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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 7916Generated: October 28, 2026

Hydrochloric Acid → HCID 21991412, compound

https://huagongshe.com/reaction/7916

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantHCID 21991456HCID 21991456—
SolventEthyl AcetateHCID 8857—
ProductHCID 21991412HCID 2199141275%

Reaction Steps

To a solution of 4-(4-tert-butoxycarbonyl-1-piperazinyl)methyl-6-(3-fluoro-4-methylphenyl)-2-isobutyl-2H-pyridazin-3-one (115 mg, 0.25 mmol) in ethyl acetate (2 mL) was added a 4 mol/L solution (2 mL) of hydrochloric acid in ethyl acetate, and the mixture was stirred at 50 for 1 hour. The temperature of the reaction mixture was allowed to drop back to room temperature, and then, diethyl ether was added. The precipitate was collected to yield the title compound as a colorless crystalline powder (81.1 mg, 75.0%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07087606B2
Source datasetuspto-grants-2006_08
ORD IDord-255e4d7378f140328c7e6ec5faa61ba2
Source noteuspto-grants-2006_08