Derivatives of aminoboronic acids, their preparation and their use as synthesis intermediates.

摘要

P Compounds of formula (I) BR/ (CF DRAWING IN BOPI) BR/ BR/ wherein BR/ R2 represents an imidazol-4- (5) -yl group optionally substituted with a (C1-C4) alkyl group and R3 and R4 are each a hydrogen atom or together represent the residue of a dihydroxy compound such as for example butane-2,3-diol, 2,3 -dimethylbutane-2,3-diol or (1alpha, 3alpha, 5alpha) -2,6,6-trimethylbicyclo [3.1.1] heptane-2,3-diol [(+) - alpha-pinanediol]. Synthetic intermediates. / P