6-Chloro-5-(2-propyn-1-ylamino)-2-pyrazinecarboxylic acid → HCID 20299620, compound

Participants

Reaction Steps

3-Chloro-2-(2-propyn-1-ylamino)pyrazine-5-carboxylic acid is dissolved in 100 ml trifluoroacetic acid containing 1 g of mercuric oxide and the mixture is heated 4 hours on the steam bath and concentrated under vacuum. The residue is dissolved in aqueous sodium bicarbonate and 8-chloro-3-methylimidazo[1,2-a]pyrazine-6-carboxylic acid precipitated with acetic acid by adjusting the pH to approximately 7.

Provenance & Evidence