Synthesis and characterization of a novel calcium-selective chelator
作者:Alison McCurdy、Amber M Kawaoka、Holly Thai、Sylvia C Yoon
DOI:10.1016/s0040-4039(01)01677-x
日期:2001.10
A calcium-selective photochromic chelator to study the effects of physiological [Ca2+] oscillations on proteins in vitro or in vivo has been designed. The novel 2,2'-spirobi[2H-1-benzopyran] derivative 1 has been synthesized and the ion complexation properties of 1 with Mg2+, Ca2+, and Sr2+ in aqueous buffered solution have been investigated. The chelator 1 shows modest selectivity for calcium ion (K-11 = 6720 M-1) over magnesium ion (K-11 = 564 M-1) by H-1 NMR titration. (C) 2001 Elsevier Science Ltd. All rights reserved.