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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2371183Generated: October 31, 2026

Hydrochloric Acid → HCID 57656808, compound

https://huagongshe.com/reaction/2371183

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 57656892HCID 57656892—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 57656808HCID 5765680860.1%

Reaction Steps

To benzyl 2-[(4-{[(3,4-dichlorophenyl)amino]carbonyl}piperazin-1-yl)methyl]-4-ethylpiperazine-1-carboxylate (20 mg) was added 4M HCl in dioxane (1 ml). The solvent was evaporated, 1-methyl-2-pyrrolidinone (1 ml), zinc bromide (10 mg) and 10% palladium on carbon (50 mg) added and the mixture stirred under hydrogen at RT for 72 hours. Evaporation to dryness and purification on a 10 g SCX2 column, eluting sequentially with ethyl acetate, MeOH and 1% ammonia/MeOH gave the title compound (9 mg, 60%) by precipitation from CH2Cl2 with isohexane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08710224B2
Source datasetuspto-grants-2014_04
ORD IDord-4e3f6f2cef444747ad9e662f10eb28a6
Source noteuspto-grants-2014_04