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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 227253Generated: October 27, 2026

Phenylalanine amide → Tert-butyl 3-benzyl-2-oxo-1,4,8-triazaspiro[4,5]decane-8-carboxylate

https://huagongshe.com/reaction/227253

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenylalanine amideHCID 445694—
Reactanttert-Butyl 2-oxopiperidine-1-carboxylateHCID 7577838—
SolventEthanolHCID 702—
ProductTert-butyl 3-benzyl-2-oxo-1,4,8-triazaspiro[4,5]decane-8-carboxylateHCID 68839899—

Reaction Steps

N-tert-Butyloxycarbonylpiperidone (6.0 g, 29.8 mmol) was added to a solution of phenylalaninamide (4.9 g, 29.8 mmol) in dry EtOH (20 ml) and the mixture was heated under reflux for 2.5 h. The solvent was removed by distillation, and the tert-butyl 3-benzyl-2-oxo-1,4,8-triazaspiro[4,5]decane-8-carboxylate (10.8 g) was used in the following reaction without further workup.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560468B2
Source datasetuspto-grants-2009_07
ORD IDord-a2d1db906421471b89f7d544cf88dcf8
Source noteuspto-grants-2009_07