The cytotoxic properties and preferential toxicity to tumour cells displayed by some 2,4-bis(benzylidene)-8-methyl-8-azabicyclo[3.2.1] octan-3-ones and 3,5-bis(benzylidene)-1-methyl-4-piperidones
Pati, Hari N × Das, Umashankar Das, Swagatika Bandy, Brian De Clercq, Erik Balzarini, Jan Kawase, Masami Sakagami, Hiroshi Stables, James P Quail, J Wilson Dimmock, Jonathan R #
European Journal of Medicinal Chemistry vol:44 issue:1 pages:54-62
This study demonstrated that replacement of the axial protons on the C2 and C6 atoms of various 1-methyl-3,5-bis(benzylidene)-4-piperidones 3 by a dimethylene bridge leading to series 2 lowered cytotoxic potencies. Four compounds 2a and 3a-c emerged as lead molecules based on their toxicity towards different neoplasms and their selective toxicity for malignant rather than normal cells. Some possible reasons for the disparity between the IC(50) values in the two series of compounds are presented based on molecular modeling, logP values and respiration in rat liver mitochondria.