Diketoacid-genre HIV-1 integrase inhibitors containing enantiomeric arylamide functionality
作者:Xue Zhi Zhao、Kasthuraiah Maddali、Christophe Marchand、Yves Pommier、Terrence R. Burke
DOI:10.1016/j.bmc.2009.05.008
日期:2009.7
Using our recently disclosed 2,3-dihydro-6,7-dihydroxy-1H-isoindol-1-one and 4,5-dihydroxy-1H-isoindole-1,3( 2H)-dione integrase inhibitors, we report differential effects on inhibitory potency induced by introduction of an alpha-chiral center into a key aryl substituent. We show that introduction of the chiral center is uniformly deleterious to binding, with the (R)-enantiomer being more deleterious than the (S)enantiomer. A greater enantiomeric difference in potency is shown by inhibitors that have restricted rotation of the aryl ring, with the larger difference being due to poorer potency of the (R)-enantiomer rather than higher potency of the (S)-enantiomer. The potency difference for enantiomers based on the isoindoline-1,3-dione ring system is less than for those derived from the isoindol-1-one ring system. Our findings provide useful information that should aid in understanding molecular binding interactions of DKA-derived IN inhibitors. Published by Elsevier Ltd.