The claimed subject matter provides a system andor a method that facilitates providing communication channels within a radio frequency identification infrastructure. The process of the invention provides the compound of formula in high yield and substantially free of the corresponding diastereomers. The multipath canceler of this invention takes as input the direct path signal plus multipath noise. Thereafter, an originating dual-tone multi-frequency trigger is detected. Water-pouring analysis is used to more optimally allocate the total available transmit power to the eigen-modes, which then determines the data rate and the coding and modulation scheme to be used for each eigen-mode. After this, the thin copper film is held at a temperature of not less than 200\xb0 C.