advantages of our methodology include an increased synthesis speed, very mild conditions giving access to hitherto unknown or highly reactive classes of isocyanides, rapid access to large numbers of functionalized isocyanides, increased yields, high purity, proven scalability over 5 orders of magnitude, increased safety and less reaction waste resulting in a highly reduced environmental footprint. For example
Synthesis of Isocyanides by Reacting Primary Amines with Difluorocarbene
作者:Yi-Xin Si、Peng-Fei Zhu、Song-Lin Zhang
DOI:10.1021/acs.orglett.0c03472
日期:2020.11.20
route for preparing a versatile building block of isocyanides from primary amines is developed. Difluorocarbene, generated in situ from decarboxylation of chlorodifluoroacetate, reacts efficiently with primary amines to produce isocyanides. Various primary amines are well tolerated, including aryl, heteroaryl, benzyl, and alkyl amines, as well as amine residues in amino acids and peptides. Late-stage
Combining High‐Throughput Synthesis and High‐Throughput Protein Crystallography for Accelerated Hit Identification
作者:Fandi Sutanto、Shabnam Shaabani、Rick Oerlemans、Deniz Eris、Pravin Patil、Mojgan Hadian、Meitian Wang、May Elizabeth Sharpe、Matthew R. Groves、Alexander Dömling
DOI:10.1002/anie.202105584
日期:2021.8.9
mmol scale synthesis on 96-well format and on a high-throughput nanoscale format in a highly automated fashion. High-throughput PX of our libraries efficiently yielded potent covalent inhibitors of the main protease of the COVID-19 causing agent, SARS-CoV-2. Our results demonstrate, that the marriage of in situ HT synthesis of (covalent) libraires and HT PX has the potential to accelerate hit finding
Copper-Catalyzed Modular Assembly of Polyheterocycles
作者:Qian Wang、Jesse Tuinhof、Kumchok C. Mgimpatsang、Katarzyna Kurpiewska、Justyna Kalinowska-Tluscik、Alexander Dömling
DOI:10.1021/acs.joc.0c01238
日期:2020.8.7
materials, and short syntheses of the privileged scaffold indeno[1,2-c]isoquinolinone were achieved by an multicomponent reaction (MCR)-based protocol via an ammonia–Ugi-four component reaction (4CR)/copper-catalyzed annulation sequence. The optimization and scope and limitations of this short and general sequence are described. The methodology allows an efficient construction of a wide variety of indenoisoquinolinones
通过氨-Ugi-四组分反应 (4CR)/铜的基于多组分反应 (MCR) 的方案实现了易于操作、易于获得的起始材料和特殊支架茚并[1,2- c ]异喹啉酮的短合成-催化的环化序列。描述了这个简短而通用的序列的优化、范围和限制。该方法只需两个步骤即可有效构建多种茚并异喹啉酮。
Automated, Accelerated Nanoscale Synthesis of Iminopyrrolidines
作者:Angelina Osipyan、Shabnam Shaabani、Robert Warmerdam、Svitlana V. Shishkina、Harry Boltz、Alexander Dömling
DOI:10.1002/anie.202000887
日期:2020.7.20
agrochemical, and materials research and development. Herein, we describe the synthesis of iminopyrrolidine‐2‐carboxylic acid derivatives using chiral glutamine, oxo components, and isocyanide building blocks in an unprecedented Ugi‐3‐component reaction. We used I‐DOT, a positive‐pressure‐based low‐volume and non‐contact dispensing technology to prepare more than 1000 different derivatives in a fully automated