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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2387934Generated: October 31, 2026

Triethylamine → 9-Pyridin-4-yloxy-3-azaspiro[5.5]undecane dihydrochloride

https://huagongshe.com/reaction/2387934

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant3,3-Difluoroazetidine hydrochlorideHCID 2758247—
Reactanttert-Butyl 9-oxo-3-azaspiro[5.5]undecane-3-carboxylateHCID 51072194—
Product9-Pyridin-4-yloxy-3-azaspiro[5.5]undecane dihydrochlorideHCID 66754470—

Reaction Steps

The preparation was carried out in two stages, analogously to the synthesis of amine F-39, from tert-butyl 9-oxo-3-azaspiro[5.5]undecane-3-carboxylate and 3,3-difluoroazetidine hydrochloride with the addition of triethylamine (1 equiv.), or as follows:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08269000B2
Source datasetuspto-grants-2012_09
ORD IDord-8ec5c6ba58ba43d1b847fa5f44899b70
Source noteuspto-grants-2012_09