[EN] FACTOR XIa INHIBITORS<br/>[FR] INHIBITEURS DU FACTEUR XIA
申请人:MERCK SHARP & DOHME
公开号:WO2015164308A1
公开(公告)日:2015-10-29
The present invention provides a compound of Formula (I) and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes. The compounds are selective Factor XIa inhibitors or dual inhibitors of Factor XIa and plasma kallikrein.
Tuning chemoselectivity in <i>O</i>-/<i>N</i>-arylation of 3-aryl-1,2,4-oxadiazolones with <i>ortho</i>-(trimethylsilyl)phenyl triflates <i>via</i> aryne insertion
作者:Lijing Zhou、Hongji Li、Wenge Zhang、Lei Wang
DOI:10.1039/c8cc00124c
日期:——
A finely tunable chemoselectivity in arylation of 3-aryl-1,2,4-oxadiazolones with ortho-(trimethylsilyl)phenyl triflates is reported, including silver-catalysed O-arylation and metal-free N-arylation.
Transition-metal-catalyzed, directed intermolecular C–Hbond functionalization is synthetically useful but heavily underexplored in multiheteroatom heterocycle synthesis. Herein we report a cobalt catalytic method for the formation of a three-nitrogen-bearing benzotriazine scaffold via the coupling of arylhydrazine and oxadiazolone. This synthetic protocol features a low-cost base metal catalyst, a
This paper describes the synthesis and biological evaluation of a novelbifunctionalchelatingagent (BCA) based on bis(hydroxamamide) for 99mTc labeling of polypeptides. We successfully designed and synthesized C3(BHam)2―COOH as a new BCA. C3(BHam)2―COOH formed a stable 99mTc complex and enabled us to prepare 99mTc-labeled polypeptides by using a 2,3,5,6-tetrafluorophenol (TFP) active ester of C3(BHam)2―COOH
Orally Active GPIIb/IIIa Antagonists. Synthesis and Biological Activities of Masked Amidines as Prodrugs of 2-[(3S)-4-[(2S)-2-(4-Amidinobenzoylamino)-3-(4-methoxyphenyl)propanoyl]-3-(2-methoxy-2-oxoethyl)-2-oxopiperazinyl] acetic Acid.
To improve the in vivo potency of the potentGPIIb/IIIaantagonist 2-[(3S)-4-[(2S)-2-(4-amidinobenzoylamino)-3-(4-methoxyphenyl)propanoyl]-3-(2-methoxy-2-oxoethyl)-2-oxopiperazinyljacetic acid (4), the amidino group was converted to an oxadiazole ring, thiadiazole ring or substituted amidoxime group. These groups were expected to be metabolized to an amidino group in vivo. The compounds synthesized