1,2-Dichloroethane → (E)-3-(6-aminopyridin-3-yl)-N-(1,4-dimethyl-1H-indole-3-ylmethyl)-N-methylacrylamide

HRID 1690402Notes

Reaction equation

HRID 1690402 reaction equation
[CH3:1][N:2]1[C:10]2[C:5](=[C:6]([CH3:11])[CH:7]=[CH:8][CH:9]=2)[C:4]([CH2:12][NH:13][CH3:14])=[CH:3]1.[NH2:15][C:16]1[N:21]=[CH:20][C:19](/[CH:22]=[CH:23]/[C:24]([OH:26])=O)=[CH:18][CH:17]=1.C1C=CC2N(O)N=NC=2C=1.O.C(Cl)CCl>CN(C=O)C.CCN(CC)CC>[NH2:15][C:16]1[N:21]=[CH:20][C:19](/[CH:22]=[CH:23]/[C:24]([N:13]([CH2:12][C:4]2[C:5]3[C:10](=[CH:9][CH:8]=[CH:7][C:6]=3[CH3:11])[N:2]([CH3:1])[CH:3]=2)[CH3:14])=[O:26])=[CH:18][CH:17]=1

Participants

8

Reactant 5

HCID 111,2-DichloroethaneHCID 962WaterHCID 757711-HydroxybenzotriazoleHCID 10487224(2E)-3-(6-aminopyridin-3-yl)prop-2-enoic acidHCID 221390221,4-dimethyl-3-(methylaminomethyl)-1H-indole

Product 1

HCID 10088258(E)-3-(6-aminopyridin-3-yl)-N-(1,4-dimethyl-1H-indole-3-ylmethyl)-N-methylacrylamideYield 36%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

To a stirred solution of 1,4-dimethyl-3-(methylaminomethyl)-1H-indole (188.2 mg, 1 mmole) and (E)-3-(6-aminopyridin-3-yl)acrylic acid (164 mg, 1 mmole) in dry DMF (12 mL) containing dry Et3N (4 mL) was added HOBt.H2O (153 mg, 1 mmole) and EDC (191.8 mg, 1 mmole). The reaction was stirred overnight under argon at ambient temperature, then was concentrated in vacuo. The residue was partitioned between EtOAc and 5% NaHCO3 solution, and the layers were separated. The organic layer was washed with brine, dried (MgSO4), filtered, and concentrated. Flash chromatography on silica gel afforded the title compound (120 mg, 36%) as a white solid: MS (ES) m/e 335.2 (M+H)+.

Workup

  1. concentrationwas concentrated in vacuo
  2. customThe residue was partitioned between EtOAc and 5% NaHCO3 solution
  3. customthe layers were separated
  4. washThe organic layer was washed with brine
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-846eee9694cb45638a53285bb20d70d2
Source dataset
uspto-grants-2012_04
Patent number
US08153652B2

Reaction notes

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