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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2090481Generated: October 30, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/2090481

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 59402271HCID 59402271—
SolventDiethyl EtherHCID 3283—
SolventEthyl AcetateHCID 8857—
ProductHydrochloric AcidHCID 313—
ProductHCID 59402262HCID 59402262—

Reaction Steps

tert-Butyl 4-{2-[2-amino-6-(4-methylpiperazin-1-yl)pyrimidin-4-yl]-3-methyl-1,2,3,4-tetrahydroisoquinolin-7-yl}-3,6-dihydropyridine-1(2H)-carboxylate (0.20 g, 0.38 mmol) in ethyl acetate (1.0 mL) was treated with 4.0 M of hydrogen chloride in 1,4-dioxane (1.0 mL, 4.0 mmol) at r.t. for 2 h. The mixture was diluted with ethyl ether, and centrifugalized. The solvents were decanted. The residue was dried in-vacuo to afford the desired product as HCl salt which was directly used in next step reaction without further purification. LCMS (M+H)+: m/z=420.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08436008B2
Source datasetuspto-grants-2013_05
ORD IDord-41839abb654348628b4828714f76ec00
Source noteuspto-grants-2013_05