1383841-29-9

Upstream product

• 90-04-0 2-methoxy-phenylamine 
• 122-51-0 orthoformic acid triethyl ester 
• 281656-91-5 ethyl 2‐amino‐6‐ethyl‐4,5,6,7‐tetrahydrothieno[2,3‐c]pyridine‐3‐carboxylate 

Downstream Products

• 1383841-25-5 dimethyl 1-ethyl-3'-(2-methoxyphenyl)-6'-methylidene-4'-oxo-3',4',5,6-tetrahydro-1H-spiro[pyridine-4,5'-thieno[2,3-d]pyrimidine]-2,3-dicarboxylate 
• 1415734-97-2 dimethyl 7-ethyl-3-(2-methoxyphenyl)-4-oxo-3,4,5,6,7,10-hexahydropyrimido[5',4':4,5]thieno[3,2-d]azocine-8,9-dicarboxylate 
• 1415735-24-8 dimethyl (2E)-2-(ethyl{2-[6-methoxymethyl-3-(2-methoxyphenyl)-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-5-yl]ethyl}amino)but-2-enedioate 
• 1415734-73-4 methyl 1-ethyl-3'-(2-methoxyphenyl)-6'-methylidene-4'-oxo-3',4',5,6-tetrahydro-1H-spiro[pyridine-4,5'-thieno[2,3-d]pyrimidine]-3-carboxylate 
• 1415735-00-0 methyl 7-ethyl-3-(2-methoxyphenyl)-4-oxo-3,4,5,6,7,10-hexahydropyrimido[5',4':4,5]thieno[3,2-d]azocine-9-carboxylate 
• 1415735-27-1 methyl (2E)-3-(ethyl{2-[6-methoxymethyl-3-(2-methoxyphenyl)-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-5-yl]ethyl}amino)acrylate 
• 1415734-75-6 3-acetyl-1-ethyl-3'-(2-methoxyphenyl)-6'-methylidene-5,6-dihydro-1H-spiro[pyridine-4,5'-thieno[2,3-d]pyrimidin]-4'(3'H)-one 
• 1415735-03-3 9-acetyl-7-ethyl-3-(2-methoxyphenyl)-5,6,7,10-tetrahydropyrimido[5',4':4,5]thieno[3,2-d]azocin-4(3H)-one 

Relevant academic research and scientific papers

Transformations of tetrahydropyrido[4′,3′:4,5]thieno[2,3-d] pyrimidin-4(3H)-ones in the presence of alkynes bearing electron-withdrawing substituents

Tetrahydropyrido[4′,3′:4,5]thieno[2,3-d]pyrimidines in the presence of activated alkynes were transformed into mixtures of pyrimido[5′,4′:4,5]thieno[3,2-d]azocines and spiro[pyridine-4, 5′-thieno[2,3-d]pyrimidines].