Polymer Bound 3,5-Cyclohexadiene-1,2-diols as Core Structures for the Development of Small Molecule Libraries
作者:Sebastian Wendeborn、Alain De Mesmaeker、Wolfgang K.-D. Brill
DOI:10.1055/s-1998-1808
日期:1998.8
A highly efficient sequence for the synthesis of complex, chiral and highly functionalized molecules on solid phase is reported. Solid phase bound cyclohexadiene-diols were derivatized through epoxidation, nucleophilic ring opening, Pd(0) cross-couplings and Diels-Alder reactions.
Radiohalogenated half-antibodies and maleimide intermediate therefor
申请人:President and Fellows of Harvard College
公开号:US04994557A1
公开(公告)日:1991-02-19
N-(m-radiohalophenyl) maleimide can be conjugated with a reduced antibody having a mercapto group to provide a radiolabelled half-antibody having immunological specific binding characteristics of whole antibody.
‘On Water’‐Promoted Three‐Component Tandem Michael Addition/D−A Cycloaddition Reaction to Construct Polycyclic
<i>N</i>
‐Heterocycles Derivatives
作者:Yu Dong、Liang‐Xian Luo、Chen Hua、Ze‐Jing He、Yong Chen、Zhi‐Chuan Shi、Zhong‐Hui Li、Bing He
DOI:10.1002/cbdv.202300100
日期:——
‘On Water’-promoted the three-component tandem Michael addition/D−A cycloaddition reaction in 80 °C at 3 h has been developed without employing any catalyst and organic solvent. The process allows facile access to polycyclic N-heterocycles derivatives contain indole and maleimide from easily accessible starting materials in moderate to high yields (up to 91 %). Compared with conventional reaction conditions
Copper-catalyzed direct oxidative amination of maleimides and quinones with formamides in the presence of an oxidant KIO3
作者:Yu Dong、Zhen-Zhen Peng、Lin Chen、Yue-Qin Lin、Mei-Feng Lan、Chun-Mei Wu、Zhi-Chuan Shi、Guowei Deng、Bing He
DOI:10.1016/j.tet.2024.133916
日期:2024.4
A facile, efficient, and practical method for copper-catalyzeddirectamination of maleimides and quinones with formamides in the presence of an oxidant KIO has been developed. It allows a facile access to a wide range of functionalized molecules with privileged scaffolds in drugs and natural products such as maleimides and quinones. A variety of substituted 3-amino-maleimides and 2-amino-quinones
开发了一种在氧化剂 KIO 存在下铜催化马来酰亚胺和醌与甲酰胺直接胺化的简便、高效且实用的方法。它可以轻松获得各种功能化分子,并在药物和天然产物(如马来酰亚胺和醌)中具有特殊的支架。合成了多种取代的3-氨基马来酰亚胺和2-氨基醌,产率中等至优异。