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Ethanol → 2-(5-{1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)-5-ethoxypyridine

HRID 1882030
Notes
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Reaction equation

HRID 1882030 reaction equation
[CH:1]1([S:4]([C:7]2[CH:12]=[CH:11][C:10]([CH:13]([C:21]3[NH:25][C:24]([C:26]4[N:31]=[CH:30][C:29]([OH:32])=[CH:28][CH:27]=4)=[CH:23][CH:22]=3)[CH2:14][CH:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)=[CH:9][CH:8]=2)(=[O:6])=[O:5])[CH2:3][CH2:2]1.[CH2:33](O)[CH3:34].C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>O1CCCC1>[CH:1]1([S:4]([C:7]2[CH:12]=[CH:11][C:10]([CH:13]([C:21]3[NH:25][C:24]([C:26]4[CH:27]=[CH:28][C:29]([O:32][CH2:33][CH3:34])=[CH:30][N:31]=4)=[CH:23][CH:22]=3)[CH2:14][CH:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)=[CH:9][CH:8]=2)(=[O:6])=[O:5])[CH2:3][CH2:2]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 702EthanolHCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 593314946-(5-{1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)pyridin-3-ol

Product 1

HCID 593313342-(5-{1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)-5-ethoxypyridine
Yield 80%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 6-(5-{1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)pyridin-3-ol (0.260 g) in tetrahydrofuran (10 mL) were added ethanol (0.067 tributylphosphine (0.29 mL) and 1,1′-(azodicarbonyl)dipiperidine (290 mg), and the mixture was stirred at room temperature for 16 hr. The reaction mixture was concentrated under reduced pressure, the residue was dissolved in toluene (10 mL), and hexane (10 mL) was added. The obtained suspension was filtered to remove the precipitate, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=20:80-70:30, volume ratio) to give the title compound (0.220 g, yield 80%) as a colorless amorphous solid. MS: 481 (MH+).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. dissolutionthe residue was dissolved in toluene (10 mL)
  3. additionhexane (10 mL) was added
  4. filtrationThe obtained suspension was filtered
  5. customto remove the precipitate
  6. concentrationthe filtrate was concentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=20:80-70:30, volume ratio)

Sources & evidence

ORD record
ord-3e8f944fef9f40ceb105cc1303de606a
Source dataset
uspto-grants-2012_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08318746B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes