Depsipeptider og deres terapeutiske anvendelse

摘要

The subject application pertains to a compound of structure IX or X: or a pharmaceutically acceptable salt thereof, wherein: X is -C(=O)N(R10)- or -CH(OPr3) -; R7, R9 and R10 are the same or different and represent hydrogen or an amino acid side chain moiety from either a natural or an unnatural amino acid; Pr1 and Pr2 are the same or different and represent hydrogen or a thiol protecting group; Pr3 is hydrogen or an alcohol protecting group; R1, R2, R5 and R6 are the same or different and represent hydrogen or an amino acid side chain moiety from either a natural or an unnatural amino acid, or R1 and R2 and/or R5 and R6, taken together with the carbon atom to which they are attached, form a spirocyclic moiety, with the proviso that: each of R1 and R2 is not hydrogen, or each of R5 and R6 is not hydrogen.