Synergistic methodologies for the synthesis of 3-aroyl-2-arylbenzo[b]thiophene-based selective estrogen receptor modulators. Two concise syntheses of raloxifene
摘要:
Difunctionalized benzo[b] thiophene intermediates are prepared which allow fully independent elaboration of the 2-aryl position or the tether position of benzo[b]thiophene-based selective estrogen receptor modulators (SERMs). Two concise syntheses of the SERM raloxifene (Evista(R)) are presented. (C) 1999 Elsevier Science Ltd. All rights reserved.
Copper-Catalyzed Electrophilic Amination of Heteroarenes and Arenes by CH Zincation
作者:Stacey L. McDonald、Charles E. Hendrick、Qiu Wang
DOI:10.1002/anie.201311029
日期:2014.4.25
Direct amination of heteroarenes and arenes has been achieved in a one‐pot CH zincation/copper‐catalyzed electrophilic amination procedure. This amination method provides an efficient and rapid approach to access a diverse range of heteroaromatic and aromatic amines including those previously inaccessible using CH amination methods. The mild reaction conditions and good functional‐group compatibility
杂芳烃和芳烃的直接胺化已经在一锅C - H锌化/铜催化的亲电胺化过程中实现。这种胺化方法提供了一种高效、快速的方法来获得各种杂芳胺和芳香胺,包括以前使用 C - H 胺化方法无法获得的胺。温和的反应条件和良好的官能团相容性证明了其在合成重要且复杂的胺类方面的巨大潜力。
Preparation of Heterocyclic Amines by an Oxidative Amination of Zinc Organometallics Mediated by CuI: A New Oxidative Cycloamination for the Preparation of Annulated Indole Derivatives
作者:Marcel Kienle、Andreas J. Wagner、Cora Dunst、Paul Knochel
DOI:10.1002/asia.201000367
日期:2011.2.1
Functionalized heterocyclic zinc reagents are easily aminated by an oxidativeaminationreaction of zinc amidocuprates prepared from various lithium amides. For the oxidation step, PhI(OAc)2 proved to be the best reagent. The required heterocyclic zinc organometallics can be prepared either by direct metalation, by magnesium insertion in the presence of ZnCl2, or by transmetalation of a suitable magnesium
Nickel-Catalyzed Decarbonylative Amination of Carboxylic Acid Esters
作者:Christian A. Malapit、Margarida Borrell、Michael W. Milbauer、Conor E. Brigham、Melanie S. Sanford
DOI:10.1021/jacs.9b13531
日期:2020.4.1
synthetic chemists. This report describes the development of a nickel-catalyzeddecarbonylative reaction that couples (hetero)aromatic esters with a broad scope of amines to form (hetero)aryl amine products. The successful realization of this transformation was predicated on strategic design of the cross-coupling partners (phenol esters and silyl amines) to preclude conventional reactivity that forms
In Vitro Activity of Organochalcogen Compounds: II. Cytotoxic Effect of 2-Aminobenzo[b]thiophenes Against K562 and HeLa Tumor Cell Lines
作者:E. A. Popova、A. A. Kornev、S. V. Shmakov、G. D. Nepochatyi、O. A. Kotyunina、M. L. Petrov、V. M. Boitsov、A. V. Stepakov
DOI:10.1134/s107036322011033x
日期:2020.11
Abstract In vitro antitumor activity of some benzo[b]thiophenes with a tertiary amino group in the second position was studied against erythroleukemia (K562) and cervical carcinoma (HeLa) cell lines.
摘要 研究了一些在第二位具有叔氨基的苯并[ b ]噻吩的体外抗肿瘤活性,该药物对红白血病(K562)和宫颈癌(HeLa)细胞系具有抗性。
Preparation of Heterocyclic Amines via a Copper(I)-Mediated Oxidative Cross-Coupling of Organozinc Reagents with Lithium Amides
作者:Paul Knochel、Cora Dunst、Marcel Kienle
DOI:10.1055/s-0029-1220008
日期:2010.7
Functionalized heteroaromatic amines are readily prepared by the oxidative coupling of polyfunctional zinc amidocuprates using PhI(OAc)2 as oxidant. Various sensitive heterocyclic organometallics undergo this oxidativecross-coupling reaction furnishing aminated heteroaromatics. A high functional group tolerance and relative insensibility to steric hindrance characterize this general amination reaction