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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1191939Generated: October 30, 2026

Hydrochloric Acid → (2S)-1-[(1R,2R)-5-bromo-2-ethoxy-2,3-dihydro-1H-inden-1-yl]-2-methyl-4-(4-methylpiperidin-4-yl)piperazine trihydrochloride

https://huagongshe.com/reaction/1191939

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl 4-{(3S)-4-[(1R,2R)-5-Bromo-2-ethoxy-2,3-dihydro-1H-inden-1-yl]-3-methylpiperazin-1-yl}-4-methylpiperidine-1-carboxylateHCID 68741852—
SolventTetrahydrofuranHCID 8028—
Solvent1,4-DioxaneHCID 31275—
Product(2S)-1-[(1R,2R)-5-bromo-2-ethoxy-2,3-dihydro-1H-inden-1-yl]-2-methyl-4-(4-methylpiperidin-4-yl)piperazine trihydrochlorideHCID 68742760—

Reaction Steps

To a solution of tert-butyl 4-{(3S)-4-[(1R,2R)-5-bromo-2-ethoxy-2,3-dihydro-1H-inden-1-yl]-3-methylpiperazin-1-yl}-4-methylpiperidine-1-carboxylate (50 mg, 0.093 mmol) in tetrahydrofuran (3 mL) was added a 4.00 M solution of hydrogen chloride in 1,4-dioxane (3 mL). The reaction mixture was stirred at room temperature for 1 h. Evaporation under reduced pressure afforded the desired de-Boc product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08680104B2
Source datasetuspto-grants-2014_03
ORD IDord-60a0a8efe24441a29629fe7bb52969b3
Source noteuspto-grants-2014_03