title: Synthesis and biological properties of novel triazolopyrimido-pyrimidine-5,8-diones.
abstract: The synthesis of novel 1,2,4 triazolo[2,3,4-c,d]pyrimido[4,5-d]pyrimidine derivatives has been described from N-substituted amides of 1,2,3,4-tetrahydro-6-methyl-2-oxo-4-thio-5-pyrimidinecarboxylic acid 1. Amides 1 treated with 80% hydrazine hydrate, followed by aqueous-ethanolic formaldehyde form substituted triazolo[4,3-c]pyrimidines which cyclize in pyridine to triazolopyrimidopyrimidine derivatives 4. Attention has been paid to the synthesis of the 4-arylidenehydrazinopyrimidines 3. Some compounds have been tested for antibacterial and anticancer activities and for action on CNS.
authors.forename: A
authors.initials: A
authors.lastname: Dlugosz
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis / Q000494:pharmacology; D000818:Animals; D014151:Anti-Anxiety Agents / Q000138:chemical synthesis / Q000494:pharmacology; D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000494:pharmacology; D001831:Body Temperature / Q000187:drug effects; D011743:Pyrimidines / Q000138:chemical synthesis* / Q000494:pharmacology; D014230:Triazoles / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000700:Analgesics; D014151:Anti-Anxiety Agents; D000970:Antineoplastic Agents; D011743:Pyrimidines; D014230:Triazoles