Synthesis of (R) and (S)-aminocarnitine, (R) and (S)-4-phosphonium-3-amino-butanoate, (R) and (S) 3,4-diaminobutanoic acid, and their derivatives starting from D- and L-aspartic acid

摘要

A process is described for the preparation of R or S aminocarnitine, R or S phosphonium aminocarnitine and R and S 3,4 diaminobutanoic acid, and their derivatives with the following formula: chemistry chemdraw filechemistry mol file;where Y is as described in the attached description, starting from aspartic acid with the same configuration as the desired compounds. This process is advantageous from the industrial point of view in terms of the type of reactants used, the reduced volumes of solvents and the possibility of avoiding purification of the intermediate products.