In response to a selected analog applied to the input terminal of an analog-to-digital converter, the digitized output signal is stored in a bufferregister. Preferably, plasma ions are magnetically confined in the FRC while plasma electrons are electrostatically confined in a deep energy well, created by tuning an externally applied magnetic field. The unit of data having the higher recall value is stored in a first section of a storage device. In particular, each such block is processed by applying a plurality of distinct encodings to the block to produce an equal plurality of distinct re-encoded block versions. The process can be adapted for the synthesis of a single stereoisomer or mixtures of stereoisomers, such as the stereoisomers trans-Ia and trans-Ib:Compounds of general formula I are useful for the preparation of hapten-carrier conjugates in the treatment of nicotine addiction. The invention also relates to pharmaceutical formulations of said compounds, methods of treatment using said compounds and to processes for the preparation of said compounds.