Versatile Pyrrole Synthesis through Ruthenium(II)-Catalyzed Alkene C–H Bond Functionalization on Enamines
作者:Lianhui Wang、Lutz Ackermann
DOI:10.1021/ol303224e
日期:2013.1.4
An efficient ruthenium(II) catalyst enabled broadly applicable oxidative alkyne annulations with electron-rich enamines to provide diversely decorated pyrroles, even in an aerobic fashion with air as the ideal oxidant.
Rh<sup>III</sup>‐Catalyzed Oxidative Olefination of Vinylic CH Bonds: Efficient and Selective Access to Di‐unsaturated α‐Amino Acid Derivatives and Other Linear 1,3‐Butadienes
作者:Tatiana Besset、Nadine Kuhl、Frederic W. Patureau、Frank Glorius
DOI:10.1002/chem.201101340
日期:2011.6.20
get‐together! A RhIII‐catalyzedoxidative cross‐coupling of different olefins was developed, resulting in the formation of valuable linear butadiene products and especially di‐unsaturated α‐amino acid derivatives. 1,1‐Di‐, 1,2‐di‐, and 1,1,2‐trisubstituted olefins could be coupled with styrenes and acrylates. In these reactions, remarkably high levels of chemo‐, regio‐, and stereoselectivity were obtained
[EN] INHIBITORS OF CBL-B AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS DE CBL-B ET LEURS PROCÉDÉS D'UTILISATION
申请人:NURIX THERAPEUTICS INC
公开号:WO2019148005A1
公开(公告)日:2019-08-01
Compounds, compositions, and methods for use in inhibiting the E3 enzyme Cbl-b in the ubiquitin proteasome pathway are disclosed. The compounds, compositions, and methods can be used to modulate the immune system, to treat diseases amenable to immune system modulation, and for treatment of cells in vivo, in vitro, or ex vivo.
Direct, enantioselective synthesis of pyrroloindolines and indolines from simple indole derivatives
作者:Jane Ni、Haoxuan Wang、Sarah E. Reisman
DOI:10.1016/j.tet.2013.04.003
日期:2013.7
The (R)-BINOL·SnCl4-catalyzed formal (3+2) cycloaddition between 3-substituted indoles and benzyl 2-trifluoroacetamidoacrylate is a direct, enantioselective method to prepare pyrroloindolines from simple starting materials. However, under the originally disclosed conditions, the pyrroloindolines are formed as mixtures of diastereomers, typically in the range of 3:1 to 5:1 favoring the exo-product. The
( R )-BINOL·SnCl 4催化的 3-取代吲哚与 2-三氟乙酰氨基丙烯酸苄酯之间的形式 (3+2) 环加成反应是一种直接的、对映选择性的方法,可从简单的起始原料制备吡咯并二氢吲哚。然而,在最初公开的条件下,吡咯并二氢吲哚形成为非对映异构体的混合物,通常在3:1至5:1的范围内,有利于外型产物。差的非对映选择性有损于反应的合成效用。我们在此报告了 2-三氟乙酰氨基丙烯酸甲酯与 ( R )-3,3'-二氯-BINOL·SnCl 4 结合使用提供具有改进的非对映选择性(通常≥10:1)的相应吡咯并二氢吲哚。在机理研究的指导下,还描述了通过原位还原持久性亚胺离子来合成富含对映体二氢吲哚的单瓶合成。
Sequential Functionalization of <i>meta</i>-C–H and <i>ipso</i>-C–O Bonds of Phenols
The use of a template as a linchpin motif in directed remoteC-H functionalization is a versatile yet relatively underexplored strategy. We have developed a template-directed approach to realizing one-pot sequential palladium-catalyzed meta-selective C-H olefination of phenols, and nickel-catalyzed ipso-C-O activation and arylation. Thus, this bifunctional template converts phenols to synthetically