[EN] OXAZOLIDINONE HYDROXAMIC ACID COMPOUNDS FOR THE TREATMENT OF BACTERIAL INFECTIONS<br/>[FR] COMPOSÉS D'ACIDE OXAZOLIDINONE-HYDROXAMIQUE POUR LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
申请人:NOVARTIS AG
公开号:WO2015066413A1
公开(公告)日:2015-05-07
This invention pertains generally to treating bacterial infections using organic compounds of Formula I. In certain aspects, the invention pertains to treating infections caused by Gram-negative bacteria. (I) wherein X, Y, R1, R2, R3, R4 and R5 and defined herein.
Synthesis of α-Acyloxy-α′-hydroxy Ketones via Cyclic Carbonate Intermediates Generated from Tertiary Bromopropargylic Alcohols and Cs<sub>2</sub>
CO<sub>3</sub>
作者:Olesya A. Shemyakina、Ol'ga G. Volostnykh、Anton V. Stepanov、Igor' A. Ushakov
DOI:10.1002/ejoc.201901226
日期:2019.11.14
The Cs2CO3‐promoted synthesis of α‐acyloxy‐α′‐hydroxy ketones is reported, in which tertiary bromopropargylic alcohols undergo hydration/acylation with carboxylic acids via in situ formation of cyclic carbonates.
据报道,Cs 2 CO 3促进了α-酰氧基-α'-羟基酮的合成,其中叔溴炔丙醇通过原位形成环状碳酸酯与羧酸水合/酰化。
Highly Selective Manganese(I)/Lewis Acid Cocatalyzed Direct C−H Propargylation Using Bromoallenes
A manganese(I)/Lewisacid cocatalyzed direct C−H propargylation with high selectivity has been developed. BPh3 was discovered to not only promote the reactivity, but also enhance the selectivity. Secondary, tertiary, and even quaternary carbon centers at the propargylic position could be directly constructed. Both internal and terminal alkynes are easily accessible. The chirality was successfully transferred
Ruthenium-Catalyzed Alkyne<i>trans</i>-Hydrometalation: Mechanistic Insights and Preparative Implications
作者:Dragoş-Adrian Roşca、Karin Radkowski、Larry M. Wolf、Minal Wagh、Richard Goddard、Walter Thiel、Alois Fürstner
DOI:10.1021/jacs.6b12517
日期:2017.2.15
[Cp*RuCl]4 (1) has previously been shown to be the precatalyst of choice for stereochemically unorthodox trans-hydrometalations of internal alkynes. Experimental and computational data now prove that the alkyne primarily acts as a four-electron donor ligand to the catalytically active metal fragment [Cp*RuCl] but switches to adopt a two-electron donor character once the reagent R3MH (M = Si, Ge, Sn)
Selectivity in the Ruthenium-Catalyzed Alder Ene Reactions of Di- and Triynes
作者:Eun Jin Cho、Daesung Lee
DOI:10.1021/ja0719430
日期:2007.5.1
Ruthenium-catalyzed Alder enereactions between diynes and triynes with terminal alkenes gave the corresponding enynes and enediynes with high regio- and site-selectivity. The selectivity profile clearly indicates that one of the alkynyl moieties of 1,3-diynes not participating in the reaction determines the regiochemistry, whereas the interplay between steric hindrance and polar substituents at the