Huperzine alkaloids: forty years of total syntheses DOI
Bichu Cheng, Lili Song, Fen‐Er Chen

et al.

Natural Product Reports, Journal Year: 2023, Volume and Issue: 41(1), P. 59 - 84

Published: Oct. 11, 2023

Covering: up to 2023Huperzine alkaloids are a group of natural products belonging the

Language: Английский

Continuous Flow Chemistry with Solids: A Review DOI
Hannah L. D. Hayes, Carl J. Mallia

Organic Process Research & Development, Journal Year: 2024, Volume and Issue: 28(5), P. 1327 - 1354

Published: March 14, 2024

The effective handling of solids in a continuous flow process is one the biggest perceived challenges remaining for modern chemistry. This Review aims to consider some processes chemistries involving which have been successfully implemented. Learnings from design these systems, and identification common blockers, will guide generalized, strategic approach drive efficiency future batch-to-flow development challenging, heterogeneous systems. Assorted techniques managing continuous-flow synthesis be presented herein through series case studies, broken down into several key categories; solubility considerations, setup components modularity, applications ultrasonication, reactor type Grignard reactions.

Language: Английский

Citations

13

Copper-catalyzed asymmetric allylic substitution of racemic/meso substrates DOI Creative Commons
Jun Li, Junrong Huang, Yan Wang

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(22), P. 8280 - 8294

Published: Jan. 1, 2024

The synthesis of enantiomerically pure compounds is a pivotal subject in the field chemistry, with enantioselective catalysis currently standing as primary approach for delivering specific enantiomers. Among these strategies, Cu-catalyzed asymmetric allylic substitution (AAS) significant and irreplaceable, especially when it comes to use non-stabilized nucleophiles (pK > 25). Although AAS prochiral substrates has also been widely developed, methodologies involving racemic/meso are highly desirable, undergo dynamic processes give single enantiomer products. Inspired by pioneering work Alexakis, Feringa Gennari groups, continuously employed deracemization desymmetrization enriched In this review, we mainly focus on developments over past two decades, providing an explicit outline ligands employed, scope nucleophiles, underlying their practical applications.

Language: Английский

Citations

7

Application of Spectroscopy Techniques for Monitoring (Bio)Catalytic Processes in Continuously Operated Microreactor Systems DOI Open Access
Tamara Jurina,

Tea Sokač Cvetnić,

Anita Šalić

et al.

Catalysts, Journal Year: 2023, Volume and Issue: 13(4), P. 690 - 690

Published: March 31, 2023

In the last twenty years, application of microreactors in chemical and biochemical industrial processes has increased significantly. The use microreactor systems ensures efficient process intensification due to excellent heat mass transfer within microchannels. Monitoring concentrations microchannels is critical for a better understanding physical occurring micromixers microreactors. Therefore, there growing interest performing in-line on-line analyses and/or processes. This creates tremendous opportunities incorporation spectroscopic detection techniques into production processing lines various industries. this work, an overview current applications ultraviolet–visible, infrared, Raman spectroscopy, NMR, MALDI-TOF-MS, ESI-MS monitoring (bio)catalytic continuously operated presented. manuscript includes description advantages disadvantages analytical methods listed, with particular emphasis on chemometric used data analysis.

Language: Английский

Citations

11

Lab-scale flow chemistry? Just do it yourself! DOI

Laura Y. Vázquez-Amaya,

Guglielmo Coppola, Erik V. Van der Eycken

et al.

Journal of Flow Chemistry, Journal Year: 2024, Volume and Issue: 14(1), P. 257 - 279

Published: Feb. 23, 2024

Language: Английский

Citations

4

Discovery of Novel Chiral Indole Derivatives Containing the Oxazoline Moiety as Potential Antiviral Agents for Plants DOI

Yixian Huang,

Xiaolin Peng, Jinli Chen

et al.

