3,5-Bis(benzylidene)-4-oxo-1-phosphonopiperidines and Related Diethyl Esters: Potent Cytotoxins with Multi-Drug-Resistance Reverting Properties

Autor: Jan Balzarini, Dennis K.J. Gorecki, Erik De Clercq, Joseph Molnár, Ponniah Selvakumar, Swagatika Das, Umashankar Das, Rajendra K. Sharma, Brian Bandy, Jonathan R. Dimmock, Zoltán Baráth, Gabriele Schatte, Julianna Serly
Rok vydání: 2009
Předmět:
Zdroj: ChemMedChem. 4:1831-1840
ISSN: 1860-7187
1860-7179
DOI: 10.1002/cmdc.200900288
Popis: A series of 3,5-bis(benzylidene)-4-piperidones 3 were converted into the corresponding 3,5-bis(benzylidene)-1-phosphono-4-piperidones 5 via diethyl esters 4. The analogues in series 4 and 5 displayed marked growth inhibitory properties toward human Molt 4/C8 and CEM T-lymphocytes as well as murine leukemia L1210 cells. In general, the N-phosphono compounds 5, which are more hydrophilic than the analogues in series 3 and 4, were the most potent cluster of cytotoxins, and, in particular, 3,5-bis-(2-nitrobenzylidene)-1-phosphono-4-piperidone 5 g had an average IC(50) value of 34 nM toward the two T-lymphocyte cell lines. Four of the compounds displayed potent cytotoxicity toward a panel of nearly 60 human tumor cell lines, and nanomolar IC(50) values were observed in a number of cases. The mode of action of 5 g includes the induction of apoptosis and inhibition of cellular respiration. Most of the members of series 4 as well as several analogues in series 5 are potent multi-drug resistance (MDR) reverting compounds. Various correlations were noted between certain molecular features of series 4 and 5 and cytotoxic properties, affording some guidelines in expanding this study.
Databáze: OpenAIRE