Synthesis and antimicrobial evaluation of some annelated phthalazine derivatives and acyclo C-nucleosides from 1-chloro-4-(2,4,6-trimethylphenyl) phthalazine precursor
作者:Maher Abdel Aziz El-Hashash、Ahmed Youssef Soliman、Ibrahim Essam ELSHAMY
DOI:10.3906/kim-1111-52
日期:——
A highly efficient and versatile synthetic approach to the synthesis of annelated phthalazine derivatives viz. 1,2,4-triazolo [3,4-a]phthalazine 11a,b, 14, 18, 19a,b, 29-31, 33, 1,2,4-triazino [3,4-a]phthalazine 25a,b-28, 1,3,5-triazino[4,3-a]phthalazine 22, tetrazolo[5,1-a] phthalazine 23, imidazophthalazine 9a,b,15, and pyrimidinophthlazine 6, 10, 16, 17, 20 is presented. Moreover, acyclo C-nucleoside and double headed acyclo C-nucleoside of 1,2,4-triazolo[3,4-a]phthalazine 12, 13 were obtained via heterocyclization reaction of 1-chloro-4-(2,4,6-trimethylphenyl) phthalazine (4) with gluconic acid hydrazide and galactaric acid bis hydrazide, respectively. The new compounds were synthesized with the objective of studying their antimicrobial activity.
本文介绍了一种高效且通用的合成方法,用于制备多环并联吡嗪衍生物,包括1,2,4-三唑并[3,4-a]吡嗪11a,b,14,18,19a,b,29-31,33,1,2,4-三嗪并[3,4-a]吡嗪25a,b-28,1,3,5-三嗪并[4,3-a]吡嗪22,四唑并[5,1-a]吡嗪23,咪唑吡嗪9a,b,15,以及嘧啶吡嗪6,10,16,17,20。此外,通过1-氯-4-(2,4,6-三甲基苯基)吡嗪(4)与葡萄糖酸酰肼和半乳糖二酸双酰肼的杂环化反应,分别合成了1,2,4-三唑并[3,4-a]吡嗪的无环C核苷12,13及其双头无环C核苷。这些新化合物合成的目的是研究其抗菌活性。