Modified coumarins. 27. Ssynthesis and antioxidant activity of 3-substituted 5,7-dihydroxy-4-methylcoumarins
作者:M. M. Garazd、O. V. Muzychka、A. I. Vovk、I. V. Nagorichna、A. S. Ogorodniichuk
DOI:10.1007/s10600-007-0055-8
日期:2007.1
Amides of 5,7-dihydroxy-4-methylcoumaryl-3-ylacetic acid were synthesized by the activated ester method using N-hydroxysuccinimide and diisopropylcarbodiimide or by reaction with N,N-carbonylimidazole. The reactivity of 3-substituted 5,7-dihydroxy-4-methylcoumarins toward 2,2-diphenyl-1-picrylhydrazyl and superoxide radical was analyzed. The effect of the synthesized compounds on xanthineoxidase activity was studied.
通过活化酯法,使用 N-羟基琥珀酰亚胺和二异丙基碳二亚胺或与 N,N-羰基咪唑反应,合成了 5,7-二羟基-4-甲基香豆素-3-基乙酸的酰胺。分析了 3-取代的 5,7-二羟基-4-甲基香豆素对 2,2-二苯基-1-苦基肼和超氧自由基的反应性。研究了合成化合物对黄嘌呤氧化酶活性的影响。