Methoxy-Substituted Tyramine Derivatives Synthesis, Computational Studies and Tyrosinase Inhibitory Kinetics
作者:Yasir Nazir、Hummera Rafique、Naghmana Kausar、Qamar Abbas、Zaman Ashraf、Pornchai Rachtanapun、Kittisak Jantanasakulwong、Warintorn Ruksiriwanich
DOI:10.3390/molecules26092477
日期:——
positive control kojic acid showed 72.9% inhibition. Enzyme kinetics reflected a mixed type of inhibition for inhibitor Ph9 (Ki 0.093 nM) and non-competitive inhibition for Ph6 (Ki 2.3 nM) revealed from Lineweaver–Burk plots. In silico docking studies with mushroom tyrosinase (PDB ID:2Y9X) predicted possible binding modes in the catalytic site for these active compounds. Ph9 displayed no PAINS (pan-assay
靶向酪氨酸酶治疗黑色素生成疾病是一项既定策略。羟基取代的苯甲酸和肉桂酸支架被掺入新的化学型中,以表现出 对蘑菇和人酪氨酸酶的体外抑制作用,以鉴定抗黑色素生成成分。 最具活性的化合物2-((4-甲氧基苯乙基)氨基)-2-氧乙基(E)-3-(2,4-二羟基苯基)丙烯酸酯(Ph9)抑制蘑菇酪氨酸酶,IC 50为0.059 nM,而2- ((4-甲氧基苯乙基)氨基)-2-氧乙基肉桂酸酯(Ph6)与阳性对照曲酸IC 50相比, IC 50为2.1 nM16700 nM。A375人黑素瘤细胞中人酪氨酸酶抑制活性的结果表明,化合物(Ph9)和Ph6分别显示94.6%和92.2%抑制活性,而阳性对照曲酸显示72.9%抑制。从Lineweaver-Burk图可知,酶动力学反映了对抑制剂Ph9的抑制作用混合型(Ki 0.093 nM)和对Ph6的非竞争性抑制作用(Ki 2.3 nM)。在与蘑菇酪氨酸酶(PDB