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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 83585Generated: October 29, 2026

Water → HCID 86680394, compound

https://huagongshe.com/reaction/83585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant(R)-4-Benzyl-2-oxazolidinoneHCID 2734969—
Reactant5-(2,4-Dimethoxybenzyl)-4-oxo-5-azaspiro[2.4]heptane-7-carboxylic AcidHCID 86680393—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventChloroformHCID 6212—
ProductHCID 86680394HCID 86680394—

Reaction Steps

To a solution of 5-(2,4-dimethoxybenzyl)-4-oxo-5-azaspiro[2.4]heptane-7-carboxylic acid (1.59 g) in chloroform (16 ml) were sequentially added (R)-4-benzyl-2-oxazolidinone (1.11 g), WSC.HCl (1.20 g) and N,N-dimethyl-4-aminopyridine (318 mg) at room temperature, and the mixture was stirred for 4 hours. To this reaction mixture was added water, and the organic layer was separated from the solution, and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate=2/1) to separate a low-polarity component as the titled compound (1.39 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846746B2
Source datasetuspto-grants-2014_09
ORD IDord-f9a91d34ee9e4421b589697e0c2533fa
Source noteuspto-grants-2014_09