Development of Novel PET Probes for Central 2-Amino-3-(3-hydroxy-5-methyl-4-isoxazolyl)propionic Acid Receptors
摘要:
We document the development of PET probes for central AMPA receptors and their application to in vivo animal imaging. An initial screening of perampanel derivatives was performed to identify probe candidates. Despite the high autoradiographic contrast yielded by several radioligands, rat PET scans did not support their in vivo suitability. Further focused derivatization and a second screening by ex vivo LC-MS measurements led to the selection of 2-[1-(3-methylaminophenyl)-2-oxo-5-(pyrimidin-2-yl)1,2-dihydropyridin-3-yl]benzonitrile, 21a, and its analogues as candidates. [C-11]21a was shown by autoradiography to specifically bind to the neocortex and hippocampus, consistent with AMPA receptor localization. PET imaging with [C-11]21a demonstrated moderate uptake of radioactivity in rat and monkey brains, with the retention of radiosignals being consistent with that from the autoradiogram data, and the uptake was blocked by pretreatment with unlabeled 21a in a dose-dependent manner. The current approach has facilitated the discovery of a PET probe potentially suitable for translational research and development focused on AMPA receptors.
2-Methyl-5-Imino-Benzo[D][1,3]Oxazin[5-B]Pyrazole Compound, Preparation and Use Thereof
申请人:Su Guoqiang
公开号:US20110118247A1
公开(公告)日:2011-05-19
The present invention disclosed compound 2-methyl-5-imino-benzo[d][1,3]oxazin[5-b]pyrazole and preparation method and uses thereof. The compound 2-methyl-5-imino-benzo[d][1,3]oxazin[5-b]pyrazole of the present invention has the following structure of formula (II), wherein the compound or pharmaceutically acceptable salts thereof can be used for preparing the drugs for treatment or prevention of cardiovascular diseases.
[EN] HETEROCYCLE SUBSTITUTED AMINO-PYRIDINE COMPOUNDS AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS AMINO-PYRIDINE SUBSTITUÉS HÉTÉROCYCLIQUES ET LEURS PROCÉDÉS D'UTILISATION
申请人:EPIZYME INC
公开号:WO2016044666A1
公开(公告)日:2016-03-24
The present disclosure relates to heterocycle substituted amino-pyridine compounds. The present disclosure also relates to pharmaceutical compositions containing these compounds and methods of treating cancer by administering these compounds and pharmaceutical compositions to subjects in need thereof. The present disclosure also relates to the use of such compounds for research or other non-therapeutic purposes.
Methods of making 1-alkylindazoles are described. The methods involve reacting a 2-alkylaminobenzonitrile with a nitrosating agent followed by reduction-cyclization of the resulting nitrosamine to form a 1-alkyl-3-aminoindazole. The 1-alkyl-3-aminoindazole can be deaminated to form a 1-alkylindazole which ultimately can be used to form desired indazoles which are preferably pharmaceutically active products. The process of the present invention further permits the formation of enantiomerically enriched or pure indazoles such as aminoalkyl indazoles.
TETRAHYDROCARBAZOLE DERIVATIVES USEFUL AS ANDROGEN RECEPTOR MODULATORS
申请人:Fales Kevin Robert
公开号:US20100022550A1
公开(公告)日:2010-01-28
The present invention provides a compound of the formula: Formula (I) or a pharmaceutically acceptable salt thereof; pharmaceutical compositions comprising an effective amount of a compound of Formula (I) in combination with a suitable carrier, diluent, or excipient; and methods for treating physiological disorders, particularly frailty, osteoporosis, osteopenia, and male and female sexual dysfunction comprising administering to a patient in need thereof an effective amount of a compound of formula (I).