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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 411176Generated: October 30, 2026

Hydrochloric Acid → HCID 18540442, compound

https://huagongshe.com/reaction/411176

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 18540402HCID 18540402—
SolventEthyl AcetateHCID 8857—
ProductHCID 18540442HCID 1854044294%

Reaction Conditions

Temperature0 °C

Reaction Steps

tert-Butyl 7-[4-(4-pyridinyl)butyl]-9-oxa-3,7-diazabicyclo[3.3.1]nonane-3-carboxylate (0.9 g, 2.5 mmol, from step (i) above) was dissolved in ethylacetate, and then treated with ethylacetate saturated with HCl at 0° C. The mixture was stirred for 1 h at 0° C., and then at rt overnight. The solvent was evaporated. CH3CN (100 mL) and water (2 mL) were added together with K2CO3 (3.22 g). The mixture was stirred overnight. Filtration and evaporation gave the sub-title compound in 94% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06559143B1
Source datasetuspto-grants-2003_05
ORD IDord-3946177110894f299ddfc963688fa778
Source noteuspto-grants-2003_05