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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 260337Generated: October 26, 2026

Triethylamine → HCID 67683117, compound

https://huagongshe.com/reaction/260337

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant4-(4-Nitro-phenoxycarbonyloxy)-piperidine-1-carboxylic acid 6-[(4-phenoxy-phenyl)-oxycarbonylamino]-hexyl esterHCID 15293307—
Reactant8-Azaspiro(4.5)decane hydrochlorideHCID 22401229—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 67683117HCID 6768311782.4%

Reaction Steps

A solution of 8-aza-spiro[4.5]decane hydrochloride (791 mg, 4.50 mmol) and triethylamine (2.24 mL, 16.1 mmol) in 20 mL of anhydrous dimethylformamide was added under nitrogen dropwise to a solution of the carbonate prepared in Example 5 (2.00 g, 3.22 mmol) in 25 mL of anhydrous dimethylformamide. After the addition the reaction was stirred at room temperature overnight. The reaction was diluted with ethyl acetate, extracted one time with 1N HCl, multiple times with saturated Na2CO3 and then water, dried (MgSO4) and the solvent removed under reduced pressure to give 1.65 g of an oil. Purification of the oil on silica gel (230-400 mesh) using 20% ethyl acetate-methylene chloride as the eluent gave 1.01 g (52%) of the title compound as a light yellow oil, MS [M+H]+ 622.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05527804
Source datasetuspto-grants-1996_06
ORD IDord-81abfca44c954bb2a48ed2365b50d137
Source noteuspto-grants-1996_06