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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1720510Generated: November 1, 2026

Pyridine → HCID 22860068, compound

https://huagongshe.com/reaction/1720510

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantTrifluoroacetic acidHCID 6422—
ReactantDicyclohexylcarbodiimideHCID 10868—
ReactantHCID 54142722HCID 54142722—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 22860068HCID 2286006896.5%

Reaction Steps

To a solution of (2S)-2-{2-(2-[4-(benzyloxy)phenoxy]-1-hydroxyethyl}-1-[N-(3-phenylpropionyl)-L-prolyl]pyrrolidine (1.81 g) in DMSO (30 ml) were added pyridine (0.3 ml), trifluoroacetic acid (0.15 ml) and DCC (1.2 g), and the mixture was stirred at room temperature for 4 hours. The reaction mixture was poured into ice-water and extracted with ethyl acetate. The extract was washed with 1N hydrochloric acid, saturated aqueous solution of sodium bicarbonate and saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography (eluate: chloroform-methanol) to give 1.45 g of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05506256
Source datasetuspto-grants-1996_04
ORD IDord-7250d582d13242909483b414a79fab69
Source noteuspto-grants-1996_04