Quaternary salts of pyrido(1,2- )pyrimidines.
D000478:Alkylation; D000641:Ammonia; D000900:Anti-Bacterial Agents; D003500:Cyclization; D004355:Drug Stability; D006863:Hydrogen-Ion Concentration; D011743:Pyrimidines; D012492:Salts; D013329:Structure-Activity Relationship
D000900:Anti-Bacterial Agents; D011743:Pyrimidines; D012492:Salts; D000641:Ammonia