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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 3302Generated: October 25, 2026

Hydrochloric Acid → 7a-(3-Ethyl-5-isoxazolyl)-hexahydro-1h-pyrrolizine hydrochloride salt

https://huagongshe.com/reaction/3302

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant7a-(3-ethyl-5-isoxazolyl)-hexahydro-1H-pyrrolizineHCID 18934751—
SolventDiethyl EtherHCID 3283—
Product7a-(3-Ethyl-5-isoxazolyl)-hexahydro-1h-pyrrolizine hydrochloride saltHCID 18934762—

Reaction Steps

7a-(3-ethyl-5-isoxazolyl)-hexahydro-1H-pyrrolizine (265 mg, 1.30 mmol, from step 13b) was dissolved in Et2O, and Et2O saturated with HCl (g) was added. The solvent was removed, and the precipitate was recrystallized from methanol/ethanol to afford the title compound as a white solid: mp 139°-140° C.; 1H NMR D2O, 300 MHz) δ1.23 (t, J=7.5 Hz, 3H), 2.17-2.40 (m, 6H), 2.58-2.75 (m, 4H), 3.29-3.38 (m, 2H), 3.69-3.77 (m, 2H), 6.64 (s, 1H); MS (CI/NH3) m/z: 207 (M+H)+ ; Anal. Calcd for C12H18N2O.HCl: C, 59.38; H, 7.89; N, 11.54. Found: C, 59.44; H, 7.94; N, 11.48.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05733912
Source datasetuspto-grants-1998_03
ORD IDord-6a17fe06ca0a4559821af5872f757c00
Source noteuspto-grants-1998_03