Design and synthesis of macrocyclic inhibitors of phosphatase cdc25B.

Based on molecular modeling studies, macrocyclic inhibitors of phosphatase cdc25B were synthetically derived from steroids. A preliminary SAR for this new template was elaborated. A series of compounds shows inhibition of cdc25B in the low micromolar range and good selectivity versus other phosphatases. The compounds did not show a significant antiproliferative effect in MaTu or HaCaT cells.