SUGASAWA, S Synthesis of pyridopyrazolone derivatives. I. Synthesis of pyrido[3, 4-c]pyrazolones. [electronic resource] - Pharmaceutical bulletin Oct 1956 - 360-3 p. digital Publication Type: Journal Article ISSN: 0369-9471 Standard No.: 10.1248/cpb1953.4.360 doi Subjects--Topical Terms: AnalgesicsAzolesPyrazolones