Synthesis of N-hydroxycinnamoyl amide derivatives and evaluation of their anti-oxidative and anti-tyrosinase activities
作者:Dong Wang、Jun Zhu、Jin-Rong Xu、Dan-Dan Ji
DOI:10.1016/j.bmc.2019.05.031
日期:2019.10
scavenging activities of CAES were evaluated. The anti-tyrosinase activities of N-feruloyl amino acid ethyl esters and the hydroxyl (OH) free radical scavenging activities of N-caffeoyl amino acid ethyl esters were also examined. DPPH free radical scavenging activity was shown in all CAES, of which N-caffeoyl amino acid ethyl esters demonstrated higher radical scavenging activity than N-feruloyl amide derivatives
以1-氨基酸乙酯盐酸盐和相应的肉桂酸(阿魏酸,乙酰基阿魏酸和咖啡酸)为原料,在催化量为1-的条件下,合成了十二种N-羟基肉桂酰基氨基酸酰胺乙酯(CAES)。 (3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐(EDC)和1-羟基苯并三烯(HOBt)。评价了CAES的1,1-二苯基-2-吡啶并肼基(DPPH)清除自由基的活性。的抗酪氨酸酶活Ñ -feruloyl氨基酸乙酯和羟基(OH )的自由基清除活性N-还检验咖啡酰氨基酸乙酯。在所有CAES中均显示了DPPH清除自由基的活性,其中N-咖啡酰氨基酸乙酯比N-阿魏酰酰胺衍生物具有更高的自由基清除活性,并且(E)-N-(咖啡酸)-1-甘氨酸乙酯(c 5)具有最强的清除自由基的能力。 IC 50值为18.6 µM。在测试的酰胺中,乙酰基阿魏酸氨基酸酯显示出最高的酪氨酸酶抑制活性。