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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 78588Generated: October 25, 2026

Hydrochloric Acid → 3-Amino-6-[4-(dimethylcarbamoyl)phenyl]pyrazine-2-carboxylic acid

https://huagongshe.com/reaction/78588

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantMethyl 3-amino-6-(4-(dimethylcarbamoyl)phenyl)pyrazine-2-carboxylateHCID 59471801—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product3-Amino-6-[4-(dimethylcarbamoyl)phenyl]pyrazine-2-carboxylic acidHCID 5947175091%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of methyl 3-amino-6-[4-(dimethylcarbamoyl)phenyl]pyrazine-2-carboxylate (390 mg, 1.299 mmol) in MeOH (2.127 mL) was added a solution of NaOH (649.5 μL of 2 M, 1.299 mmol) in H2O (2.127 mL). The resulting solution was heated to 60° C. for 2 hours and then allowed to cool and neutralised with HCl. The resultant precipitate was collected and washed with ether and dried (340 mg, 91% Yield). MS (ES+) 287.08

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841308B2
Source datasetuspto-grants-2014_09
ORD IDord-e2ee96ed075542019c82cf06bf850733
Source noteuspto-grants-2014_09