111680-69-4

Upstream product

• 53341-66-5 ethyl 3-oxo-3-(phenylamino)propionate 
• 504-29-0 2-aminopyridine 

Downstream Products

• 5418-94-0 2-chloro-4H-pyrido[1,2-a]pyrimidin-4-one 
• 111680-80-9 4-(phenylimino)-4H-pyrido<1,2-a>pyrimidin-2-ol 
• 111692-71-8 2-(phenylamino)-4H-pyrido<1,2-a>pyrimidin-4-one 
• 111680-66-1 2-<(N-methyl,N-phenyl)amino>-4H-pyrido<1,2-a>pyrimidin-4-one 
• 111680-78-5 2-(phenylamino)-4-oxo-4H-pyrido<1,2-a>pyrimidine-3-carbaldehyde 

Relevant academic research and scientific papers

1,2-Fused Pyrimidines. III. Derivatives of 12H-Pyridopyrimidoquinoline, A Novel Heterocyclic System

Reactivities of 2-amino-4H-pyridopyrimidin-4-ones and 4-amino-2H-pyridopyrimidin-2-ones, both N,N-dialkyl and (N-alkyl,N-phenyl)substituted, when treated with the N,N-dimethylformamide/phosphorus oxychloride Vilsmeier-Haack reagent XII were