Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 600561Generated: October 25, 2026

Potassium Carbonate → HCID 59761156, compound

https://huagongshe.com/reaction/600561

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5-chloro-N,N-dimethylpyrazine-2-carboxamideHCID 59000470—
Reactantmethyl 3-hydroxy-5-[(3S)-1-methyl-2-oxo-pyrrolidin-3-yl]oxy-benzoateHCID 59761136—
SolventAcetonitrileHCID 6342—
ProductHCID 59761156HCID 5976115693%

Reaction Steps

A mixture of methyl 3-hydroxy-5-[(3S)-1-methyl-2-oxo-pyrrolidin-3-yl]oxy-benzoate (Intermediate 8) (530 mg, 2 mmol), 5-chloro-N,N-dimethyl-pyrazine-2-carboxamide (CAS no. 915949-00-7) (446 mg, 2.4 mmol) and potassium carbonate (552 mg, 4 mmol) in acetonitrile (15 mL) was stirred at 120° C. for 2 hours. The mixture was evaporated and the residue dissolved in ethyl acetate (30 mL), washed with water (2×10 mL) and brine (20 mL), dried (MgSO4) and evaporated. The residue was purified by flash chromatography on silica eluting with 50 to 100% ethyl acetate in isohexane to afford the product (772 mg, 93%). m/z 415 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07902200B2
Source datasetuspto-grants-2011_03
ORD IDord-5d462734a1ee42718c14a020c1385958
Source noteuspto-grants-2011_03