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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2352560Generated: November 2, 2026

Acetic Acid → HCID 14071983, compound

https://huagongshe.com/reaction/2352560

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantPotassium CarbonateHCID 11430—
ReactantChloropyrazineHCID 73277—
ReactantHCID 178470232HCID 178470232—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 14071983HCID 14071983—

Reaction Steps

A solution of 300 mg of 5-hydroxy-4-methoxy-methyl-β-carboline-3-carboxylic acid ethyl ester in 3 ml of dry dimethyl sulfoxide is combined with 155 mg of K2CO3 and stirred under nitrogen at room temperature for 30 minutes. After adding 0.2 ml of 2-chloropyrazine, the mixture is agitated for 6 hours at 95° C., then poured into 1N acetic acid and extracted with ethyl acetate. Purification over silica gel yields 242 mg (64%), mp 130°-131° C. (diethyl ether).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04877792
Source datasetuspto-grants-1989_10
ORD IDord-0b139b75cade4efb81991d213b50a151
Source noteuspto-grants-1989_10