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Ammonium Chloride → 1-(4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}phenyl)ethanol

HRID 909498
Notes
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Reaction equation

HRID 909498 reaction equation
[CH3:1][O:2][CH2:3][C@H:4]([CH3:32])[O:5][C:6]1[CH:7]=[C:8]([CH:19]=[C:20]([C:22]2[NH:23][C:24]([C:27]3[S:28][CH:29]=[CH:30][N:31]=3)=[CH:25][CH:26]=2)[CH:21]=1)[O:9][C:10]1[CH:15]=[CH:14][C:13]([C:16](=[O:18])[CH3:17])=[CH:12][CH:11]=1.[BH4-].[Na+].[Cl-].[NH4+]>O1CCCC1.CO>[CH3:1][O:2][CH2:3][C@H:4]([CH3:32])[O:5][C:6]1[CH:7]=[C:8]([CH:19]=[C:20]([C:22]2[NH:23][C:24]([C:27]3[S:28][CH:29]=[CH:30][N:31]=3)=[CH:25][CH:26]=2)[CH:21]=1)[O:9][C:10]1[CH:15]=[CH:14][C:13]([CH:16]([OH:18])[CH3:17])=[CH:12][CH:11]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 580654701-(4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}phenyl)ethanone

Product 1

HCID 580654671-(4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}phenyl)ethanolYield 91.1%

Reagents, catalysts & solvents 2

HCID 887
Methanol
Solvent
HCID 8028TetrahydrofuranSolvent

Procedure

1-(4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}phenyl)ethanone (30 mg, 0.067 mmol) synthesized in Example (39b) was dissolved in a mixed solvent of tetrahydrofuran (3.0 mL) and methanol (1.0 mL), and sodium borohydride (10 mg, 0.264 mmol) was added, followed by stirring at room temperature for 3 hours under nitrogen atmosphere. To this reaction solution, a saturated aqueous ammonium chloride solution (10 mL) was added, and extraction was carried out with ethyl acetate (10 mL). The organic layer was washed with saturated brine, and subsequently dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was purified using silica gel column chromatography (elution solvent: ethyl acetate/hexane=40%-60%) to afford the desired compound (27.5 mg, yield 91%) as a white solid.

Workup

  1. additionwas added
  2. extractionextraction
  3. washThe organic layer was washed with saturated brine
  4. dry with materialsubsequently dried over anhydrous magnesium sulfate
  5. distillationThe solvent was distilled off under reduced pressure
  6. customthe resulting residue was purified
  7. washsilica gel column chromatography (elution solvent: ethyl acetate/hexane=40%-60%)

Sources & evidence

ORD record
ord-6f00cb0040a54e5f8c7f2f09bbb08d89
Source dataset
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08017610B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes