C–H functionalization enabled stereoselective Ugi-azide reaction to α-tetrazolyl alicyclic amines
作者:Surajit Haldar、Subhajit Saha、Sumana Mandal、Chandan K. Jana
DOI:10.1039/c8gc01544a
日期:——
novel reaction produces α-tetrazolyl N-heterocycles directly from N-heterocycles without involving pre-functionalization/pre-oxidation steps. Importantly, the stereoselective reaction involving chiral amines or chiral isocyanides allowed the expeditious syntheses of nucleoside analogs and α-tetrazolyl pyrrolidine in enantioenriched form.
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
One-Step Assembly of Carbamoyl-Substituted Heteroannelated [1,4]Thiazepines
作者:Alexey P. Ilyn、Marina V. Loseva、Vladimir Y. Vvedensky、Elena B. Putsykina、Sergey E. Tkachenko、Dmitri V. Kravchenko、Alexandr V. Khvat、Mikhail Y. Krasavin、Alexandre V. Ivachtchenko
DOI:10.1021/jo052640w
日期:2006.3.31
We present a convenient synthesis of novel heteroaryl-fused 3-oxo-1,4-thiazepine-5-carboxamides and 5-oxo-1,4-thiazepine-3-carboxamides using a modification of four-component Ugi condensation. We demonstrate the usefulness and versatility of the developed approach for the synthesis of variously substituted compounds and discuss the scope and limitations of the chemistry involved.
Two-Step Synthesis of Complex Artificial Macrocyclic Compounds
作者:Rudrakshula Madhavachary、Eman M. M. Abdelraheem、Arianna Rossetti、Aleksandra Twarda-Clapa、Bogdan Musielak、Katarzyna Kurpiewska、Justyna Kalinowska-Tłuścik、Tad A. Holak、Alexander Dömling
DOI:10.1002/anie.201704426
日期:2017.8.28
the Ugi‐reaction has been developed. This syntheticapproach of just two steps is unprecedented, short, efficient and works over a wide range of medium (8–11) and macrocyclic (≥12) loop sizes. The substrate scope and functional group tolerance is exceptional. Using this approach, we have synthesized 39 novel macrocycles by two or even one single synthetic operation. The properties of our macrocycles
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