Six‐ and seven‐membered benzo‐fused cyclic homoallylic alcohols can be readily synthesized by a tandem chiral Brønsted acid‐catalyzed allyl (crotyl)boration/ringclosingmetathesis sequence performed under orthogonal relay catalysis conditions. Excellent enantio‐ and diastereoselectivities are obtained in most of the cases. In addition, the parent crotylboration/RCM process is also described. The required
Pyrazolopyrimidine Macrocycles as Inhibitors of Human Immunodeficiency Virus Replication
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20150232481A1
公开(公告)日:2015-08-20
The disclosure generally relates to compounds of formula I, including compositions and methods for treating human immunodeficiency virus (HIV) infection. The disclosure provides novel inhibitors of HIV, pharmaceutical compositions containing such compounds, and methods for making and using these compounds in the treatment of HIV infection.
copper-catalyzed intramolecular enantioselective and diastereoselective borylative coupling of styrenes and ketones was achieved by merging desymmetrization strategy and olefin difunctionalization. The reaction proceeds through an initial enantioselective borylcupration of styrenes, followed by a highly selective direct addition to 1,3-diketones. The bicyclic scaffolds with three chiralcarboncenters, including
Palladium-Catalyzed Tandem Hydrocarbonylative Lactamization and Cycloaddition Reaction for the Construction of Bridged Polycyclic Lactams
作者:Pengcheng Xu、Bo Qian、Bin Hu、Hanmin Huang
DOI:10.1021/acs.orglett.1c03772
日期:2022.1.14
The intramolecular hydroaminocarbonylation of alkenes is a compelling tool to rapidlyaccess lactam, a privileged motif ubiquitous in natural products, pharmaceuticals, and agrochemicals. However, selective carbonylation to bridged polycyclic lactams with a lactam nitrogen at a bridgehead position is less explored. We herein report a modular palladium-catalyzed approach to perform a tandem hydrocarbonylative
烯烃的分子内氢氨基羰基化是快速获得内酰胺的有力工具,内酰胺是天然产物、药物和农用化学品中普遍存在的一种特殊基序。然而,在桥头位置具有内酰胺氮的桥接多环内酰胺的选择性羰基化研究较少。我们在此报告了一种模块化的钯催化方法,用于与 2-乙烯基芳基醛亚胺、烯烃和 CO 进行串联烃基化内酰胺化/Diels-Alder 环加成反应,这为以高产率和高选择性提供桥接多环内酰胺提供了便利。
Diastereoselective Synthesis of Substituted Tetrahydroisoquinolines and Isoindolines<i>via</i>a Silver(I) Triflate-Promoted Tandem Reaction
作者:Siyang Xing、Jing Ren、Kui Wang、Hong Cui、Han Yan、Wenrui Li
DOI:10.1002/adsc.201500903
日期:2016.2.18
A new silver(I) triflate‐promoted tandem reaction comprising the ring opening of aziridines and a Michael reaction has been developed. Using secondary amines or primary amines as nucleophiles, this methodology allows for the synthesis of cis‐1‐alkyl‐4‐aminotetrahydroisoquinolines or cis‐1,3‐disubstituted isoindolines in good yields with excellent diastereoselectivities, respectively. Besides, easy