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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 504387Generated: October 29, 2026

Hydrochloric Acid → HCID 66661852, compound

https://huagongshe.com/reaction/504387

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetonitrileHCID 6342—
ReactantTrifluoroacetic acidHCID 6422—
ReactantDiisopropylethylamineHCID 81531—
Reactant3-Chloro-2-methylbenzenesulfonyl chlorideHCID 522734—
ReactantHCID 68463133HCID 68463133—
SolventMethanolHCID 887—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66661852HCID 66661852—

Reaction Steps

tert-Butyl((3S)-1-{[1-(4-chlorophenyl)cyclopropyl]carbonyl}pyrrolidin-3-yl) carbamate (7.30 mg, 0.0000200 mol) was treated with hydrogen chloride in 1,4-dioxane (4.0 M, 0.50 mL) at rt for 30 minutes. The solvent was evaporated under reduced pressure and acetonitrile (1.0 mL, 0.019 mol) was added. The mixture was then treated with N,N-diisopropylethylamine (20.0 μL, 0.000115 mol), followed by the addition of 3-chloro-2-methylbenzenesulfonyl chloride (4.50 mg, 0.0000200 mol) at rt. The reaction mixture was stirred at rt for 1 h and then acidified (pH=2.0) with TFA. The solution was diluted with methanol (0.80 mL) and was submitted for purification by prep-HPLC to give the desired product. LCMS: m/z 454.1 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07776874B2
Source datasetuspto-grants-2010_08
ORD IDord-539d1936a633478bb13dc07a3acab258
Source noteuspto-grants-2010_08