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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2354080Generated: October 31, 2026

Ethyl Acetate → HCID 58816573, compound

https://huagongshe.com/reaction/2354080

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantSodium BicarbonateHCID 516892—
ReactantAluminium lithium hydrideHCID 21226445—
ReactantHCID 68690135HCID 68690135—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
ProductHCID 58816573HCID 58816573—

Reaction Steps

The crude 1-[2-(4-benzyl-piperidin-1-yl)-2-oxo-ethyl]-3-(2-methyl-pyridin-4-yl)-urea (Example 39.1., 0.5 mmol) is dissolved in THF (5 mL) and added to a cooled (0° C.) suspension of LiAlH4 (100 mg, 2.5 mmol) in THF (20 mL). The mixture is warmed during 15 h to r.t. The reaction mixture is carefully added to EtOAc (100 mL) and MeOH (5 mL), and, subsequently, sat. aq. NaHCO3 (2 mL) are added. The mixture is filtered, the filtercake washed with MeOH (2×50 mL), and the filtrate is evaporated. The residue is taken up in a minimal amount of MeOH, diluted with CH2Cl2, dried (Na2SO4), filtered and evaporated. The residue is purified by HPLC to provide the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07750161B2
Source datasetuspto-grants-2010_07
ORD IDord-2794d66e7f904de4bf8478c953bf4f27
Source noteuspto-grants-2010_07