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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405347Generated: October 31, 2026

Hydrochloric Acid → HCID 68153302, compound

https://huagongshe.com/reaction/1405347

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 68153610HCID 68153610—
SolventAcetonitrileHCID 6342—
ProductHCID 68153302HCID 6815330299%

Reaction Steps

To tert-butyl 2-(methylcarbamoyl)-6-(trifluoromethyl)spiro[3,4-dihydropyrrolo[1,2-a]pyrazine-1,4′-piperidine]-1′-carboxylate (0.66 g, 1.6 mmol) and acetonitrile (5 mL) was added a solution of HCl in dioxane (5.2 mL of 4.0 M, 21 mmol). The reaction mixture was stirred at room temperature for 60 minutes. The solvent was evaporated under reduced pressure to yield N-methyl-6-(trifluoromethyl)spiro[3,4-dihydropyrrolo[1,2-a]pyrazine-1,4′-piperidine]-2-carboxamide hydrochloride as a brown solid (99%). ESI-MS m/z calc. 316.2, found 317.2 (M+1)+; Retention time: 0.77 minutes (3 min run).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916565B2
Source datasetuspto-grants-2014_12
ORD IDord-0b00c80b92a94bec952f3975e22a35c1
Source noteuspto-grants-2014_12