1,2-Dichloroethane → (E)-3-(6-aminopyridin-3-yl)-2-methyl-N-methyl-N-(1-methyl-1H-indol-2-ylmethyl)acrylamide

HRID 2112716Notes

Reaction equation

HRID 2112716 reaction equation
Cl.[NH2:2][C:3]1[N:8]=[CH:7][C:6](/[CH:9]=[C:10](\[CH3:14])/[C:11]([OH:13])=O)=[CH:5][CH:4]=1.[CH3:15][N:16]1[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH:18]=[C:17]1[CH2:25][NH:26][CH3:27].C1C=CC2N(O)N=NC=2C=1.O.CCN(CC)CC.C(Cl)CCl>CN(C=O)C.C(Cl)Cl>[NH2:2][C:3]1[N:8]=[CH:7][C:6](/[CH:9]=[C:10](\[CH3:14])/[C:11]([N:26]([CH3:27])[CH2:25][C:17]2[N:16]([CH3:15])[C:24]3[C:19]([CH:18]=2)=[CH:20][CH:21]=[CH:22][CH:23]=3)=[O:13])=[CH:5][CH:4]=1

Participants

8

Reactant 6

HCID 111,2-DichloroethaneHCID 962WaterHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 11401058methyl((1-methyl-1H-indol-2-yl)methyl)amineHCID 67343937(E)-3-(6-aminopyridin-3-yl)2-methylacrylic acid HCl salt

Product 1

HCID 57440853(E)-3-(6-aminopyridin-3-yl)-2-methyl-N-methyl-N-(1-methyl-1H-indol-2-ylmethyl)acrylamideYield 75%

Reagents, catalysts & solvents 1

HCID 22350042dichloromethane N,N-dimethylformamideSolvent

Procedure

To a stirred solution of (E)-3-(6-aminopyridin-3-yl)-2-methylacrylic acid HCl salt (0.5 g, 2.3 mmole) in dry 1:1 DMF/CH2Cl2 (30 mL) at RT was added 1-methyl-2-(methylaminomethyl)indole (0.42 g, 2.4 mmole), HOBt.H2O (0.32 g, 2.4 mmole), Et3N (0.66 mL, 4.7 mmole), and EDC (0.46 g, 2.4 mmole). After stirring for 24 hr the reaction was concentrated to dryness. The residue was taken up in ethyl acetate and the solution was washed with H2O, dried (Na2SO4), and concentrated under vacuum. Flash chromatography on silica gel (4% methanol/CHCl3) followed by trituration with ethyl acetate/hexane gave the title compound (0.55 g, 75%) as an off-white solid: LCMS (ES) m/e 335.2 (M+H)+; 1H NMR (300 MHz, DMSO-d6) δ 7.96 (s, 1H), 7.52 (d, J=7.8 Hz, 1H), 7.48 (dd, 1H), 7.43 (d, J=7.8 Hz, 1H), 7.14 (t, 1H), 7.03 (t, 1H), 6.46 (d, J=8.7 Hz, 1H), 6.43 (s, 1H), 6.40 (s, 1H), 6.17 (br s, 2H).

Workup

  1. concentrationwas concentrated to dryness
  2. washthe solution was washed with H2O
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-d182861b989c43289c81a7ccdf78c7ea
Source dataset
uspto-grants-2009_04
Patent number
US07524843B2

Reaction notes

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