Studies in the field of pyridazine compounds. Part 21. Structural studies on 6-H-pyrimido[1,2-b]-1,2,4-triazolopyridazines

The structure of 7,8-dihydro-6H-pyrimido [1,2-b]-1,2,4-triazolo [3,4-f] pyridazine (2a) was confirmed by 1H and 13C NMR spectroscopy and by preparation of the isomeric [5,1-f] pyridazine 3. Some derivatives of 6H-pyrimido [1,2-b]-1,2,4,-triazolo [3,4-f]pyridazine were prepared. Compounds 2a, 2b and...

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Bibliographic Details
Published inPharmazie Vol. 42; no. 5; p. 304
Main Authors Kosary, J, Polos, K, Kasztreiner, E
Format Journal Article
LanguageEnglish
Published Germany 01.05.1987
Subjects
Animals
Cardiotonic Agents - chemical synthesis
Chemical Phenomena
Chemistry, Physical
Magnetic Resonance Spectroscopy
Pyridazines - chemical synthesis
Pyrimidinones - chemical synthesis
Triazoles - chemical synthesis
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Summary:The structure of 7,8-dihydro-6H-pyrimido [1,2-b]-1,2,4-triazolo [3,4-f] pyridazine (2a) was confirmed by 1H and 13C NMR spectroscopy and by preparation of the isomeric [5,1-f] pyridazine 3. Some derivatives of 6H-pyrimido [1,2-b]-1,2,4,-triazolo [3,4-f]pyridazine were prepared. Compounds 2a, 2b and 9a showed a positive inotropic effect.
ISSN:0031-7144