Structural modifications modulate stability of glutathione-activated arylated diazeniumdiolate prodrugs
作者:Rahul S. Nandurdikar、Anna E. Maciag、Ryan J. Holland、Zhao Cao、Paul J. Shami、Lucy M. Anderson、Larry K. Keefer、Joseph E. Saavedra
DOI:10.1016/j.bmc.2012.02.045
日期:2012.5
JS-K, a diazeniumdiolate-based nitric oxide (NO)-releasing prodrug, is currently in late pre-clinical development as an anti-cancer drug candidate. This prodrug was designed to be activated by glutathione (GSH) to release NO. To increase the potency of JS-K, we are investigating the effect of slowing the reaction of the prodrugs with GSH. Herein, we report the effect of replacement of nitro group(s) by other electron-withdrawing group(s) in JS-K and its homo-piperazine analogues on GSH activation and the drugs' biological activity. We show that nitro-to-cyano substitution increases the half-life of the prodrug in the presence of GSH without compromising the compound's in vivo anti-tumor activity. (C) 2012 Elsevier Ltd. All rights reserved.