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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 869149Generated: October 30, 2026

Hydrochloric Acid → HCID 67452623, compound

https://huagongshe.com/reaction/869149

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 67451790HCID 67451790—
ReactantHCID 178418689HCID 178418689—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67452623HCID 6745262318%

Reaction Conditions

Temperature0 °C

Reaction Steps

6-((1-(3-Fluoropyridin-2-yl)cyclobutyl)methylamino)pyridazine-3-carbonitrile (500 mg, 1.8 mmol, 1.0 equiv) was dissolved in THF (4.5 mL) and transferred to a 20 dram vial. The mixture was cooled to 0° C. and MeMgBr (1.8 mL, 5.3 mmol of a 3M solution in Et2O, 2.9 equiv) was added. The reaction was stirred at this temperature for 15 min. The reaction mixture was poured into ice water, acidified to pH of 2 with 2N aqueous hydrochloric acid, and then extracted EtOAc (30 mL). The organic layer was then separated, dried over Na2SO4, filtered, and concentrated to give a crude solid that was purified by silica gel column chromatography (50% EtOAc/hexanes) to give 104 mg (18%) of 1-(6-((1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyridazin-3-yl)ethanone as a white powder. m/z=301.1 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08969346B2
Source datasetuspto-grants-2015_03
ORD IDord-5cd744e7d0c24a17bd1053cf29304766
Source noteuspto-grants-2015_03