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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2239566Generated: November 3, 2026

Hydrochloric Acid → HCID 67244509, compound

https://huagongshe.com/reaction/2239566

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantTetrahydrofuranHCID 8028—
Reactanttert-Butyl [1-(5-methylpyridin-2-yl)piperidin-4-yl]carbamateHCID 45786879—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 67244509HCID 6724450986.8%

Reaction Steps

A solution of tert-butyl [1-(5-methylpyridin-2-yl)piperidin-4-yl)carbamate (0.23 g, 0.79 mmol) in HCl in Dioxane (4M, 2 ml), THF (1 ml) and MeOH (1 ml) was stirred at room temperature. After 17 h, the reaction mixture was filtered, and the residue washed with EtOAc and dried to give the title compound (181 mg, 86.8%) as a solid. 1H NMR (500 MHz, D2O): 7.80 (d, 1H), 7.60 (s, 1H), 7.15 (d, 1H), 4.10-4.03 (m, 2), 3.53-3.44 (m, 1H), 3.21 (t, 2H), 2.16-2.10 (m, 5H), 1.65 (dq, 2H); 13C NMR (D2O): 150.8, 146.8, 133.9, 123.9, 112.9, 47.7, 44.7, 28.8; Mass Spectrum: M+H 192

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07723333B2
Source datasetuspto-grants-2010_05
ORD IDord-20ac6a94d052465cbf1ffc991a9e4d57
Source noteuspto-grants-2010_05