Potent Non-Nucleoside Inhibitors of the Measles Virus RNA-Dependent RNA Polymerase Complex
摘要:
Measles virus (MV) is one of the most infectious pathogens known. In spite of the existence of a vaccine, approximately 350000 deaths/year result from MV or associated complications. Antimeasles compounds Could conceivably diminish these statistics and provide a therapy that complements vaccine treatment. We recently described a high-throughput screening hit compound 1 (16677) against MV-infected cells with the capacity to eliminate viral reproduction at 250 nM by inhibiting the action of the virus's RNA-dependent RNA polymerase complex (RdRp). The compound, 1-methyl-3-(trifluoroi-nethyl)-N-[4-sulfonylphenyl]-1H-pyrazole-5-carboxamide, 1 carries a critical CF3 moiety on the 1,2-pyrazole ring. Elaborating on the preliminary structure-activity (SAR) study, the present work presents the synthesis and SAR of a much broader range of low nanomolar nonpeptidic MV inhibitors and speculates on the role of the CF3 functionality.
A hydrazide compound represented by the formula (1):
(wherein R
1
, R
2
, R
3
, R
4
, A
1
, A
2
, J, Q and n are defined in the specification) has excellent pesticidal activity.
Insecticidal anthranilic diamides: A new class of potent ryanodine receptor activators
作者:George P. Lahm、Thomas P. Selby、John H. Freudenberger、Thomas M. Stevenson、Brian J. Myers、Gilles Seburyamo、Ben K. Smith、Lindsey Flexner、Christopher E. Clark、Daniel Cordova
DOI:10.1016/j.bmcl.2005.08.034
日期:2005.11
A novel class of anthranilic diamides has been discovered with exceptional insecticidal activity on a range of Lepidoptera. These compounds have been found to exhibit their action by release of intracellular Ca2+ stores mediated by the ryanodine receptor. The discovery, synthesis, structure-activity, and biological results are presented. (c) 2005 Elsevier Ltd. All rights reserved.
Method for preparing pyrazolecarboxylic acid and derivatives