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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 449311Generated: October 31, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/449311

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-butyl 7-[2-amino-6-(4-methylpiperazin-1-yl)pyrimidin-4-yl]-3,4-dihydroisoquinoline-2(1H)-carboxylateHCID 59496680—
SolventMethanolHCID 887—
Solvent1,4-DioxaneHCID 31275—
ProductHydrochloric AcidHCID 313—
Product4-(4-Methylpiperazin-1-yl)-6-(1,2,3,4-tetrahydroisoquinolin-7-yl)pyrimidin-2-amineHCID 49779438—

Reaction Steps

6 mL of 4N HCl in dioxane was added to a solution of tert-butyl 7-[2-amino-6-(4-methylpiperazin-1-yl)pyrimidin-4-yl]-3,4-dihydroisoquinoline-2(1H)-carboxylate (0.90 g, 2.1 mmol) in methanol (5 mL). The mixture was stirred at r.t. for 2 h. The mixture was concentrated under reduced pressure. The residue was washed with ether and dried under vacuum to afford the desired product as an HCl salt (0.83 g). Analytic LCMS (M+H)+: m/z=325.4.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08481732B2
Source datasetuspto-grants-2013_07
ORD IDord-76982313218742ccb3a1a3f9dd696804
Source noteuspto-grants-2013_07