Journal of Agricultural and Food Chemistry, Journal Year: 2024, Volume and Issue: 72(13), P. 6979 - 6987

Published: March 23, 2024

Potato virus Y (PVY) is an important plant that has spread worldwide, causing significant economic losses. To search for novel structures as potent antiviral agents, a series of chiral indole derivatives containing oxazoline moieties were designed and synthesized their anti-PVY activities evaluated. Biological activity tests demonstrated many compounds exhibited promising absolute configurations obvious distinctions in bioactivities. Notably, compound (S)-4v displayed excellent curative protective efficacy against PVY, with EC50 values 328.6 256.1 μg/mL, respectively, which superior to those commercial virucide ningnanmycin (NNM, 437.4 397.4 respectively). The preliminary mechanism was investigated determine the difference between two enantiomers 4v compounds. Molecular docking indicated stronger binding affinity coating proteins PVY (PVY-CP) (−6.5 kcal/mol) compared (R)-4v (−6.2 kcal/mol). Additionally, can increase chlorophyll content defense-related enzyme more effectively than its enantiomer. Therefore, this study provides basis development agricultural chemicals.

Language: Английский

Citations

4

Design, synthesis and Anti‐PVY activity of planar chiral thiourea derivatives incorporated with [2.2]Paracyclophane DOI

Liangzhen Shu,

Ya Lv,

Zhongyin Chen

et al.

Pest Management Science, Journal Year: 2024, Volume and Issue: 80(9), P. 4450 - 4458

Published: April 25, 2024

Abstract BACKGROUND Potato virus Y (PVY) is a prominent representative of plant viruses. It can inflict severe damage upon Solanaceae plants, leading to global dissemination and substantial economic losses. To discover new antiviral agents, class planar chiral thiourea molecules through the key step N ‐heterocyclic carbene‐catalyzed nitrile formation reaction was synthesized with excellent optical purities for evaluations against PVY. RESULTS The absolute configurations compounds exhibited obvious distinctions in anti‐PVY activities. Notability, compound ( S )‐ 4u remarkable curative activities PVY, half maximal effective concentration (EC 50 ) 349.3 μg mL −1 , which lower than that ningnanmycin (NNM) = 400.8 ). Additionally, EC value protective effects 146.2 superior NNM (276.4 Furthermore, mechanism‐of‐action enantiomers investigated molecular docking, defensive enzyme activity tests chlorophyll content tests. CONCLUSION Biological mechanism studies have demonstrated configuration target plays crucial role interaction PVY‐CP, enhancing defense enzymes affecting content. current study has provided significant insights into roles played by chiralities protection This paves way development novel green pesticides bearing purities. © 2024 Society Chemical Industry.

Language: Английский

Citations

4

Progress in the discovery and development of anticancer agents from marine cyanobacteria DOI Creative Commons
Hendrik Luesch,

Emma K. Ellis,

Qi-Yin Chen

et al.

Natural Product Reports, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

We describe the pipeline of anticancer agents from marine cyanobacteria, highlighting critical steps discovery towards development, including identification molecular target and mechanism action, solving supply problem.

Language: Английский

Citations

4

Flow chemistry-enabled asymmetric synthesis of cyproterone acetate in a chemo-biocatalytic approach DOI Creative Commons
Yajiao Zhang, Minjie Liu,

Xianjing Zheng

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 27, 2025

Language: Английский

Citations

0

Copper-catalyzed asymmetric allylic alkylation of racemic inert cyclic allylic ethers under batch and flow conditions DOI Creative Commons
Jun Li, Song Xiao, Yan Wang

et al.

Chemical Science, Journal Year: 2023, Volume and Issue: 14(16), P. 4351 - 4356

Published: Jan. 1, 2023

The Cu-catalyzed AAA reactions employing challenging racemic inert cyclic allylic ethers with sterically hindered Grignard reagents have been disclosed under batch and flow conditions.

Language: Английский

Citations

10

Accelerated flow synthesis of aripiprazole and brexpiprazole in environmentally benign solvents DOI Creative Commons
Bo Dong, Zheng Chen,

Hao Zhao

et al.

Green Synthesis and Catalysis, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0