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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2401134Generated: October 31, 2026

Hydrochloric Acid → 2-[5-((2S,3'S)-2-Methyl-[1,3']bipyrrolidinyl-1'-yl)-pyrazin-2-yl]-2,8-diaza-spiro[4.5]decan-1-one

https://huagongshe.com/reaction/2401134

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-[5-((2S,3'S)-2-methyl-[1,3']bipyrrolidinyl-1'-yl)-pyrazin-2-yl]-1-oxo-2,8-diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl esterHCID 54591154—
Solvent1,4-DioxaneHCID 31275—
Product2-[5-((2S,3'S)-2-Methyl-[1,3']bipyrrolidinyl-1'-yl)-pyrazin-2-yl]-2,8-diaza-spiro[4.5]decan-1-oneHCID 68211199123.2%

Reaction Steps

Hydrochloric acid in dioxane (0.5 mL) was added to 2-[5-((2S,3′S)-2-methyl-[1,3′]bipyrrolidinyl-1′-yl)-pyrazin-2-yl]-1-oxo-2,8-diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester (0.0185 g, 0.038 mmol) and stirred at room temperature for 3 hours. Reaction mixture was then concentrated under vacuum to afford 0.018 g (96%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08796278B2
Source datasetuspto-grants-2014_08
ORD IDord-0f94a6db9fb04e1f89e1110669021a8e
Source noteuspto-grants-2014_08