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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2231039Generated: October 30, 2026

Hydrochloric Acid → HCID 22724215, compound

https://huagongshe.com/reaction/2231039

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium BromideHCID 82050—
ReactantHCID 22724091HCID 22724091—
SolventDimethylformamideHCID 6228—
ProductHCID 22724215HCID 2272421581.9%

Reaction Steps

A mixture of 2-benzyl-4-[3-(4-methoxycarbonylphenyl)phenyl]-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (150 mg) and lithium bromide (0.30 g) in N,N-dimethylformamide (3 ml) was stirred under reflux for 4 hours. The mixture was cooled and poured into dilute hydrochloric acid with stirring. The resultant precipitate was collected and washed with water to give 2-benzyl-4-[3-(4-carboxyphenyl)phenyl]-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (119 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06426345B1
Source datasetuspto-grants-2002_07
ORD IDord-a0cd450fc7994110a6ceab84e2822512
Source noteuspto-grants-2002_07