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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2226029Generated: October 25, 2026

1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (S)-1-(N-(3-chlorophenyl)-N-phenylcarbamoyl)-2-(2-(N-methyl-N-(2-methoxybenzyl)amino)ethylaminocarbonyl)-4-(N,N-di-n-pentylcarbamoyl) piperazine

https://huagongshe.com/reaction/2226029

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantN1-(2-methoxybenzyl)-N1-methylethane-1,2-diamineHCID 6484249—
Reactant1-[3-chlorophenyl(phenyl)carbamoyl]-4-dipentylcarbamoyl-(2S)-hexahydro-2-pyrazinecarboxylic acidHCID 22850667—
Product(S)-1-(N-(3-chlorophenyl)-N-phenylcarbamoyl)-2-(2-(N-methyl-N-(2-methoxybenzyl)amino)ethylaminocarbonyl)-4-(N,N-di-n-pentylcarbamoyl) piperazineHCID 1865455984.5%

Reaction Steps

According to the procedure of Example 1, Step E above, 43 mg (0.079 mmole) of (S)-4-(dipentylcarbamoyl)-1-(N-(3-chlorophenyl)-N-phenylcarbamoyl)piperazine-2-carboxylic acid, 12 mg (0.087 mmole) of HOBt, 21 mg (0.111 mmole) of EDAC, and 31 mg (0.158 mmole) of N-(2-methoxybenzyl)-N-methylethylenediamine after purification by flash chromatography on 16 g of silica gel eluting with 100:4 CH2Cl2 :methanol provided 48 mg (84%) of an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05344830
Source datasetuspto-grants-1994_09
ORD IDord-84e404fe6aae4625a9527b16bca1fc0f
Source noteuspto-grants-1994_09