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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1821750Generated: November 1, 2026

5-Methylpyrazin-2-amine → HCID 67254666, compound

https://huagongshe.com/reaction/1821750

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Methylpyrazin-2-amineHCID 313215—
ReactantHCID 67254175HCID 67254175—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 67254666HCID 67254666—

Reaction Conditions

Temperature85 °C

Reaction Steps

To a stirred solution of 5-methoxy-4-(4-nitro-phenoxycarbonylamino)-2-trifluoromethyl-benzoic acid methyl ester (878 mg, 2.1 mmol) in 4.2 mL NMP at room temperature under nitrogen was added 2-amino-5-methylpyrazine (232 mg, 2.1 mmol) and the reaction heated to 85° C. After six hours the reaction was cooled to room temperature and a precipitate formed. The precipitate was triturated with EtOAc (25 mL) and the urea isolated by filtration as a tan solid (470 mg, 58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07608618B2
Source datasetuspto-grants-2009_10
ORD IDord-43caa7abed964b80bc320a9bb3a02343
Source noteuspto-grants-2009_10