Pharmaceutical prodrugs and methods of their preparation and use

The disclosure provides compounds of Formula (I), wherein X, Y, and Z are defined herein. The disclosure also provides particles comprising one or more compounds described herein, compositions comprising one or more compounds or particles described herein and a pharmaceutically acceptable carrier, and methods of treating a subject in need thereof comprising administering one or more compounds, particles, or compositions described herein to the subject. X—Y—Z  (I).