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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2201568Generated: October 29, 2026

Ethyl orthoformate → HCID 117771578, compound

https://huagongshe.com/reaction/2201568

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl orthoformateHCID 31214—
ReactantHCID 117771064HCID 117771064—
ProductHCID 117771578HCID 11777157845%

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of 3-amino-6-bromo-N-(2-fluorophenyl)picolinamide (160 mg, 0.516 mmol) in triethoxymethane (5 mL) was stirred at 130° C. for 15 h. The mixture was cooled to room temperature and extracted with ethyl acetate (10 mL*3), the combined organic layers were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated to afford 6-bromo-3-(2-fluorophenyl)pyrido[3,2-d]pyrimidin-4(3H)-one (75 mg, yield: 45%), which was used for the next step without further purification. MS (M+H)+:320/322

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09364482B2
Source datasetuspto-grants-2016_06
ORD IDord-501e833da7d24dbf9cab3ba41977885b
Source noteuspto-grants-2016_06