CEPHALOTAXANES, THEIR METHOD OF PREPARATION AND THEIR USE IN TREATMENT OF CANCERS, LEUKEMIAS, PARASITES INCLUDING THOSE RESISTANT TO USUAL CHEMOTHERAPEUTIC AGENTS AND AS REVERSAL AGENTS

摘要

The present invention concerns a compound of formula (I)wherein:W represents O or NH,Q represents an unbranched or branched, saturated or unsaturated or aromatic, cyclic or acyclic or heterocyclic hydrocarbon radical containing 1 to 30 carbon atoms including or not heteroatom(s),R1 is H, OH, or OMe, O-(C1-C30)-alkyl, O-aryl-(C1-C30)-alkyl, O-(C2-C30)-alkenyl, O-(C3-C30)-cycloalkyl or null, andR2 is H or OH, or R1 and R2 form together -O-,R3=R4=OMe or R3 and R4 form together -OCH2O-,R is H, C1-C30 alkyl or O-protecting group and R6 represents an unbranched or branched, saturated or unsaturated or aromatic, cyclic or acyclic or heterocyclic hydrocarbon radical containing 1 to 30 carbon atoms including or not heteroatom(s), or R and R6 form together -CMe2-,n is 0 to 8,R5 is H, OH, OMe, O-(C1-C30)-alkyl, O-aryl-(C1-C30)-alkyl, O-(C2-C30)-alkenyl, O-(C3-C30)-cycloalkyl or O-aryl,the dotted line is null or forms a double bond depending on the meaning of R1.It also concerns their methods of preparation and their use in treatment of cancers, leukemias, parasites and as reversal agents of harringtonines.