The present invention relates to a compound with the following formula (I), or to a pharmaceutically acceptable salt thereof, as well as to pharmaceutical compositions including same and to the use thereof as a drug, in particular for treating a proliferative disease such as cancer.La présente invention concerne un composé de formule (I) suivante: ou un sel pharmaceutiquement acceptable de celui-ci, ainsi que les compositions pharmaceutiques le comprenant et son utilisation en tant que médicament, notamment pour le traitement dune maladie proliférative telle quun cancer.