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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2081702Generated: October 26, 2026

3-Methylpentanoic acid → N-{1-[3-(3-methylbutylcarbonylamino)benzyl]indol-5-ylcarbonyl}-2-methylbenzene sulphonamide

https://huagongshe.com/reaction/2081702

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Methylpentanoic acidHCID 7755—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantN-[1-(3-aminobenzyl)indol-5-ylcarbonyl]-2-methylbenzene sulphonamideHCID 19780416—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductN-{1-[3-(3-methylbutylcarbonylamino)benzyl]indol-5-ylcarbonyl}-2-methylbenzene sulphonamideHCID 19780409—

Reaction Steps

A mixture of the amine (Example 4) (0.25 g), 3-methylvaleric acid (0.07 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.126 g) and 4-dimethylaminopyridine (0.02 g) in dichloromethane (5 ml) was stirred at room temperature for 96 hours. The reaction mixture was washed with water then saturated brine, dried over anhydrous magnesium sulphate, filtered and evaporated in vacuo. Purification by flash chromatography on silica, eluting with 0-30% ethyl acetate in hexane, afforded N-{1-[3-(3-methylbutylcarbonylamino)benzyl]indol-5-ylcarbonyl}-2-methylbenzene sulphonamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05185361
Source datasetuspto-grants-1993_02
ORD IDord-89339267f82641a1807c4b1d82f73b43
Source noteuspto-grants-1993_02