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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2224302Generated: October 31, 2026

Ethyl Acetate → 6-Acetyl-3-fluoro-5,6-dihydro-2-(6-methoxy-3-pyridinyl)-pyrido[3,2-c][1]benzazocine

https://huagongshe.com/reaction/2224302

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantSodium CarbonateHCID 10340—
Reactant2-Methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridineHCID 16217714—
Reactant6-Acetyl-2-chloro-3-fluoro-5,6-dihydro-pyrido[3,2-c][1]benzazocineHCID 74393412—
CatalystHCID 178418397HCID 178418397—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
Product6-Acetyl-3-fluoro-5,6-dihydro-2-(6-methoxy-3-pyridinyl)-pyrido[3,2-c][1]benzazocineHCID 6929119796%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 1D (20 mg, 0.066 mmol) in toluene (0.5 mL) and EtOH (0.3 mL) was added a 2M aqueous solution of Na2CO3 (0.3 mL, 0.6 mmol). The resulting solution was purged with argon for 30 minutes and 2A (23.3 mg, 0.099 mmol) was added, followed by a catalytic amount of Pd(PPh3)4. The reaction was heated to 100° C. for 15 minutes, then cooled to ambient temperature. EtOAc and H2O were added, the layers were separated and the organic phase was washed with saturated aqueous NaHCO3 solution, dried (Na2SO4), filtered and concentrated. The residue was purified by flash chromatography (SiO2, 100% CH2Cl2 then 100% EtOAc) to afford 2B (23.7 mg, 96%). HPLC Rt=3.182 min; LCMS Found: (M+H)+=376.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07378426B2
Source datasetuspto-grants-2008_05
ORD IDord-41e76cc03ecd4a4db7980f61858427bb
Source noteuspto-grants-2008_05