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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1006978Generated: October 31, 2026

Hydrochloric Acid → HCID 22503366, compound

https://huagongshe.com/reaction/1006978

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 22503411HCID 22503411—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 22503366HCID 2250336636%

Reaction Steps

The resulting 1-(4-ethylpiperazin-1-yl)-3-{4-[N-(2-benzyloxyethyl)carbamoyl]phenyl}isoquinoline (0.17 g) was converted into a hydrochloride in a conventional manner. The resulting hydrochloride was dissolved in methanol (10 ml), followed by the addition of 10% palladium/carboncatalyst (0.03 g), and the catalytic reduction was conducted at atmospheric pressure for 2 days. The catalyst was filtered off, and the solvent was evaporated. Water was added to the resulting residue, to which was then added sodium carbonate to adjust the resulting solution to pH 8, and the resulting mixture was extracted with ethyl acetate. The extract was washed with brine, and dried over magnesium sulfate. The solvent was evaporated, and the resulting residue was purified by silica gel column chromatography (chloroform/methanol system), to give 0.05 g of the free compound of the title compound as a pale brown amorphous.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06790844B2
Source datasetuspto-grants-2004_09
ORD IDord-bde3778b6c2c4982a98311836fe3ea2d
Source noteuspto-grants-2004_09