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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1465744Generated: October 30, 2026

Hydrochloric Acid → 3-(2-Oxopiperazin-1-yl)isoquinoline-7-carbonitrile hydrochloride

https://huagongshe.com/reaction/1465744

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 4-(7-cyanoisoquinolin-3-yl)-3-oxopiperazine-1-carboxylateHCID 89525285—
Solvent1,4-DioxaneHCID 31275—
Product3-(2-Oxopiperazin-1-yl)isoquinoline-7-carbonitrile hydrochlorideHCID 89525109—

Reaction Steps

The product of Step B was further treated with 4N HCl in dioxane, and removal of solvent furnished 3-(2-oxopiperazin-1-yl)isoquinoline-7-carbonitrile hydrochloride. The HCl salt was washed with aqueous sodium carbonate, and back extracted with CHCl3-IPA (3:1) to furnish the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08999991B2
Source datasetuspto-grants-2015_04
ORD IDord-11fd0351b9cd4a05be8a5f8fee0e2a54
Source noteuspto-grants-2015_04