Prochelators triggered by hydrogen peroxide provide hexadentate iron coordination to impede oxidative stress
作者:Marina G.D. Leed、Natalie Wolkow、David M. Pham、Catherine L. Daniel、Joshua L. Dunaief、Katherine J. Franz
DOI:10.1016/j.jinorgbio.2011.05.023
日期:2011.9
)-2-aminoethyl]amine), and TB (tris[(2-boronic acid-benzyl)2-aminoethyl]amine) convert to TRENSIM (tris[(salicylideneamino)ethyl]amine), TRENSAM (tris[(2-hydroxybenzoyl)-2-aminoethyl]amine), and TS (tris[2-hydroxybenzyl)2-aminoethyl]amine), respectively. The prochelators were characterized by 11B NMR, and the structures of TRENBSAM, TRENBSIM, and the Fe(III) complex of TS were determined by X-ray crystallography
前螯合剂是在金属离子发生化学转化之前对它们几乎没有亲和力的试剂。提出了三种新的芳基硼酸酯前螯合剂,它们对过氧化氢有反应,以提供用于螯合金属离子的六齿配体。TRENBSIM (tris[(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzylidene)-2-aminoethyl]amine), TRENBSAM (tris[(2-(4, 4,5,5-四甲基-1,3,2-二氧硼烷-2-基)苯甲酰基)-2-氨基乙基]胺)和TB(三[(2-硼酸-苄基)2-氨基乙基]胺)转化TRENSIM(三[(水杨基氨基)乙基]胺)、TRENSAM(三[(2-羟基苯甲酰基)-2-氨基乙基]胺)和TS(三[2-羟基苄基)2-氨基乙基]胺),分别。prochelators 的特点是11B NMR,TRENBSAM、TRENBSIM 和 TS 的 Fe(III) 配合物的结构由