139617-70-2

Upstream product

• 139617-87-1 5-Cyano-6-(2,4-dimethyl-phenylamino)-2-methyl-nicotinic acid ethyl ester 
• 98-88-4 benzoyl chloride 
• 139617-66-6 6-[Benzoyl-(2,4-dimethyl-phenyl)-amino]-5-cyano-2-methyl-nicotinic acid ethyl ester 

Downstream Products

• 139617-86-0 1-(2,4-xylyl)-7-methyl-4-oxo-2-phenyl-1,4-dihydropyrido<2,3-d>pyrimidine-6-carbanilide 
• 139617-77-9 1-(2,4-Dimethyl-phenyl)-7-methyl-4-oxo-2-phenyl-1,4-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid hydroxyamide 
• 139617-74-6 1-(2,4-Dimethyl-phenyl)-7-methyl-4-oxo-2-phenyl-1,4-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid 

Relevant academic research and scientific papers

SYNTHESIS AND PROPERTIES OF 2-SUBSTITUTED 1-ARYL-7-METHYL-4-OXO-1,4-DIHYDROPYRIDOPYRIMIDINE-6-CARBOXYLIC ACIDS AND THEIR DERIVATIVES

Under the influence of hydrogen chloride 2-(N-acylarylamino)-6-methyl-5-ethoxycarbonylnicotinoitriles undergo cyclization to 2-substituted 1-aryl-7-methyl-4-oxo-6-ethoxycarbonyl-1,4-dihydropyridopyrimidines, which are converted by the action of alk