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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 28227Generated: October 27, 2026

Triethylamine → 1-(6-Fluoro-3-nitro-2-pyridinyl)-4-carbobenzoxypiperazine-2-carboxylic acid

https://huagongshe.com/reaction/28227

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2,6-Difluoro-3-nitropyridineHCID 11389546—
Reactant4-((Benzyloxy)carbonyl)piperazine-2-carboxylic acid hydrochlorideHCID 45072677—
SolventDimethyl SulfoxideHCID 679—
Product1-(6-Fluoro-3-nitro-2-pyridinyl)-4-carbobenzoxypiperazine-2-carboxylic acidHCID 23339770—

Reaction Steps

In a similar procedure to that described in Example 1, from 6.0 g. of 2,6-difluoro-3-nitropyridine, 9.0 g. of 4-carbobenzoxypiperazine-2-carboxylic acid, hydrochloride, 20 ml. of triethylamine and 150 ml. of dimethyl sulfoxide, there is obtained 14 g. of the title product as a viscous orange glass. Thin layer chromatographic analysis of this material shows essentially one spot.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04225713
Source datasetuspto-grants-1980_09
ORD IDord-765a3e619fa94e118f1a924523015681
Source noteuspto-grants-1980_09