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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42552Generated: October 29, 2026

1,4-Dioxane → ((+/-)-(cis)-2-Aminocyclobutyl)((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidin-1-yl)methanone hydrochloride

https://huagongshe.com/reaction/42552

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 59475009HCID 59475009—
SolventHydrochloric AcidHCID 313—
Product((+/-)-(cis)-2-Aminocyclobutyl)((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidin-1-yl)methanone hydrochlorideHCID 68493990—

Reaction Steps

A solution of tert-butyl (±)-(cis)-2-((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidine-1-carbonyl)cyclobutylcarbamate (160 mg, 0.366 mmol) in 4 M HCl in dioxane (5 mL, 20.00 mmol HCl) was stirred at room temperature for 3 hours. After this time, the mixture was concentrated in vacuo, then concentrated 3× from methylene chloride to remove residual HCl and dioxane, to yield the title compound as a colorless solid which was used without purification in the next step. MS (ESI+)=327.3 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536198B2
Source datasetuspto-grants-2013_09
ORD IDord-973170c6a917419ea1041d25ce50b96a
Source noteuspto-grants-2013_09