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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 595936Generated: October 31, 2026

Sodium Carbonate → (S)-4-(3-aminopyrazin-2-yl)-N-(1-(3-chlorophenyl)-2-hydroxyethyl)-2-fluorobenzamide

https://huagongshe.com/reaction/595936

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantSodium SulfateHCID 24436—
Reactant2-Amino-3-chloropyrazineHCID 276224—
Reactant(S)-4-(1-(3-chlorophenyl)-2-hydroxyethylcarbamoyl)-3-fluorophenylboronic acidHCID 123263941—
CatalystHCID 178418807HCID 178418807—
Solvent1,2-DimethoxyethaneHCID 8071—
Product(S)-4-(3-aminopyrazin-2-yl)-N-(1-(3-chlorophenyl)-2-hydroxyethyl)-2-fluorobenzamideHCID 11804600668%

Reaction Conditions

Temperature120 °C

Reaction Steps

To the reaction mixture of 3-chloropyrazin-2-amine (288 mg, 2.22 mmol), (S)-4-(1-(3-chlorophenyl)-2-hydroxyethylcarbamoyl)-3-fluorophenylboronic acid (500 mg, 1.48 mmol), PdCl2(dppf)-DCM (108 mg, 0.148 mmol), DME (1.1 mL), 2M Na2CO3 (3.703 mL) was added. The reaction mixture was heated at microwave synthesizer (120° C., 12 min). To the reaction mixture, anhydrous sodium sulfate was added, filtered, and concentrated. The crude product was pre-purified by flash chromatography eluting with EtOAc (containing 10% MeOH) in heptane. The pure fractions were combined and concentrated to provide 389 mg of the desired product in 68% yield. LCMS (m/z): 387 (MH+), 0.69 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09242996B2
Source datasetuspto-grants-2016_01
ORD IDord-32dd453d1ef74f85ab544a75af4fe712
Source noteuspto-grants-2016_01