76575-34-3

Upstream product

• 5326-23-8 6-Chloro-3-pyridinecarboxylic acid 
• 61325-02-8 2-amino-5-phenylthiophene-3-carboxylic acid methyl ester 
• 4815-34-3 ethyl 2-amino-5-phenylthiophene-3-carboxylate 

Downstream Products

• 76575-42-3 4-oxo-2-phenyl-N-1H-tetrazol-5-yl-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidine-7-carboxamide 

Relevant academic research and scientific papers

Synthesis and Antiallergy Activity of 4-Oxo-4H-pyridothienopyrimidines

A series of 4-oxo-4H-pyridothienopyrimidines with substitutions in the 2, 3, and 7 positions was prepared.The compounds were evaluated in the rat positive cutaneous anaphylaxis test for antiallergy activity.Several compounds had potent oral

Oxo-pyrido[1,2-a]thienopyrimidine compounds and methods for their production

Oxo-pyrido[1,2-a]thienopyrimidine compounds, salts thereof, methods of production, intermediates in their production, pharmaceutical compositions containing said compounds and methods for treating allergies using said compositions are disclosed.