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The synthesis of derivatives of new tetracyclic heterocyclic systems pyrazolo‐bis‐azolopyridazines
Author(s) -
Merslavič Marjo,
Stanovnik Branko,
Tišler Miha
Publication year - 1989
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570260312
Subject(s) - pyridazine , chemistry , tautomer , stereochemistry , d 1 , medicinal chemistry , receptor , biochemistry
The synthesis of new tetracyclic systems and new stable tautomers of known systems 11 H ‐ 13 and 10 H ‐imidazo[1, 2‐ b ]pyrazolo[4, 3‐ d ]‐ s ‐triazolo[3, 4‐ f ]pyridazine 16 , 9 H ‐pyrazolo[3, 4‐ d ]bis‐ s ‐triazolo[4, 3‐6:5′,1‐ f ]‐pyridazine 15 , 10 H ‐pyrazolo[3, 4‐ d ]bis‐ s ‐triazolo[4, 3‐ b :3′,4′‐ f ]pyridazine 17 , and 10 H ‐pyrazolo[4, 3‐ d )bis‐ s ‐triazolo[4, 3‐6:5′,1′‐ f ]pvridazine 18 is described.

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