Glycosylation, Sugar Hydrazones, and Antimicrobial Evaluation of Some 6-Substituted-1,2,4-Triazines
作者:A. A. El-Barbary、Y. A. Hafiz、M. S. Abdel-Wahed
DOI:10.1080/15257770903454482
日期:2010.1
Hydrazinolysis of 4-amino-6-[2-(4-methoxyphenyl)vinyl]-3-thioxo-3,4-dihydro-2H-[1,2,4] triazin-5-one (1) gave the corresponding hydrazino derivatives (2) Cyclocondensation of (2) with carbon disulfide furnished 8-amino-6-[2-(4-methoxyphenyl)vinyl]-3-thioxo-2,8-dihydro-3H-[1,2,4]triazolo[4,3-b][1,2,4]triazin-7-one (3) which was treated with 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl bromide (4) in pyridine to give the corresponding N-glucosyl derivative 5, which deblocked to give 8. Compound 2 was reacted with isatin 9 and/or isatoic anhydride 10 to afford 11 and 12. Treatment of 11 and 12 with (4) in pyridine gave the corresponding mono glucosyl derivatives 13 and 14, which were deblocked by ammonia and afforded 15 and 16. Condensation of 2 with aldoses afforded the corresponding cyclic products 17a-f and with D-fructose furnished 18. Acetylation of 17b, d afforded the corresponding polyacetyl derivatives 19b,d. Compound 2 condensed with some aromatic aldehydes in boiling methanol and gave 20a-f. The newly synthesized compounds were tested as antimicrobial agents.
Synthesis of Some New 2-α-<scp>L</scp>-Arabinopyranosyl-1,2,4-triazines as Potential Antitumor Chemotherapeutics
作者:Abdel Kader Mansour、Mohga M. Eid、Nasser S. A. M. Khalil
DOI:10.1081/ncn-120023274
日期:2003.10
Synthetic routes towards different 2-alpha-L-arabinopyranosyl-3-thioxo-2,3-dihydro-1,2,4-triazin-5(4H)-/ones or thiones were investigated. Primary human anticancer screening of two selected compounds resulted in an active compound against SF-268 (CNS) cell line.
Eid, M. M.; Badawy, M. A.; Ghazala, M. A. H., Journal of Heterocyclic Chemistry, 1983, vol. 20, p. 1709 - 1711
作者:Eid, M. M.、Badawy, M. A.、Ghazala, M. A. H.、Ibrahim, Yehia A.