The first asymmetric nickel‐catalyzed intramolecular reductivecyclization of alkynones is reported. A P‐chiral monophosphine and triethylsilane were used as the ligand and the reducing reagent, respectively, to form a series of tertiary allylic alcohols bearing furan/pyran rings in excellent yields and enantioselectivities. This reaction has a broad substrate scope and enabled the efficient synthesis
An Effective Synthetic Entry to Fused Benzimidazoles via Iodocyclization
作者:Xu Zhang、Yu Zhou、Hengshuai Wang、Diliang Guo、Deju Ye、Yungen Xu、Hualiang Jiang、Hong Liu
DOI:10.1002/adsc.201100038
日期:2011.6
A protocol for the synthesis of the fused heterocyclic polycyclic compounds pyrrole[1,2‐a]benzimidazoles, piperidine[1,2‐a]benzimidazoles and oxa‐fusedbenzimidazoles using iodine and silver nitrate by an exo‐dig or endo‐dig cyclization pathway at room temperature has been developed. Silver nitrate is a key additive for improving the yield, and the improvement is a result of this additive eliminating
The Nitrile Functionality as a Directing Group in the Palladium-Catalysed Addition of Aryl Boronic Acids to Alkynes
作者:Arantxa Rodriguez、Wesley Moran
DOI:10.2174/157017810790533931
日期:2010.1.1
The nitrile group is shown to direct the palladium-catalysed hydroarylation of internal alkynes bearing a pendant nitrile with boronic acids.
[EN] SYSTEMS AND METHODS TO TRACK THE EVOLUTION OF SINGLE CELLS<br/>[FR] SYSTÈMES ET PROCÉDÉS POUR SUIVRE L'ÉVOLUTION DE CELLULES UNIQUES
申请人:[en]GENENTECH, INC.
公开号:WO2021188973A1
公开(公告)日:2021-09-23
Cells in a given population often display heterogeneity that may affect how each cell responds to a particular treatment or growth condition. The methods described herein allow determination of which cells from an initial population survive a treatment or condition, and how surviving cells evolve over time. For example, the methods described herein may be used to model drug resistance, response and/or adaptation in a cell population.