1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → 7-Ethyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-1H-indole-2-carboxamide

HRID 1042136Notes

Reaction equation

HRID 1042136 reaction equation
[CH2:1]([C:3]1[CH:4]=[C:5]([O:15][C:16]2[CH:17]=[N:18][C:19]([S:22]([CH3:25])(=[O:24])=[O:23])=[CH:20][CH:21]=2)[CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12]([OH:14])=O)=[CH:8]2)[CH3:2].[NH4+].O[N:28]1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>CN(C)C=O>[CH2:1]([C:3]1[CH:4]=[C:5]([O:15][C:16]2[CH:17]=[N:18][C:19]([S:22]([CH3:25])(=[O:24])=[O:23])=[CH:20][CH:21]=2)[CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12]([NH2:28])=[O:14])=[CH:8]2)[CH3:2]

Participants

5

Reactant 3

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 220338091-Hydroxybenzotriazole, ammonium saltHCID 667260097-Ethyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-1H-indole-2-carboxylic acid

Product 1

HCID 667261757-Ethyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-1H-indole-2-carboxamideYield 100.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 7-ethyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-1H-indole-2-carboxylic acid (3.4 g) in N,N-dimethylformamide (40 mL) were added under ice-cooling 1-hydroxybenzotriazole ammonium salt (2.2 g) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (2.8 g), and the mixture was stirred from under ice-cooling to room temperature for 15 hr. The reaction solution was concentrated under reduced pressure, water was added to the obtained residue, and the mixture was extracted with ethyl acetate. The organic layer was washed with aqueous sodium hydrogen carbonate solution and saturated brine, dried over magnesium sulfate, filtered and concentrated under reduced pressure to give the title compound (3.4 g, yield 100%) as a pale-yellow amorphous solid.

Workup

  1. concentrationThe reaction solution was concentrated under reduced pressure, water
  2. additionwas added to the obtained residue
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with aqueous sodium hydrogen carbonate solution and saturated brine
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-55cda76ab7f742c3a7fd740d491003b6
Source dataset
uspto-grants-2013_10
Patent number
US08557805B2

Reaction notes

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