes. This mixture was stirred with 75 mL of ethyl acetate at 0° C. to ambient temperature, and the ethyl acetate phase was separated and washed with water. The ethyl acetate solution was slowly treated with 150 mL of hexanes at ambient temperature causing solids to precipitate, and stirred overnight. Filtration yielded 5.01 g of 3-[[4-(4-fluorophenoxy)benzenesulfonyl]-(1-hydroxycarbamoylcyclopentyl)amino]propionic acid as a white solid (71% yield from 1-{(2-ethoxycarbonylethyl)-[4-(4-fluorophenoxy)benzenesulfonyl]amino}cyclopentanecarboxylic acid).

후처리

  1. temperaturewarmed to ambient temperature over one hour
  2. customThe aqueous phase was separated
  3. additiondiluted with 7.5 mL of tetrahydrofuran
  4. temperaturecooled to 0° C.
  5. additiontreated with 33 mL of 6N aqueous hydrochloric acid over 20 minutes
  6. stirringThis mixture was stirred with 75 mL of ethyl acetate at 0° C. to ambient temperature
  7. customthe ethyl acetate phase was separated
  8. washwashed with water
  9. additionThe ethyl acetate solution was slowly treated with 150 mL of hexanes at ambient temperature
  10. customto precipitate
  11. stirringstirred overnight
  12. filtrationFiltration

출처 및 근거

ORD 기록
ord-df0cd55a8ef440e1b0d048baa785739d
출처 데이터셋
uspto-grants-2000_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06118016

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