Materials and methods for preparing –3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed. The method also includes transitioning, through the processor of the source device andor the processor of the target display, the target display from the standby mode of operation to an active mode of operation thereof based on a control signal from the processor of the source device andor the processor of the target display following the detection of the hot-plug event. The recipient may respond to the message by addressing the response to the enterprise or closed network number, and the response may be delivered to the originator’s mobile or other device associated with their subscription. Advantageously, the first waveguide holding member moves transversely relative to the second waveguide holding member.