The present invention relates to compounds having a fused, substituted
tricyclic scaffold and stereo-isomeric forms, solvates, hydrates and / or pharmaceutically acceptable salts of these compounds as well as pharmaceutical compositions containing at least one of these substituted
tricyclic derivatives together with pharmaceutically acceptable carrier,
excipient and / or diluents. Said substituted
tricyclic derivatives have been identified as especially potent ligands of FK506 binding proteins (FKBPs), especially human
FKBP12,
FKBP12.6,
FKBP51 and FKBP52 or bacterial homologs like LpMip, CtMip, CpMip, NgMip, KpMip, BpMip, TcMip, EcFKLB, EcFKPA, PaFKLB, PaFKPA, AbFKLB, AbFKPA, and are useful for treatment of diseases such as psychiatric, metabolic, infective, neurological and haematological disorders as well as pain and cancers and as anti-inflammatory drugs. Said substituted tricyclic derivatives may further be used as agents for inducing
protein-
protein interactions (PPIs) acting as molecular glues.