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Ethyl Acrylate → Ethyl 3-[6-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-5-methyl-3,4-dihydro-2(1H)-isoquinolinyl]propanoate

HRID 2059943
Notes
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Reaction equation

HRID 2059943 reaction equation
FC(F)(F)C(O)=O.[CH3:8][CH:9]([O:11][C:12]1[CH:19]=[CH:18][C:17]([C:20]2[O:24][N:23]=[C:22]([C:25]3[C:26]([CH3:35])=[C:27]4[C:32](=[CH:33][CH:34]=3)[CH2:31][NH:30][CH2:29][CH2:28]4)[N:21]=2)=[CH:16][C:13]=1[C:14]#[N:15])[CH3:10].[C:36]([O:40][CH2:41][CH3:42])(=[O:39])[CH:37]=[CH2:38].N12CCCN=C1CCCCC2>C(#N)C>[C:14]([C:13]1[CH:16]=[C:17]([C:20]2[O:24][N:23]=[C:22]([C:25]3[C:26]([CH3:35])=[C:27]4[C:32](=[CH:33][CH:34]=3)[CH2:31][N:30]([CH2:38][CH2:37][C:36]([O:40][CH2:41][CH3:42])=[O:39])[CH2:29][CH2:28]4)[N:21]=2)[CH:18]=[CH:19][C:12]=1[O:11][CH:9]([CH3:8])[CH3:10])#[N:15]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 8821Ethyl AcrylateHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 575058522-[(1-Methylethyl)oxy]-5-[3-(5-methyl-1,2,3,4-tetrahydro-6-isoquinolinyl)-1,2,4-oxadiazol-5-yl]benzonitrile trifluoroacetate

Product 1

HCID 57505851Ethyl 3-[6-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-5-methyl-3,4-dihydro-2(1H)-isoquinolinyl]propanoateYield 90.6%

Reagents, catalysts & solvents

1
HCID 6342AcetonitrileSolvent

Procedure

A mixture of 2-[(1-methylethyl)oxy]-5-[3-(5-methyl-1,2,3,4-tetrahydro-6-isoquinolinyl)-1,2,4-oxadiazol-5-yl]benzonitrile trifluoroacetic acid salt (Example 11; 100 mg, 0.20 mmol), ethyl acrylate (31 mg, 33 μl, 0.31 mmol) and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU; 187 mg, 185 μl, 1.23 mmol) in acetonitrile (3 ml) was stirred at room temperature for 3 hours. The solvent was evaporated and the residue dissolved in ethyl acetate (10 ml); the solution was washed with water (5 ml), dried and evaporated. Purification of the residue by chromatography on silica gel, eluting with 10% ethyl acetate in cyclohexane gave the title compound as a colourless oil (86 mg).

Workup

  1. customThe solvent was evaporated
  2. dissolutionthe residue dissolved in ethyl acetate (10 ml)
  3. washthe solution was washed with water (5 ml)
  4. customdried
  5. customevaporated
  6. customPurification of the residue by chromatography on silica gel
  7. washeluting with 10% ethyl acetate in cyclohexane

Sources & evidence

ORD record
ord-59232db235b44a3c9fc00d66010d15b9
Source dataset
uspto-grants-2012_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08278324B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes