Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2363537Generated: October 30, 2026

Hydrochloric Acid → 1-((3aR,4S,6aS)-4-aminohexahydrocyclopenta[c]pyrrol-2(1H)-yl)-3-methyl-2-phenylbutan-1-one hydrochloric acid salt

https://huagongshe.com/reaction/2363537

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
Reactanttert-butyl(3aR,4S,6aS)-2-(3-methyl-2-phenylbutanoyl)octahydrocyclopenta[c]pyrrol-4-ylcarbamateHCID 66590911—
SolventDiethyl EtherHCID 3283—
Product1-((3aR,4S,6aS)-4-aminohexahydrocyclopenta[c]pyrrol-2(1H)-yl)-3-methyl-2-phenylbutan-1-one hydrochloric acid saltHCID 66590901—

Reaction Steps

tert-Butyl(3aR,4S,6aS)-2-(3-methyl-2-phenylbutanoyl)octahydrocyclopenta[c]pyrrol-4-ylcarbamate (39 mg, 0.101 mmol) from Step C was combined with 4 M HCl in dioxane (5 mL, 20.00 mmol) in ether (5 mL). After about 2 hours, the solvent was removed in vacuo to give 1-((3aR,4S,6aS)-4-aminohexahydrocyclopenta[c]pyrrol-2(1H)-yl)-3-methyl-2-phenylbutan-1-one hydrochloric acid salt which was used in the next step without additional purification: MS (ESI+) m/z 287 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691865B2
Source datasetuspto-grants-2014_04
ORD IDord-02b034d125554e5dafa70dc355a9a590
Source noteuspto-grants-2014_04