267665-48-5

Upstream product

• 64-17-5 ethanol 
• 163770-45-4 2-amino-7,7-dimethyl-7,8-dihydro-5H-pyrano<4,3-b>pyridine-3-carboxylic acid 
• 94-05-3 ethyl (ethoxymethylene)cyanoacetate 
• 93956-88-8 2,2-dimethyl-4-(N-morpholino)-2,3-dihydro-6H-pyran 
• 306740-23-8 ethyl 2-cyano-3-(2,2-dimethyl-4-morpholino-3,6-dihydro-2H-pyran-5-yl)acrylate 

Downstream Products

• 351005-21-5 3-(4-methoxy-phenyl)-7,7-dimethyl-2-thioxo-1,2,3,5,7,8-hexahydro-6-oxa-1,3,9-triaza-anthracen-4-one 
• 303051-70-9 3-benzyl-7,7-dimethyl-2-thioxo-1,2,3,5,7,8-hexahydro-6-oxa-1,3,9-triaza-anthracen-4-one 
• 374099-30-6 3-ethoxycarbonyl-2-[(N'-4-methoxyphenyl)thioureido]-7,7-dimethyl-7,8-dihydro-5H-pyrano[4,3-b]pyridine 
• 303965-56-2 2-(N'-benzylthioureido)-3-ethoxycarbonyl-7,7-dimethyl-7,8-dihydro-5H-pyrano[4,3-b]pyridine 
• 267665-49-6 8,8-dimethyl-4-oxo-3-phenyl-2-thioxo-2,3,4,6,8,9-hexahydro-1H-pyrano[3',4':5,6]pyrido[2,3-d]pyrimidine 

Relevant academic research and scientific papers

Derivatives of condensed pyridopyrimidines. 3. Synthesis of condensed imidazo[4,5-b]pyridine and also 4-oxo- and 2,4-dioxo-pyrido[2,3-d]pyrimidines

A convient methods has been developed for the synthesis of condensed imidazo[4,5-b]pyridine and also 4-oxo- and 2,4-dioxopyrido[2,3-d]pyrimidines. The optimum conditions for the Curtius rearrangement of 2-amino-3-azidocarbonyl derivative of pyrano[4,3-b]pyridine have been established.

Condensed pyridopyrimidines. 1. Synthesis of new derivatives of pyrano[3′,4′:5,6]pyrido[2,3-d]pyrimidines

New derivatives of pyrano[3′,4′:5,6]pyrido[2,3-d]pyrimidines were synthesized from ethyl 2-amino-7,7-dimethyl-7,8-dihydro-5H-pyrano[4,3-b]pyridine-3-carboxylate. 1999 KluwerAcademic/Plenum Publishers.