CINNAMOYL DISTAMYCIN ANALOGOUS DERIVATIVES, PROCESS FOR THEIR PREPARATION, AND THEIR USE AS ANTITUMOR AGENTS

摘要

Compounds which are cinnamoyl distamycin derivatives of formula (I), wherein n is 2, 3 or 4; R0 is C1-C4 alkyl or C1-C3 haloalkyl; R1 and R2, which are the same or different, are selected from hydrogen, C1-C4 alkyl optionally substituted by one or more fluorine atoms; and C1-C4 alkoxy; X is a halogen atom; Y and Z are the same or different and are selected, independently for each heterocyclic ring of the polyheterocyclic chain, from N and CH; B is selected from: (a), (b), (c), (d), (e), (f), (g) and (h), wherein R3, R4, R5, R6 and R7 are, independently from each other, hydrogen or C1-C4 alkyl; or pharmaceutically acceptable salts thereof; provided that at least one of the heterocyclic rings within the polyheterocyclic chain is other than pyrrole; are useful as antitumor agents.