Triethylamine → (E)-2-{4-[2-(2-tert-Butoxycarbonylamino-phenylcarbamoyl)-vinyl]-phenyl}-3-(1-methyl-piperidin-4-yl)-propionic acid methyl ester

HRID 220182Notes

Reaction equation

HRID 220182 reaction equation
[CH3:1][O:2][C:3](=[O:20])[CH:4]([C:13]1[CH:18]=[CH:17][C:16](Br)=[CH:15][CH:14]=1)[CH2:5][CH:6]1[CH2:11][CH2:10][N:9]([CH3:12])[CH2:8][CH2:7]1.[C:21]([O:25][C:26](=[O:39])[NH:27][C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][C:29]=1[NH:34][C:35](=[O:38])[CH:36]=[CH2:37])([CH3:24])([CH3:23])[CH3:22].C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.C(N(CC)CC)C.[NH4+].[Cl-]>CN(C=O)C.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH3:1][O:2][C:3](=[O:20])[CH:4]([C:13]1[CH:18]=[CH:17][C:16](/[CH:37]=[CH:36]/[C:35](=[O:38])[NH:34][C:29]2[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=2[NH:27][C:26]([O:25][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:39])=[CH:15][CH:14]=1)[CH2:5][CH:6]1[CH2:11][CH2:10][N:9]([CH3:12])[CH2:8][CH2:7]1

Participants

8

Reactant 5

HCID 8471TriethylamineHCID 25517Ammonium ChlorideHCID 80271Tri-o-tolylphosphineHCID 20786195HCID 20786195, compoundHCID 592382632-(4-Bromo-phenyl)-3-(1-methyl-piperidin-4-yl)-propionic acid methyl ester

Product 1

HCID 59238287(E)-2-{4-[2-(2-tert-Butoxycarbonylamino-phenylcarbamoyl)-vinyl]-phenyl}-3-(1-methyl-piperidin-4-yl)-propionic acid methyl esterYield 50%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 6228DimethylformamideSolvent

Procedure

A mixture of 2-(4-bromo-phenyl)-3-(1-methyl-piperidin-4-yl)-propionic acid methyl ester (2.27 g, 6.67 mmol), (2-acryloylamino-phenyl)-carbamic acid tert-butyl ester (2 g, 7.2 mmol), Pd2(dba)3 (160 mg, 0.175 mmol), tri-o-tolylphosphine (160 mg, 0.526 mmol) and triethylamine (1.6 g, 15.8 mmol) in DMF (12 mL) was stirred at 100 degrees Celsius under N2 for 4 hours. After cooling to room temperature, the mixture was poured into a saturated aqueous solution of NH4Cl, and extracted with ethyl acetate (80 mL). The organic layer was washed with brine, dried over Na2SO4, filtered, concentrated in vacuo, and purified by flash column chromatography to obtain a pale yellow solid (1.74 g, 50%). MS: calc'd 522 (MH+), exp 522 (MH+).

Workup

  1. extractionextracted with ethyl acetate (80 mL)
  2. washThe organic layer was washed with brine
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. custompurified by flash column chromatography

Sources & evidence

ORD record
ord-01faed2728e946bd9ab4e6be7a148f19
Source dataset
uspto-grants-2012_06
Patent number
US08202866B2

Reaction notes

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