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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1840558Generated: October 30, 2026

Hydrochloric Acid → 4-[4-(1H-imidazol-1-ylmethyl)benzenesulfonyl]-1-(piperidin-4-ylmethyl)-2-piperazinone Dihydrochloride

https://huagongshe.com/reaction/1840558

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-[4-(1H-imidazol-1-ylmethyl)benzenesulfonyl]-1-[1-(tert-butoxycarbonyl)piperidin-4-ylmethyl]-2-piperazinoneHCID 23447305—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
Product4-[4-(1H-imidazol-1-ylmethyl)benzenesulfonyl]-1-(piperidin-4-ylmethyl)-2-piperazinone DihydrochlorideHCID 23447433—

Reaction Steps

To 4-[4-(1H-imidazol-1-ylmethyl)benzenesulfonyl]-1-[1-(tert-butoxycarbonyl)piperidin-4-ylmethyl]-2-piperazinone (420 mg) was added 4N hydrochloric acid in ethyl acetate (15 ml) and methanol (4 ml), and the mixture was stirred at room temperature for 30 minutes. The reaction solution was concentrated to give amorphous of the title compound (442 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06680312B2
Source datasetuspto-grants-2004_01
ORD IDord-c11bde2fa6a24776b9070b5ed1edfd60
Source noteuspto-grants-2004_01