143358-80-9Relevant academic research and scientific papers
Synthesis of 4-thioxo- and 2,3-dihydroimidazo[1,2-c]- and 3,4-dihydro-2H-pyrimidol[1,2-c]-anellated pyrido-[3',2':4,5]thieno[2,3-e]pyrimidines from pyridothieno-thiazinthione derivatives by cyclic transformations reaction
Leistner,Bohm,Vieweg,Wagner
, p. 333 - 335 (2007/10/02)
Pyridothienopyrimidinthiones 3a-3d, pyridothienoimidazo- and pyridothienopyrimidopyrimidines, 4a-4c, respectively, were prepared by the reaction of the pyridothienothiazinthinones 2a and 2b with primary amines, 1,2-diaminoethane and 1,3-diaminopropanes, respectively. The tetracyclic compounds 4a and 4c were also obtained by the reaction of the pyrimidines 3a and 3c, respectively, with the same diamines. 2a reacted with pyrrolidine to give the acetamidine derivative 5 with a pyrrolidinothiocarbonyl moiety.
