93247-46-2

Upstream product

• 64-17-5 ethanol 
• 93247-42-8 8-benzyl-1,7-dimethyl-2-thioxo-1,2,3,7-tetrahydro-purin-6-one 
• 10606-73-2 ethyl 2-chloro-2-phenylacetate 
• 93247-68-8 2-benzyl-3-methyl-5-(N'-methyl-thioureido)-3H-imidazole-4-carboxylic acid ethyl ester 
• 93247-66-6 2-benzyl-5-(N'-methyl-thioureido)-1⁽³⁾H-imidazole-4-carboxylic acid ethyl ester 
• 93269-72-8 8-Benzyl-1-methyl-2-thioxo-1,2,3,9-tetrahydro-purin-6-one 
• 93269-69-3 (8-Benzyl-1-methyl-6-oxo-6,9-dihydro-1H-purin-2-ylsulfanyl)-phenyl-acetic acid 
• 93269-67-1 2-Benzyl-5a-ethoxy-5-methyl-7-phenyl-5,5a-dihydro-1H-thiazolo[2,3-b]purine-4,8-dione 

Downstream Products

• 93247-51-9 (8-Benzyl-1,7-dimethyl-6-oxo-6,7-dihydro-1H-purin-2-ylsulfanyl)-phenyl-acetic acid 

Relevant academic research and scientific papers

Studies on Ring-fused Mesoionic Thiazolo(3,2-a)imidazolo(4,5-d)pyrimidine Derivatives

Cyclodehydration of 2-carboxymethylthio derivatives of imidazolo(4,5-d)pyrimidones (VI and XII) with pyridine-acetic anhydride has been studied.While VIa, b give N-7-acylated mesoionic systems (VIIIa, b), VIc yields a non-acylated compound (VIIIb) which has also been obtained through an alternative route.In contrast, isolation of mesoionic compound from VId is not successful and propable reasons for this failure are discussed.Structures assigned to mesoionic compounds and their precursors are confirmed by relevant spectral data (UV, IR and MS).