A process for preparing perindopril is provided comprising condensing an N–1-carbethoxybutyl–alanyl halide of formula II:wherein X is a halide with an -2-carboxyperhydroindole of formula III:wherein R is hydrogen or a protecting group. In a horizontal electrical field liquid crystal display, an electrical field is applied to a liquid crystal material right above a common electrode and a pixel electrode using plural pairs of electrodes rather than one pair of electrodes. Error correction code circuitry receives the first set of data and calculates first ECC check bits representative of the first set of data. An auditable trusted log allows to rapidly resolve any dispute.