2-1----4- PROCESS FOR PREPARATION OF OPTICALLY PURE AND OPTIONALLY SUBSTITUTED 2-1-HYDROXY-ALKYL-CHROMEN-4-ONE DERIVATIVES AND THEIR USE IN PREPARING PHARMACEUTICALS

摘要

The present invention relates to compounds useful as pharmaceutical intermediates, to methods of preparing the intermediates, to the intermediates used to prepare the intermediates and to the use of the intermediates in the manufacture of a medicament. In particular, the present invention relates to a process for preparing an enantiomerically pure, optionally substituted 2- (1-hydroxy-alkyl) -chromen-4-one derivative represented by formulas (IA) and (IB), alcohol derivatives thereof. And their use in the manufacture of a medicament.