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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1441952Generated: November 1, 2026

Cyclopentanecarboxylic acid, 2-oxo-, methyl ester → HCID 68540960, compound

https://huagongshe.com/reaction/1441952

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopentanecarboxylic acid, 2-oxo-, methyl esterHCID 66328—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
SolventTolueneHCID 1140—
ProductHCID 68540960HCID 68540960130.9%

Reaction Steps

To a solution of methyl 2-oxocyclopentanecarboxylate (15.6 mg, 0.11 mmol) and (R,R)-trans-1-[3,5-bis(trifluoromethyl)phenyl]-3-[2-(N,N-dimethylamino)cyclohexyl]thiourea (4.1 mg, 0.01 mmol) in toluene (1 mL) was added diethyl azodicarboxylate (45.5 μL, 0.10 mmol) at room temperature. After stirring for 0.5 hr, the reaction mixture was concentrated. The residue was purified by silica gel column (hexane/ethyl acetate=3/1) to give the title compound (41.4 mg, yield: 92%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07655817B2
Source datasetuspto-grants-2010_02
ORD IDord-de308b62f985419eb37c292574695f93
Source noteuspto-grants-2010_02