130475-33-1

Upstream product

• 110164-37-9 ethyl 4-<3-<2-<4-(2-methoxyphenyl)piperazin-1-yl>ethyl>-2,4-dioxothieno<3,4-d>pyrimidin-1-yl>-butanoate 
• 130475-83-1 4-(3-{2-[4-(2-Methoxy-phenyl)-piperazin-1-yl]-ethyl}-2,4-dioxo-3,4-dihydro-2H-thieno[3,4-d]pyrimidin-1-yl)-butyric acid 
• 110164-06-2 3-<2-<4-(2-methoxyphenyl)piperazin-1-yl>ethyl>thieno<3,4-d>pyrimidine-2,4-dione 
• 118252-16-7 ethyl (4-methoxycarbonyl)thiophene-3-carbamate 
• 39978-14-8 methyl 3-amino-4-thiophenecarboxylate hydrochloride 
• 593-56-6 N-methoxylamine hydrochloride 
• 130475-22-8 4-{2-[4-(2-Methoxy-phenyl)-piperazin-1-yl]-ethyl}-7,8-dihydro-6H-1-thia-4,5a-diaza-benzo[cd]azulene-3,5,9-trione 

Relevant academic research and scientific papers

Thiophene Systems. 11. The Synthesis of Novel Thieno Tricyclic Ring Systems

The synthesis of thieno tricyclic compounds is described.The N-1 alkylation of I produced the alkanoic ester precursors.After hydrolysis, the corresponding carboxylic acids were cyclized to the title compounds II.This cyclization step was accomp