Development of N-Methyl-(2-arylquinolin-4-yl)oxypropanamides as Leads to PET Radioligands for Translocator Protein (18 kDa)
摘要:
Translocator protein (18 kDa), known as TSPO, is a recognized biomarker of neuroinflammation. Radioligands with PET accurately quantify TSPO in neuroinflammatory conditions. However, the existence of three human TSPO genotypes that show differential affinity to almost all useful TSPO PET radioligands hampers such studies. There is an unmet need for genotype-insensitive, high-affinity, and moderately lipophilic TSPO ligands that may serve as leads for PET radioligand development. To address this need, we varied the known high-affinity TSPO ligand (l)-N,N-diethyl-2-methyl-3-(2-phenylquinolin-4-yl)propanamide in its aryl scaffold, side chain tether, and pendant substituted amido group while retaining an N-methyl group as a site for labeling with carbon-11. From this effort, oxygen-tethered N-methyl-aryloxypropanamides emerged as new high-affinity TSPO ligands with attenuated lipophilicity, including one example with attractive properties for PET radioligand development, namely N-methyl-N-phenyl-2-{[2-(pyridin-2-yl)quinolin-4-yl]oxy}propanamide (22a; rat K-i = 0.10 nM; human TSPO genotypes K-i = 1.4 nM; clogD = 4.18).
Development of N-Methyl-(2-arylquinolin-4-yl)oxypropanamides as Leads to PET Radioligands for Translocator Protein (18 kDa)
摘要:
Translocator protein (18 kDa), known as TSPO, is a recognized biomarker of neuroinflammation. Radioligands with PET accurately quantify TSPO in neuroinflammatory conditions. However, the existence of three human TSPO genotypes that show differential affinity to almost all useful TSPO PET radioligands hampers such studies. There is an unmet need for genotype-insensitive, high-affinity, and moderately lipophilic TSPO ligands that may serve as leads for PET radioligand development. To address this need, we varied the known high-affinity TSPO ligand (l)-N,N-diethyl-2-methyl-3-(2-phenylquinolin-4-yl)propanamide in its aryl scaffold, side chain tether, and pendant substituted amido group while retaining an N-methyl group as a site for labeling with carbon-11. From this effort, oxygen-tethered N-methyl-aryloxypropanamides emerged as new high-affinity TSPO ligands with attenuated lipophilicity, including one example with attractive properties for PET radioligand development, namely N-methyl-N-phenyl-2-{[2-(pyridin-2-yl)quinolin-4-yl]oxy}propanamide (22a; rat K-i = 0.10 nM; human TSPO genotypes K-i = 1.4 nM; clogD = 4.18).
The present invention provides a most suitable prodrug of a cinnamide compound. The prodrug is represented by Formula (I)
wherein R
a
and R
b
each denote a C1-6 alkyl group or the like; X
a
denotes a methoxy group or a fluorine atom; Y denotes a phosphono group or the like; and A denotes a cyclic lactam derivative.
本发明提供了一种桂皮酰胺化合物的最适宜的前药。该前药由式(I)表示,其中R
a
和R
b
分别表示C1-6烷基或类似物;X
a
表示甲氧基或氟原子;Y表示磷酸酯基团或类似物;A表示环内酰胺衍生物。
NOVEL INDOLE DERIVATIVES AND THEIR USE IN NEURODEGENERATIVE DISEASES
申请人:Merck Patent GmbH
公开号:US20160168090A1
公开(公告)日:2016-06-16
The present invention relates to indole compounds, and pharmaceutically acceptable compositions thereof, useful as antagonists of P2X7, and for the treatment of P2X7-related disorders.
本发明涉及吲哚化合物及其药用可接受的组合物,用作P2X7拮抗剂,用于治疗与P2X7相关的疾病。
[EN] LACTAM-CONTAINING CYCLIC DIAMINES AND DERIVATIVES AS FACTOR XA INHIBITORS<br/>[FR] DIAMINES CYCLIQUES CONTENANT DU LACTAME ET LEURS DERIVES UTILISES EN TANT QU'INHIBITEURS DU FACTEUR XA
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2004082687A1
公开(公告)日:2004-09-30
The present application describes lactam-containing cyclic diamines and derivatives thereof of Formula I: or pharmaceutically acceptable salt forms thereof, wherein M is a non-aromatic carbocycle or heterocycle. Compounds of the present invention are useful as inhibitors of trysin-like serine proteases, specifically factor Xa.
Aminopyrazine compounds as modulators of an adenosine receptor are provided. The compounds may find use as therapeutic agents for the treatment of diseases mediated through a G-protein-coupled receptor signaling pathway and may find particular use in oncology.
The present application relates to novel bicyclic compounds, to their use for controlling animal pests and to processes and intermediates for their preparation.