An Esterase‐Sensitive Prodrug Approach for Controllable Delivery of Persulfide Species
2017
A new strategy to deliver a well-defined persulfide species in a biological medium is described herein. Under near physiological conditions, the persulfide prodrug can be activated by an esterase to generate a "hydroxyl methyl persulfide" intermediate, which rapidly collapses to form a defined persulfide. Such persulfide prodrugs can be used either as chemical tools to study persulfide chemistry and biology or for future development as H2S-based therapeutic reagents. Using the persulfide prodrugs developed in this study, the reactivity between S-methyl methanethiosulfonate (MMTS) with persulfide was unambiguously demonstrated. In addition, a representative prodrug exhibited potent cardioprotective effects in a murine model of myocardial ischemia-reperfusion (MI/R) injury with a bell shape therapeutic profile.
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