Stereoselective Coupling of Prochiral Radicals with a Chiral <i>C</i><sub>2</sub>-Symmetric Nitroxide
作者:Rebecca Braslau、Neeta Naik、Hendrik Zipse
DOI:10.1021/ja000520u
日期:2000.9.1
The coupling reaction between a chiral C2-symmetric nitroxide, trans-2,5-dimethyl-2,5-diphenylpyrrolidin-1-oxyl (DPPO; 1), and a series of stabilized secondary prochiral radicals was studied to determine the factors that affect stereoselectivity. Both steric and electronic perturbations on the selectivity by the substituents of the prochiral radical were observed. The effects of temperature, solvent
Direct halogenation of alcohols with halosilanes under catalyst- and organic solvent-free reaction conditions
作者:Njomza Ajvazi、Stojan Stavber
DOI:10.1016/j.tetlet.2016.04.083
日期:2016.6
A chemoselective method for the direct halogenation of different types of alcohols with halosilanes under catalyst- and solvent-freereactionconditions (SFRC) is reported. Various primary, secondary and tertiary benzyl alcohols and tertiary alkyl alcohols were directly transformed to the corresponding benzyl and alkyl halides, respectively, using chlorotrimethylsilane (TMSCl) and bromotrimethylsilane
[EN] HETEROCYCLIC COMPOUNDS AS KINASE INHIBITORS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES EN TANT QU'INHIBITEURS DE KINASE
申请人:NUVATION BIO INC
公开号:WO2021003314A1
公开(公告)日:2021-01-07
Heterocyclic compounds as CDK4 or CDK6 or other CDK inhibitors are provided. The compounds may find use as therapeutic agents for the treatment of diseases and may find particular use in oncology.
[EN] BCL-2 INHIBITOR<br/>[FR] INHIBITEUR DE BCL -2
申请人:BEIGENE LTD
公开号:WO2021208963A1
公开(公告)日:2021-10-21
Disclosed herein is a compound of Formula (I) for inhibiting both Bcl-2 wild type and mutated Bcl-2, in particular, Bcl-2 G101V and D103Y, and a method of using the compound disclosed herein for treating dysregulated apoptotic diseases.
We herein report a transition-metal-free cross-coupling between secondaryalkylhalides/mesylates and aryl/alkenylboronic acid, providing expedited access to a series of nonchiral/chiral coupling products in moderate to good yields. Stereospecific SN2-type coupling is developed for the first time with alkenylboronic acids as pure nucleophiles, offering an attractive alternative to the stereospecific