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Hydrochloric Acid → (11R,12S,13E,15S,17S)-9-butyloxy-11,15-dihydroxy-17,20-dimethyl-7-thiaprosta-8,13-dienoic acid

HRID 3026
Notes
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Reaction equation

HRID 3026 reaction equation
C[O:2][C:3](=[O:32])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][S:9][C:10]1[C@@H:14](/[CH:15]=[CH:16]/[C@@H:17]([OH:25])[CH2:18][C@@H:19]([CH3:24])[CH2:20][CH2:21][CH2:22][CH3:23])[C@H:13]([OH:26])[CH2:12][C:11]=1[O:27][CH2:28][CH2:29][CH2:30][CH3:31].P([O-])([O-])([O-])=O.Cl.S([O-])([O-])(=O)=O.[NH4+].[NH4+]>CC(C)=O>[CH2:28]([O:27][C:11]1[CH2:12][C@@H:13]([OH:26])[C@H:14](/[CH:15]=[CH:16]/[C@@H:17]([OH:25])[CH2:18][C@@H:19]([CH3:24])[CH2:20][CH2:21][CH2:22][CH3:23])[C:10]=1[S:9][CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][C:3]([OH:32])=[O:2])[CH2:29][CH2:30][CH3:31]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 1061PhosphateHCID 6097028Ammonium SulfateHCID 22883802Methyl(11R,12S,13E,15S,17S)-9-butyloxy-11,15-dihydroxy-17,20-dimethyl-7-thiaprosta-8,13-dienoate

Product 1

HCID 22883777(11R,12S,13E,15S,17S)-9-butyloxy-11,15-dihydroxy-17,20-dimethyl-7-thiaprosta-8,13-dienoic acidYield 14%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

Methyl(11R,12S,13E,15S,17S)-9-butyloxy-11,15-dihydroxy-17,20-dimethyl-7-thiaprosta-8,13-dienoate (51 mg, 0.11 mmol) was dissolved in acetone (1 ml). To this solution was added a pH 8 phosphate buffer (10 ml). Further esterase (from porcine liver made by Sigma Co., 114 μl) was added and the mixture was stirred at room temperature for five hours. Further in a state with methyl ester remaining, the reaction solution was ice cooled, was made pH 4 by dilute hydrochloric acid, and was saturated by ammonium sulfate. The mixture was extracted by ethyl acetate, the extract was dried, then was concentrated under reduced pressure. The concentrate was purified by thin layer chromatography (developing solvent: ethyl acetate, Rf=0.2) to obtain (11R,12S,13E,15S,17S)-9-butyloxy-11,15-dihydroxy-17,20-dimethyl-7-thiaprosta-8,13-dienoic acid (7 mg, 14%).

Workup

  1. additionFurther esterase (from porcine liver made by Sigma Co., 114 μl) was added
  2. temperaturecooled
  3. extractionThe mixture was extracted by ethyl acetate
  4. customthe extract was dried
  5. concentrationwas concentrated under reduced pressure
  6. customThe concentrate was purified by thin layer chromatography (developing solvent: ethyl acetate, Rf=0.2)

Sources & evidence

ORD record
ord-e22638b8245f48a095b97a9f8f553d18
Source dataset
uspto-grants-1998_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05731452

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes