Investigation on the role of the tetrazole in the binding of thiotetrazolylacetanilides with HIV-1 wild type and K103N/Y181C double mutant reverse transcriptases
摘要:
The role of the tetrazole moiety in the binding of aryl thiotetrazolylacetanilides with HIV-1 wild type and K103N/Y181C double mutant reverse transcriptases was explored. Different acyclic, cyclic and heterocyclic replacements were investigated in order to evaluate the conformational and electronic contribution of the tetrazole ring to the binding of the inhibitors in the NNRTI pocket. The replacement of the tetrazole by a pyrazolyl group led to reversal of selectivity, providing inhibitors with excellent potency against the double mutant reverse transcriptase. (C) 2008 Elsevier Ltd. All rights reserved.
Described herein are compounds useful in the reduction of blood uric acid levels, formulations containing them and methods of making and using them. In some embodiments, a compound disclosed herein are used in the treatment or prevention of disorders related to aberrant levels of uric acid.
Compounds of formula (I):
wherein Ar, X, R
1
, R
2
, R
3
and R
4
are as defined herein. The compounds are useful as reverse transcriptase inhibitors against wild type and single or double mutant strains of HIV.