110858-68-9Relevant articles and documents
Synthesis of new tricyclic ring systems containing the pyrimido[5,4-b][1,4]oxazine skeleton
Matyus,Szalay,Kasztreiner,Jerkovich,Rabloczky
, p. 739 - 740 (1989)
Synthesis of derivatives 4 and 6 of two novel tricyclic ring systems, 1,2,4-triazolo[3,4-c]pyrimido[5,4-b][1,4]oxazine and imidazo[1,2-c]pyrimido[5,4-b][1,4]oxazine, respectively is described. Although the parent pyrimido[5,4-b]oxazines possess positive i
Pyrimido[5,4-B][1,4]oxazine derivatives and pharmaceutical compositions containing them
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, (2008/06/13)
The invention relates to novel pyrimido [5,4-b][1,4]oxazine derivatives of the formula (I), and the acid addition salts thereof, pharmaceutical compositions containing them and a process for their preparation. In the formula (I) STR1 wherein R1