Hypervalent iodine compounds ( iodosobenzene diacetate ), benzophenone imines of glycine derivatives, |¡e-cyclic amino acids (acpc, cycloleucine ), diaminopropionic acid &2, 4-diaminobutyric acid derivatives (dap &daba), homoserine &homoserine lactone, 3-amino-3-aryl propionic acids, amino alcohols, other special amino acids and its derivatives, chiral intermediates, guanidines, substituted mandelic acid derivatives, pharmaceutical intermediates.