55503-22-5

Upstream product

• 106-94-5 propyl bromide 
• 55503-13-4 2-methyl-4-oxo-4,7-dihydro-thieno[2,3-b]pyridine-5-carboxylic acid 
• 55502-88-0 diethyl N-(5-methyl-2-thienyl)aminomethylenemalonate 
• 55503-12-3 2-methyl-4-oxo-4,7-dihydro-thieno[2,3-b]pyridine-5-carboxylic acid ethyl ester 

Relevant academic research and scientific papers

Thienopyridine-carboxylic acid derivatives

Novel thienopyridine-carboxylic acid derivatives, which are shown by the general formula SPC1 Wherein R1 represents hydrogen or a lower alkyl; R2 represents hydrogen, a lower alkyl or a halogen; or R1 and R2, taken together, may represent an alkylene to form a 5- or 6-membered ring with or without alkyl substituents; each of R4 and R5 represents hydrogen or a lower alkyl; and their pharmaceutically acceptable salts obtainable when R4 is hydrogen, which are useful medicines such as chemotherapeutic agents of bacterial infections.