63274-53-3

Upstream product

• 52535-68-9 2-benzoylamino-4,5-dimethyl-thiophene-3-carboxylic acid ethyl ester 
• 52535-72-5 2-benzoylamino-4,5-dimethyl-thiophene-3-carboxylic acid 
• 63274-60-2 5,6-dimethyl-2-phenyl-4H-thieno[2,3-d][1,3]oxazin-4-one 

Downstream Products

• 119260-81-0 8,9-Dimethyl-5-phenyl-2,3-dihydro-imidazo<1,2-c>thieno<3,2-e>pyrimidinhydrochlorid 
• 119260-82-1 9,10-Dimethyl-6-phenyl-3,4-dihydro-2H-pyrimido<1,2-c>thieno<3,2-e>pyrimidinhydrochlorid 
• 105544-17-0 3,5,6-Trimethyl-2-phenyl-3H-thieno[2,3-d]pyrimidine-4-thione 

Relevant academic research and scientific papers

Various synthetic routes to imidazothienopyrimidines and pyrimidothienopyrimidines in some cases annelated

The tricyclic or tetracyclic imidazothienopyrimidines and pyrimidothienopyrimidines were synthesized by three routes: Route A: Thieno1,3-thiazin-4-thiones E undergo the ring transformation with α,ω-diamino-alkanes to giv