New pyrazolones as 11b-HSD1 inhibitors for diabetes
申请人:Amrein Kurt
公开号:US20070049574A1
公开(公告)日:2007-03-01
Compounds of formula
as well as pharmaceutically acceptable salts and esters thereof, wherein R
1
to R
4
have the significance given in claim
1
can be used in the form of pharmaceutical compositions.
Pyrazole derivative, intermediate therefor, processes for producing these, and herbicide containing these as active ingredient
申请人:Hirai Kenji
公开号:US20050070441A1
公开(公告)日:2005-03-31
The present invention provides a pyrazole derivative of the general formula (1),
which has an excellent efficacy as an active component for a herbicide, an intermediate for the production thereof, processes for the production thereof, and a herbicide containing the derivative as an active ingredient.
Pyrazole derivative, its intermediate, and herbicide containing the same as active ingredient
申请人:SAGAMI CHEMICAL RESEARCH CENTER
公开号:EP2292606A1
公开(公告)日:2011-03-09
The present invention provides a pyrazole derivative of the general formula (1),
which has an excellent efficacy as an active component for a herbicide, an intermediate for the production thereof, processes for the production of the intermediate, and a herbicide containing the derivative as an active ingredient.
Antimalarial Inhibitors Targeting Serine Hydroxymethyltransferase (SHMT) with in Vivo Efficacy and Analysis of their Binding Mode Based on X-ray Cocrystal Structures
作者:Geoffrey Schwertz、Matthias C. Witschel、Matthias Rottmann、Roger Bonnert、Ubolsree Leartsakulpanich、Penchit Chitnumsub、Aritsara Jaruwat、Wanwipa Ittarat、Anja Schäfer、Raphael A. Aponte、Susan A. Charman、Karen L. White、Abhijit Kundu、Surajit Sadhukhan、Mel Lloyd、Gail M. Freiberg、Myron Srikumaran、Marc Siggel、Adrian Zwyssig、Pimchai Chaiyen、François Diederich
DOI:10.1021/acs.jmedchem.7b00008
日期:2017.6.22
Target-based approaches toward new antimalarial treatments are highly valuable to prevent resistance development., We report several series of pyrazolopyran-based inhibitors targeting the enzyme serine hydroxymethyltransferase (SHMT), designed to improve microsomal metabolic stability and to identify suitable candidates for in vivo efficacy evaluation. The best ligands inhibited Plasmodium falciparum (Pf) and Arabidopsis thaliana (At) SHMT in target assays and PfNF54 strains in cell-based assays with values in the low nanomolar range (3.2-55 nM). A set of carboxylate derivatives demonstrated markedly improved in vitro metabolic stability (t(1/2) > 2 h). A selected ligand showed significant in vivo efficacy with 73% of parasitemia reduction in a mouse model. Five new cocrystal structures with PvSHMT were solved at 2.3-2.6 angstrom resolution, revealing a unique water-mediated interaction with Tyr63 at the end of the para-aminobenzoate channel. They also displayed the high degree of conformational flexibility of the Cys364-loop lining this channel.