724733-05-5

Upstream product

• 62-53-3 aniline 
• 258330-01-7 diethyl 2-isothiocyanato-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3,6-dicarboxylate 
• 312948-54-2 diethyl 2-({[(phenyl)amino]carbothioyl}amino)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3,6-dicarboxylate 

Downstream Products

• 926034-03-9 ethyl 2-(2-hydroxyethylamino)-4-oxo-3-phenyl-3,4,5,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7(6H)-carboxylate 
• 926034-02-8 ethyl 2-hydrazino-4-oxo-3-phenyl-3,4,5,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7(6H)-carboxylate 
• 926034-01-7 ethyl 4-oxo-3-phenyl-2-methylthio-3,4,5,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7(6H)-carboxylate 

Relevant academic research and scientific papers

Heterocyclization of orthoaminoester and orthoamino-nitrile-thieno[2,3-c] pyridine: The facile synthesis of fused pyridothienopyrimidines

A highly efficient and versatile synthetic approach to the synthesis of pyrido-[4′,3′:4,5]thieno[2,3-d]pyrimidines (4, 14, 15, 21) and their heterofused (e.g., triazolo-, triazino-, imidazo-, and tetrazolo-,) pyridothienopyrimidines (5-9, 16, 17, 22-24) i