The present application provides for a compound of Formula IV,or a pharmaceutically acceptable salt, solvate, andor ester thereof, compositions containing such compounds, therapeutic methods that include the administration of such compounds, and therapeutic methods and include the administration of such compounds with at least one additional therapeutic agent. Via a call connection between the call management resource and the subscriber, the call management resource receives control input from the subscriber over the call connection. The resulting smooth and flat Ta capping layer promotes a smooth and flat surface in the MTJ layers which are subsequently formed on the surfactant layer.