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Water → 6-butyl-3-[3-(2-hydroxyethoxy)phenyl]-2-methyl-5-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}pyrimidin-4(3H)-one

HRID 1673954
Notes
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Reaction equation

HRID 1673954 reaction equation
[CH2:1]([C:5]1[N:10]=[C:9]([CH3:11])[N:8]([C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH2:19][CH2:20][O:21][Si](C(C)(C)C)(C)C)[CH:13]=2)[C:7](=[O:29])[C:6]=1[CH2:30][C:31]1[CH:36]=[CH:35][C:34]([C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][C:38]=2[C:43]2[NH:47][C:46](=[O:48])[O:45][N:44]=2)=[CH:33][CH:32]=1)[CH2:2][CH2:3][CH3:4].[F-].C([N+](CCCC)(CCCC)CCCC)CCC.C(OCC)(=O)C.O>O1CCCC1>[CH2:1]([C:5]1[N:10]=[C:9]([CH3:11])[N:8]([C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH2:19][CH2:20][OH:21])[CH:13]=2)[C:7](=[O:29])[C:6]=1[CH2:30][C:31]1[CH:36]=[CH:35][C:34]([C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][C:38]=2[C:43]2[NH:47][C:46](=[O:48])[O:45][N:44]=2)=[CH:33][CH:32]=1)[CH2:2][CH2:3][CH3:4]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 2724141Tetrabutylammonium FluorideHCID 1361467336-butyl-3-[3-(2-{[tert-butyl(dimethyl)silyl]oxy}ethoxy)phenyl]-2-methyl-5-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}pyrimidin-4(3H)-one

Product 1

HCID 136146844
6-butyl-3-[3-(2-hydroxyethoxy)phenyl]-2-methyl-5-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}pyrimidin-4(3H)-one
Yield 70%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of 6-butyl-3-[3-(2-{[tert-butyl(dimethyl)silyl]oxy}ethoxy)phenyl]-2-methyl-5-{[2′-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}pyrimidin-4(3H)-one (0.95 g) in tetrahydrofuran (7 mL) was added tetrabutylammonium fluoride (0.56 g), and the mixture was stirred at 50° C. for 12 hr. The reaction mixture was allowed to cool to room temperature, ethyl acetate and water were added, and the aqueous layer was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated. The residue was purified by silica gel column chromatography to give the title compound as a colorless solid (0.55 g, 70%).

Workup

  1. temperatureto cool to room temperature
  2. extractionthe aqueous layer was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated
  6. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-84f255c46318491ab63864e8a3745b49
Source dataset
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07998968B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes