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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 873492Generated: October 27, 2026

1,2-Dichloroethane → HCID 86730098, compound

https://huagongshe.com/reaction/873492

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantDiethylamineHCID 8021—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1-N-Cbz-pyrrolidine-3-carboxylic acidHCID 18538483—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 86730098HCID 8673009891.1%

Reaction Steps

Under an argon atmosphere, 1-[(benzyloxy)carbonyl]-3-pyrrolidinecarboxylic acid (500 mg) was dissolved in DMF (5 mL), added with N,N-diethylamine (0.293 g), further with EDC (769 mg) and HOBt (542 mg) and stirred at room temperature for 72 hours. The reaction solution was diluted with ethyl acetate, sequentially washed with 1 N hydrochloric acid, a 1 N sodium hydroxide aqueous solution, water and a saturated sodium chloride solution and dried over anhydrous magnesium sulphate before distillation of the solvent. The resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=95:5→0:1) to give the titled compound (556 mg) having the following physical properties.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975409B2
Source datasetuspto-grants-2015_03
ORD IDord-faa630fda3354187a42b14669b9fb258
Source noteuspto-grants-2015_03