Phosphinalkylene, 51<sup>1</sup>; Synthese und Reaktionen von [1-(Trialkylsilyl)alkyliden]triphenylphosphoranen
作者:Hans Jürgen Bestmann、Andreas Bomhard、Roman Dostalek、Rainer Pichl、Roland Riemer、Reiner Zimmermann
DOI:10.1055/s-1992-26227
日期:——
Synthesis and Reactions of [1-(Trialkylsilyl)alkylidene[triphenylphosphoranes Alkylidenetriphenylphosphoranes 1 react with trialkyl halosilanes 2 to afford silylated alkylidenephosphoranes 5, which can be converted to acylated alkylidenephosphoranes 8 and 10 by trimethylsilyl carboxylates 6 or carboxylic anhydrides 10. Bis(acylalkylidenephosphoranes) 13-15 are available from 5 and bis(trimethylsilyl) dicarboxylates 12 or cyclic or polymeric anhydrides 16, 17.
[EN] HUMAN PLASMA KALLIKREIN INHIBITORS<br/>[FR] INHIBITEURS DE LA KALLICRÉINE PLASMATIQUE HUMAINE
申请人:BIOCRYST PHARM INC
公开号:WO2015134998A1
公开(公告)日:2015-09-11
Disclosed are compounds of formula (I), as described herein, and pharmaceutically acceptable salts thereof. The compounds are inhibitors of plasma kallikrein. Also provided are pharmaceutical compositions comprising at least one compound of the invention, and methods involving use of the compounds and compositions of the invention in the treatment and prevention of diseases and conditions characterized by unwanted plasma kallikrein activity.
selective, potent small-molecule inhibitors of p300/CBP histoneacetyltransferases (HAT) with desired druglike properties, exemplified by B026. Our data demonstrated that B026, with half maximal inhibitory concentration (IC50) values of 1.8 nM to p300 and 9.5 nM to CBP enzyme inhibitory activity, is the most potent, selective p300/CBP HATinhibitor. Moreover, B026 achieves significant and dose-dependent tumor
Pd0-Catalyzed Coupling Cyclization Reaction of Aryl or 1Alkenyl Halides with 1,2-Allenyl Ketones: Scope and Mechanism. An Efficient Assembly of 2,3,4-, 2,3,5-Tri- and 2,3,4,5-Tetrasubstituted Furans
作者:Shengming Ma、Junliang Zhang、Lianghua Lu
DOI:10.1002/chem.200204664
日期:2003.6.6
Described herein is the Pd(0)-catalyzedcoupling cyclization reaction of 1,2-allenyl ketones with organichalides leading efficiently and conveniently to not only 2,3,4- and 2,3,5-trisubstituted furans but also 2,3,4,5-tetrasubstituted furans. Furthermore, this method showed high substituent-loading capability and tolerance of various substituents. The reactions of 1,2-allenyl ketones 1 e, 1 p, 1 q