Design, Synthesis, and Antiviral Activity of Entry Inhibitors That Target the CD4-Binding Site of HIV-1
摘要:
The CD4 binding site on HIV-1 gp120 has been validated as a drug target to prevent HIV-1 entry to cells. Previously, we identified two small molecule inhibitors consisting of a 2,2,6,6-tetramethylpiperidine ring linked by an oxalamide to a p-halide-substituted phenyl group, which target this site, specifically, a cavity termed "Phe43 cavity". Here we use synthetic chemistry, functional assessment, and structure-based analysis to explore variants of each region of these inhibitors for improved antiviral properties. Alterations of the phenyl group and of the oxalamide linker indicated that these regions were close to optimal in the original lead compounds. Design of a series of compounds, where the tetramethylpiperidine ring was replaced with new scaffolds, led to improved antiviral activity. These new scaffolds provide insight into the surface chemistry at the entrance of the cavity and offer additional opportunities by which to optimize further these potential-next-generation therapeutics and microbicides against HIV-1.
Phenylglycinamide and pyridylglycinamide derivatives useful as anticoagulants
申请人:Zhang Xiaojun
公开号:US20070003539A1
公开(公告)日:2007-01-04
The present invention provides novel phenylglycinamide derivatives of Formula (I) or (IV):
or a stereoisomer, tautomer, pharmaceutically acceptable salt, solvate, or prodrug thereof, wherein the variables W, W
1
, Y, Z, R
7
, R
8
, R
9
, and R
11
are as defined herein. These compounds are selective inhibitors of factor VIIa which can be used as medicaments.
[EN] ACYLGUANIDINES AS TRYPTOPHAN HYDROXYLASE INHIBITORS<br/>[FR] ACYLGUANIDINES COMME INHIBITEURS DE LA TRYPTOPHAN HYDROXYLASE
申请人:KAROS PHARMACEUTICALS INC
公开号:WO2015089137A1
公开(公告)日:2015-06-18
The present invention is directed to acylguanidines which are inhibitors of tryptophan hydroxylase (TPH), particularly isoform 1 (TPHl), that are useful in the treatment of diseases or disorders associated with peripheral serotonin including, for example, gastrointestinal, cardiovascular, pulmonary, inflammatory, metabolic, and low bone mass diseases, as well as serotonin syndrome, and cancer.
Discovery of acyl guanidine tryptophan hydroxylase-1 inhibitors
作者:Daniel R. Goldberg、Stéphane De Lombaert、Robert Aiello、Patricia Bourassa、Nicole Barucci、Qing Zhang、Vishwas Paralkar、Adam J. Stein、Jim Valentine、William Zavadoski
DOI:10.1016/j.bmcl.2016.04.057
日期:2016.6
An increasing number of diseases have been linked to a dysfunctional peripheral serotonin system. Given that tryptophan hydroxylase 1 (TPH1) is the rate limiting enzyme in the biosynthesis off serotonin, it represents an attractive target to regulate peripheral serotonin. Following up to our first disclosure, we report a new chemotype of TPH1 inhibitors where-by the more common central planar heterocycle has been replaced with an open-chain, acyl guanidine surrogate. Through our work, we found that compounds of this nature provide highly potent TPH1 inhibitors with favorable physicochemical properties that were effective in reducing murine intestinal 5-HT in vivo. Furthermore, we obtained a high resolution (1.90 angstrom) X-ray structure crystal structure of one of these inhibitors (compound 51) that elucidated the active conformation along with revealing a dimeric form of TPH1 for the first time. (C) 2016 Elsevier Ltd. All rights reserved.
PHENYLGLYCINAMIDE AND PYRIDYLGLYCINAMIDE DERIVATIVES USEFUL AS ANTICOAGULANTS