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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 243065Generated: October 30, 2026

Hydrochloric Acid → 2-((S)-1-Aminoethyl)-5-fluoro-3-pyridin-2-yl-3H-benzoimidazole-4-carbonitrile dihydrochloride

https://huagongshe.com/reaction/243065

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant[(S)-1-(7-Cyano-6-fluoro-1-pyridin-2-yl-1H-benzoimidazol-2-yl)ethyl]carbamic acid tert-butyl esterHCID 68157921—
Solvent1,4-DioxaneHCID 31275—
Product2-((S)-1-Aminoethyl)-5-fluoro-3-pyridin-2-yl-3H-benzoimidazole-4-carbonitrile dihydrochlorideHCID 68157055100%

Reaction Steps

[(S)-1-(7-Cyano-6-fluoro-1-pyridin-2-yl-1H-benzoimidazol-2-yl)ethyl]carbamic acid tert-butyl ester (563 mg, 1.47 mmol) was dissolved in hydrochloric acid in dioxane (10 mL, 4M) and the reaction stirred at RT for 1 h. The reaction mixture was concentrated in vacuo to yield the title compound as an off-white solid (523 mg, 100%). LCMS (Method C): RT=1.75 min, [M+H]+=282.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653089B2
Source datasetuspto-grants-2014_02
ORD IDord-17d153e258d242de8f6ef249a6f98c6d
Source noteuspto-grants-2014_02