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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2091420Generated: November 2, 2026

Dimethylformamide → HCID 66777839, compound

https://huagongshe.com/reaction/2091420

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantAmmonium ChlorideHCID 25517—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantEthyl 3-(methylamino)propanoateHCID 541480—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 66778587HCID 66778587—
SolventTriethylamineHCID 8471—
ProductHCID 66777839HCID 6677783956%

Reaction Steps

A mixture of 6-({1-[5-(cyclopropylmethoxy)-3-methyl-1-benzofuran-2-yl]-2-methylpropyl}amino)pyridine-3-carboxylic acid (145 mg) synthesized above, ethyl 3-(methylamino)propanoate (58 mg), 1-hydroxybenzotriazole.monohydrate (67 mg), triethylamine (122 μL), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (84 mg) and N,N-dimethylformamide (2 mL) was stirred at room temperature for 18 hr. Saturated aqueous ammonium chloride solution was added to quench the reaction, and the reaction mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane-ethyl acetate 100:0-0:100, v/v) to give the title compound (104 mg, 56%) as a colorless amorphous form.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08436043B2
Source datasetuspto-grants-2013_05
ORD IDord-5913ee7375e446249c8e89fe5b80df7e
Source noteuspto-grants-2013_05