403796-42-9

Upstream product

• 122-51-0 orthoformic acid triethyl ester 
• 155579-28-5 5-amino-1-(4'-methoxyphenyl)-4-(cyanoformimidoyl)imidazole 

Downstream Products

• 936574-08-2 4-imino-N⁸-(4-methoxyphenyl)pyrimido[5,4-d]pyrimidine-3,8(4H)-diamine 
• 936574-15-1 N-(4-methoxyphenyl)pyrimido[5,4-d]pyrimidine-4,8-diamine 
• 1187086-07-2 N-(4-methoxyphenyl)-N'-methylpyrimido[5,4-d]pyrimidine-,8-diamine 
• 1234199-96-2 N-(4-imino-8-(4-methoxyphenylamino)pyrimido[5,4-d]pyrimidin-3(4H)-yl)furan-2-carboxamide 
• 1234199-94-0 N-(4-imino-8-(4-methoxyphenylamino)pyrimido[5,4-d]pyrimidin-3(4H)-yl) isonicotinamide 
• 1234199-95-1 N-(4-imino-8-(4-methoxyphenylamino)pyrimido[5,4-d]pyrimidin-3(4H)-yl) benzamide 
• 1234199-97-3 N-[4-imino-8-[(4-methoxyphenyl)amino]pyrimido[5,4-d]pyrimidin-3(4H)-yl]acetamide 
• 1451060-60-8 (9-(4-methoxyphenyl)-9H-purin-6-yl)(piperidin-1-yl)methanimine 
• 1451060-62-0 9-(4-methoxyphenyl)-6-(piperidin-1-yl)-9H-purine 
• 1451060-58-4 N₆,N₆-dimethyl-9-(4-methoxyphenyl)-9H-6-purinecarboximidamide 
• 1196086-72-2 7-(benzyloxy)-8-imino-N-(4-methoxyphenyl)-7,8-dihydropyrimido[5,4-d]pyrimidin-4-amine 
• 705956-58-7 9-(4'-methoxyphenyl)-6-(methoxyformimidoyl)purine 

Relevant academic research and scientific papers

Facile synthesis of 6-cyano-9-substituted-9H-purines and their ring expansion to 8-(arylamino)-4-imino-3-methylpyrimidino-[5,4-d]pyrimidines

6-Cyano-9-substituted-9H-purines were prepared in a high yielding, one-step process by refluxing triethyl orthoformate or triethyl orthopropionate with the corresponding (Z)-N1-(aryl- or benzyl)-N2-(2-amino-1,2-dicyanovinyl)formamidi