RT Journal Article T1 MDR Reversal by Deprenylated Tetracyclic and Hexacyclic Analogues of N-Acetylardeemin: Confirmation of the Ardeemin Pharmacophore A1 Avendaño López, María Carmen A1 Caballero, Esmeralda A1 Mendez-Vidal, Cristina A1 Quesada, Ana R. de A1 Menéndez Ramos, José Carlos AB The MDR chemosensitising activity of several analogues of the ardeemins, including five derivatives of the ABCD fragment, nine derivatives of the complete hexacyclic framework and one seco analogue lacking the B ring was studied. The results obtained confirm that the pharmacophoric moiety of the ardeemins as MDR reversers is located at their DEF fragment, and suggest that the epimer of the ardeemins at the alanine stereocenter should be more active than the natural stereoisomer. PB Bentham Science Publishers SN 1570-1808 YR 2006 FD 2006 LK https://hdl.handle.net/20.500.14352/133494 UL https://hdl.handle.net/20.500.14352/133494 LA eng DS Docta Complutense RD 17 mar 2026