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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57652Generated: October 29, 2026

Hydrogen chloride-ethyl acetate → HCID 71113939, compound

https://huagongshe.com/reaction/57652

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen chloride-ethyl acetateHCID 21866389—
ReactantTert-butyl 4,4-difluoro-3-((7-(4-((2-hydroxyethyl)(methyl)amino)phenyl)pyrido[4,3-b]pyrazin-5-ylamino)methyl)piperidine-1-carboxylateHCID 71113935—
SolventEthyl AcetateHCID 8857—
ProductHCID 71113939HCID 7111393965.3%

Reaction Steps

A solution of tert-butyl 4,4-difluoro-3-((7-(4-((2-hydroxyethyl)(methyl)amino)phenyl) pyrido[4,3-b]pyrazin-5-ylamino)methyl)piperidine-1-carboxylate (25 mg, 0.05 mmol) and 2 mL of HCl-EA (5.0 N) in 4 mL of EA was stirred at room temperature for 1.5 hours. The volatiles were removed in vacuo, and the residue was added to 5 mL of MeOH and 0.5 mL of NH3.H2O. The volatiles were removed in vacuo, and the residue was purified by chromatography with MeOH/H2O (1:10-5:1) to give 14 mg of title compound. MS (m/z)=429 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434726B2
Source datasetuspto-grants-2016_09
ORD IDord-3dd19660fe474369a0d1b33a6638f0ee
Source noteuspto-grants-2016_09