Synthesis, characterization and biological activity of some 1,2,4-triazine derivatives
作者:A. A. El-Barbary、M. A. Sakran、A. M. El-Madani、Claus Nielsen
DOI:10.1002/jhet.5570420528
日期:2005.7
4-Amino-6-methyl-3-(2H)-thioxo-5-(4H)-oxo-1,2,4-triazine (1) was condensed with 2-methyl (or phenyl)-4H-3,1-benzoxazin-4-one (5a,b) in boiling acetic acid to give compounds 8-11. Reacting 1 with chloroacetyl chloride afforded the corresponding chloroacetamido and triazinothiadiazine derivatives 12 and 13. Condensing 2 with succinic anhydride and/or phthalic anhydride yielded compounds 14 and 15. Benzoylation
4-氨基-6-甲基-3-(2- ħ)-thioxo -5-(4- ħ) -氧代-1,2,4-三嗪(1)中的溶液用2-甲基(或苯基)-4-冷凝ħ -在沸腾的乙酸中的3,1-苯并恶嗪-4-酮(5a,b)得到化合物8-11。将1与氯乙酰氯反应,得到相应的氯乙酰胺基和三叠氮杂二嗪衍生物12和13。冷凝2与琥珀酸酐和/或邻苯二甲酸酐,得到化合物14和15。4-氨基-6-甲基-3-(2 H)-thioxo-5-(4 H)-oxo -2-(2,3,4,5- tetra- O的苯甲酰化-乙酰基-α-D-吡喃-葡萄糖基)-1,2,4-三嗪(19)得到相应的4- N,N-二苯甲酰基衍生物20。所述的去块Ñ -2糖苷21和小号糖苷22由甲醇氨,得到化合物23和24。4-氨基糖苷25a的乙酰化得到相应的4-单-和4-二乙酰基衍生物26和27。25a,b的脱氨基得到化合物28a,b。化合物28b的甲基化得到相应的N4-和S-甲基衍生物29和30。