853896-72-7Relevant academic research and scientific papers
A novel synthetic routes to new 3-substituted-4-oxo-3,4,5,6,7,8- hexahydropyridol[4′,3′,4,5]-thieno[2,3-d]pyrimidine-7-carboxylic acid ethyl ester derivatives
Ahmed,Abdel-latif,Ameen
, p. 95 - 107 (2007/10/03)
Orthoaminoester 1 was investigated by the reaction with ethylchloroformate, 5-phenyl-oxadiazol-2-thione and triethylorthoformate to afford the open structures, 2, 13 and 15. These compounds were subjected to ensuing cyclization in one step or more yielding 3-substituted-5,6-dihydro-8H-4-oxopyrido[4′, 3′,4,5]thieno[2,3-d]pyrimidine-7(6H)-carboxylic acid ethyl ester derivatives. Copyright Taylor & Francis Inc.
