NEW L-FUCOSE ANALOGS, METHOD OF PREPARATION, APPLICATION OF SUCH ANALOGS TO THE PREPARATION OF NEW GLYCALS, ANTHRACYCLINES OBTAINED WITH SAID GLYCALS AND UTILIZATION OF SAID ANTHRACYCLINES AS DRUGS

摘要

The present invention relates to new L-Fucose analogs, their method of preparation, the application of such analogs to the preparation of new glycals, anthracyclines obtained by using such glycals and utilization of such anthracyclines as drugs. The glycals are obtained from L-Fucose and/or its analogs having the formula (1') and have the formula (2), wherein R is an optionally substituted linear or branched alkyl group or an optionally substituted aryl group, whith the exception of a CH2OR group or a CH2OR3 group, R3 having the same meaning as R.