Prenylated xanthones as potential P-glycoprotein modulators
摘要:
Dimethylallyl (DMA) derivatives of a naturally occurring xanthone (decussatin 1) were prepared. Their activity as potential P-glycoprotein inhibitors was monitored by affinity of direct binding and compared to that of corresponding DMA-flavones. Both classes of compounds exhibited the same structure-activity relationships. Decreasing polarity enhanced the binding affinity for the P-glycoprotein C-terminal cytosolic domain since DMA derivatives were more active, bur, unsubstituted hydroxyl group close to the carbonyl was required for efficient activity. (C) 2000 Elsevier Science Ltd. All rights reserved.