Propionic Acid → N-[5-(1-Methyl-2-oxo-1,2,3,4-tetrahydro-quinolin-6-yl)-pyridin-3-ylmethyl]-propionamide

HRID 1774802Notes

Reaction equation

HRID 1774802 reaction equation
[NH2:1][CH2:2][C:3]1[CH:4]=[C:5]([C:9]2[CH:10]=[C:11]3[C:16](=[CH:17][CH:18]=2)[N:15]([CH3:19])[C:14](=[O:20])[CH2:13][CH2:12]3)[CH:6]=[N:7][CH:8]=1.CCN=C=NCCCN(C)C.CCN(C(C)C)C(C)C.[C:41](O)(=[O:44])[CH2:42][CH3:43].[NH4+].[Cl-]>CN(C=O)C.CCOC(C)=O>[CH3:19][N:15]1[C:16]2[C:11](=[CH:10][C:9]([C:5]3[CH:4]=[C:3]([CH2:2][NH:1][C:41](=[O:44])[CH2:42][CH3:43])[CH:8]=[N:7][CH:6]=3)=[CH:18][CH:17]=2)[CH2:12][CH2:13][C:14]1=[O:20]

Participants

8

Reactant 5

HCID 1032Propionic AcidHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 25517Ammonium ChlorideHCID 81531DiisopropylethylamineHCID 715334526-(5-Aminomethyl-pyridin-3-yl)-1-methyl-3,4-dihydro-1H-quinolin-2-one

Product 1

HCID 71533453N-[5-(1-Methyl-2-oxo-1,2,3,4-tetrahydro-quinolin-6-yl)-pyridin-3-ylmethyl]-propionamideYield 48%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 6-(5-aminomethyl-pyridin-3-yl)-1-methyl-3,4-dihydro-1H-quinolin-2-one (example 36, 0.05 g, 0.187 mmol) in dry DMF (1 mL) were added EDCI (0.039 g, 0.206 mmol), Hünig's base (0.060 g, 0.468 mmol) and propionic acid (0.021 g, 0.282 mmol) and the reaction mixture was stirred at room temperature over night. The reaction mixture was diluted with EtOAc, poured into sat. NH4Cl solution (5 mL) and extracted with EtOAc (2×10 mL). Combined organics were dried over Na2SO4, filtered and evaporated to dryness. The residue was purified by silica gel flash chromatography eluting with a 0 to 10% MeOH(1% NH4OH)-DCM gradient to give the title compound (0.029 g, 48%) as a white solid. MS: 324.4 (M+H+).

Workup

  1. extractionextracted with EtOAc (2×10 mL)
  2. dry with materialCombined organics were dried over Na2SO4
  3. filtrationfiltered
  4. customevaporated to dryness
  5. customThe residue was purified by silica gel flash chromatography
  6. washeluting with a 0 to 10% MeOH(1% NH4OH)-DCM gradient

Sources & evidence

ORD record
ord-3ba9091975df41b0a4a8205c2da69c72
Source dataset
uspto-grants-2016_02
Patent number
US09260408B2

Reaction notes

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