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

HRID 1921055Notes

Reaction equation

HRID 1921055 reaction equation
C(Cl)CCl.[NH2:5][C:6]1[N:11]=[CH:10][C:9]([CH:12]=[CH:13][C:14]([OH:16])=O)=[CH:8][CH:7]=1.[CH3:17][NH:18][CH2:19][C:20]1[NH:21][C:22]2[C:27]([CH:28]=1)=[CH:26][CH:25]=[CH:24][CH:23]=2.C1C=CC2N(O)N=NC=2C=1.O.C(N(C(C)C)CC)(C)C>CN(C=O)C>[NH2:5][C:6]1[N:11]=[CH:10][C:9](/[CH:12]=[CH:13]/[C:14]([N:18]([CH2:19][C:20]2[NH:21][C:22]3[C:27]([CH:28]=2)=[CH:26][CH:25]=[CH:24][CH:23]=3)[CH3:17])=[O:16])=[CH:8][CH:7]=1

Participants

8

Reactant 6

HCID 111,2-DichloroethaneHCID 962WaterHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 11194490N-Methyl-1H-indole-2-methanamineHCID 534008323-(6-Aminopyridin-3-yl)prop-2-enoic acid

Product 1

HCID 9861351(E)-3-(6-aminopyridin-3-yl)-N-(1H-indol-2-ylmethyl)-N-methylacrylamideYield 68.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

EDC (0.30 g, 138 mmole) was added to a solution of 3-(6-aminopyridin-3-yl)acrylic acid (0.26 g, 138 mmole). 2-(methylaminomethyl)-1H-indole (0.23 g, 1.43 mmole), HOBt.H2O (0.21 g, 1.58 mmole) and diisopropylethylamine (0.51 mL, 2.86 mmole) in DMF (20 mL) at RT. The reaction was stirred overnight, then was concentrated in vacuo. The residue was diluted with water and extracted with ethyl acetate. The combined organic extracts were washed with brine and dried over Na2SO4. Flash chromatography on silica gel (10% MeOH/CHCl3) gave the title compound (0.30 g, 68%) as a light yellow solid: MS (ES) m/e 307 (M+H)+.

Workup

  1. customat RT
  2. concentrationwas concentrated in vacuo
  3. additionThe residue was diluted with water
  4. extractionextracted with ethyl acetate
  5. washThe combined organic extracts were washed with brine
  6. dry with materialdried over Na2SO4

Sources & evidence

ORD record
ord-aaf23d8282f043c9bcf2ffbd0f42098c
Source dataset
uspto-grants-2012_05
Patent number
US08173646B2

Reaction notes

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