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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 59928Generated: October 29, 2026

Triethylamine → (S)-N-ethyl-2-(3-hydroxypiperidin-1-yl)pyrimidine-5-carboxamide

https://huagongshe.com/reaction/59928

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant(3S)-Piperidin-3-ol--hydrogen chloride (1/1)HCID 16211918—
ReactantHCID 118366250HCID 118366250—
SolventAcetonitrileHCID 6342—
Product(S)-N-ethyl-2-(3-hydroxypiperidin-1-yl)pyrimidine-5-carboxamideHCID 11836621273.9%

Reaction Conditions

Temperature80 °C

Reaction Steps

Triethylamine (1.5 mL, 11 mmol) and 2-chloro-N-ethylpyrimidine-5-carboxamide (830 mg, 4.47 mmol) were added sequentially to a solution of (S)-piperidin-3-ol hydrochloride (677 mg, 4.92 mmol) in acetonitrile (25 mL) at 20-25° C. The reaction mixture was heated to 80° C. for 16 hours. The mixture was then cooled to 20-25° C. and was concentrated under reduced pressure. The resulting residue was dissolved in EtOAc (25 mL) and washed with saturated NH4Cl (10 mL) and brine (10 mL). The organic phase was dried over Na2SO4, filtered, and concentrated to provide (S)—N-ethyl-2-(3-hydroxypiperidin-1-yl)pyrimidine-5-carboxamide (827 mg, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09440949B2
Source datasetuspto-grants-2016_09
ORD IDord-d8e0e4332cf940669e87b75322f7dad2
Source noteuspto-grants-2016_09