Dipeptidyl aspartyl fluoromethylketones as potent caspase inhibitors: SAR of the N-protecting group
摘要:
This article describes the synthesis and biological evaluation of a group of N-protected Val-Asp-fmk as caspase inhibitors. The protecting group was found to contribute to caspase-3 inhibiting activity, and compounds with a large group such as Cbz are more active than compounds with a small group such as Ac. Compounds with more hydrophobic protecting groups were found to be more active in cell apoptosis protection assays, probably due to increased cell permeability. MX1122,2,4-di-Cl-Cbz-Val-Aspfmk, is identified as a potent broad-spectrum caspase inhibitor and is selective for caspases versus other proteases, with good activity in the cell apoptosis protection assays as well as good efficacy in the mouse liver apoptosis model. (C) 2004 Elsevier Ltd. All rights reserved.
Novel esters of phenylalkyloxy- or phenylalkylthioacylamino acids and pyridylalkyloxy- or pyridylalkylthioacylamino acids, synthesis thereof, intermediates therefor, and the use of said esters for the control of weeds.
Background: A series of new 6-(tert-butyl)-8-chloro-2,3-dimethyl quinoline derivatives were designed and synthesized. Results: The primarily antifungal assay results indicated that all of them exhibited excellent protective efficacy (100%) against Pyricularia oryae at 100 ppm, except compound 2m (90%). Among them, the compound 2p (6-(tert-butyl)-8-chloro-2,3-dimethylquinolin-4-yl(2-chloro-5- (trif
Bezobrazov,Yu.N. et al., Journal of Organic Chemistry USSR (English Translation), 1971, vol. 7, # 7, p. 2373 - 2376
作者:Bezobrazov,Yu.N. et al.
DOI:——
日期:——
4-Amino cyclohexylglycine analogues as potent dipeptidyl peptidase IV inhibitors
作者:Emma R. Parmee、Jiafang He、Anthony Mastracchio、Scott D. Edmondson、Larry Colwell、George Eiermann、William P. Feeney、Bahanu Habulihaz、Huaibing He、Ruth Kilburn、Barbara Leiting、Kathryn Lyons、Frank Marsilio、Reshma A. Patel、Aleksandr Petrov、Jerry Di Salvo、Joseph K. Wu、Nancy A. Thornberry、Ann E. Weber
DOI:10.1016/j.bmcl.2003.10.016
日期:2004.1
Substituted 4-amino cyclohexylglycine analogues were evaluated for DP-IV inhibitory properties. Bis-sulfonamide 15e was an extremely potent 2.6 nM inhibitor of the enzyme with excellent selectivity over all counterscreens. 2,4-Difluorobenzenesulfonamide 15b and 1-naphthyl amide 16b, however, combined an acceptable in vitro profile with good pharmacokinetic properties in the rat, and 15b was orally efficacious at 3 mpk in an OGTT in lean mice. (C) 2003 Elsevier Ltd. All rights reserved.