[Problem] To provide: a novel method for producing a pyrazine carboxamide compound as a production material of pharmaceutical products, etc.； and a synthetic intermediate that is useful in said production method. [Solution] As a result of diligent research on production methods in industrially producing a pyrazine carboxamide compound, the inventors have found that, by using a predetermined material and synthetic intermediate, a pyrazine carboxamide compound can be produced according to a method that is suitable for industrial production as a pharmaceutical product, does not require purification by silica gel column chromatography, and in which overall yield is greatly improved, thus accomplishing the present invention.
