Monatshefte fur Chemie p. 615 - 624 (1983)
Update date:2022-08-29
Topics:
Petric, Andrej
Tisler, M.
Stanovnik, Branko
Syntheses of isomeric azolopyridopyrimidines are described.As starting material the corresponding pyridopyrimidines were used.It could be established that in many cases a transformation of a functional group with the purpose to form an annelated five-membered ring proceeded with ring opening at the pyrimidine part.Subsequent ring closure with one carbon synthons gave then the desired tricyclic heterocycles. - Keywords: Cyclization with C-N and N-N bond formation; Tricyclic heterocyclic compounds
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