The invention relates to the use of hymenialdisine or derivatives thereof of formula (I) in which R1 and R2, identical or different, represent H or Br, or a pharmaceutically acceptable salt thereof, in the manufacture of a medicament for use in inhibiting acceptable salt thereof, in the manufacture of a medicament for use in inhibiting cycline dependent kineases, GSK-3.beta. and casein kinase 1. Application for preventing and treating neurodegenerative disorders, diabetes, inflammatory pathologies and cancers.