Organocatalyzed and mechanochemical solvent-free synthesis of novel and functionalized bis-biphenyl substituted thiazolidinones as potent tyrosinase inhibitors: SAR and molecular modeling studies
作者:Sadaf Mutahir、Muhammad Asim Khan、Islam Ullah Khan、Muhammad Yar、Muhammad Ashraf、Sidra Tariq、Ren-long Ye、Bao-jing Zhou
DOI:10.1016/j.ejmech.2017.04.021
日期:2017.7
Eluding the involvement of solvents in organic synthesis and introducing environment friendly procedures can control environmental problems. A facile and an efficient solvent free mechanochemical method (grinding) is achieved to synthesize novel bis-biphenyl substituted thiazolidinones using non-toxic and cheap N-acetyl glycine (NAG). Organocatalytic condensation of a series of Schiff's bases bearing
避免溶剂参与有机合成并引入环境友好的程序可以控制环境问题。实现了一种简便,有效的无溶剂机械化学方法(研磨),可使用无毒且廉价的N-乙酰基甘氨酸(NAG)合成新型的双联苯取代的噻唑烷酮。一系列带有不同取代基的席夫氏碱与巯基乙酸的有机催化缩合可产生各种噻唑烷酮衍生物,收率良好或极佳。对这些噻唑烷酮类似物的蘑菇酪氨酸酶的体外抑制研究表明,它们中的许多在低微摩尔浓度下都具有良好至优异的酪氨酸酶抑制作用。特别是,六种化合物表现出强大的抑制潜力,IC50值范围从0.61±0.31至21.61±0。与标准曲酸(IC50 6.04±0.11μM)相比为11μM。进一步的分子对接研究表明,噻唑烷酮部分通过很好地适合酶结合口袋,在抑制机制中起关键作用。