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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 323309Generated: October 26, 2026

Methanesulfonic Acid → 1-(3,4,5-Trimethoxybenzyl)-3-(3-(4-(1h-benzimidazol-2-yl-amino)piperidin-1-yl)propyl)-3-(4-fluorophenylmethyl)-2-oxopyrrolidine methanesulfonic acid salt

https://huagongshe.com/reaction/323309

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonic AcidHCID 6395—
ReactantEthyl AcetateHCID 8857—
Reactant1-(3,4,5-trimethoxybenzyl)-3-(3-(4-(1H-benzimidazol-2-yl-amino)piperidin-1-yl)propyl)-3-(4-fluorophenylmethyl)-2-oxopyrrolidineHCID 9895457—
SolventDiethyl EtherHCID 3283—
Product1-(3,4,5-Trimethoxybenzyl)-3-(3-(4-(1h-benzimidazol-2-yl-amino)piperidin-1-yl)propyl)-3-(4-fluorophenylmethyl)-2-oxopyrrolidine methanesulfonic acid saltHCID 22009175—

Reaction Steps

Combine 1-(3,4,5-trimethoxybenzyl)-3-(3-(4-(1H-benzimidazol-2-yl-amino)piperidin-1-yl)propyl)-3-(4-fluorophenylmethyl)-2-oxopyrrolidine (0.37 g, 0.56 mmol), methanesulfonic acid (0.17 g, 1.8 mmol), and ethyl acetate (10 mL). Heat to reflux. After 1 hour, cool to ambient temperature and add diethyl ether (75 mL). After 12 hour, collect the solid that forms and add diethyl ether (80 mL) and stir. After 12 hours, decant the solvent and collect the solid, rinse with diethyl ether and dry in vacuo to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211199B1
Source datasetuspto-grants-2001_04
ORD IDord-556f1a876048470f96dfbda3325ed5c5
Source noteuspto-grants-2001_04