Design, Stereoselective Synthesis, and in Silico Evaluation of Novel Pyran‐Based <i>C</i> ‐Fucosides as Potential COX‐2 Inhibitors

C ‐Glycosides represent a class of structurally robust and pharmacologically significant molecules due to their stable anomeric C–C bonds and diverse biological profiles. Herein, a novel series of stereodefined C ‐fucosides, specifically (2 S ,3 S ,6 R )‐2‐methyl‐6‐aryl/aryloxy‐3,6‐dihydro‐2 H ‐pyran‐3‐ols ( 1 – 8 ), was efficiently synthesized from 3,4‐ O ‐carbonate‐L‐fucal via palladium‐catalyzed cross‐coupling with diverse aryltrifluoroborates. The reactions proceeded under mild conditions with excellent stereoselectivity, delivering high yields (78%–94%). All α ‐ C ‐glycosides were thoroughly characterized by nuclear magnetic resonance, high‐resolution mass spectrometry, and optical rotation. To evaluate their therapeutic potential, an integrated in silico assessment was conducted. ADMET profiling using SwissADME, BOILED‐Egg, and ProTox‐II predicted favorable pharmacokinetics and acceptable toxicity, identifying compounds 3 , 6 , and 8 as low‐toxicity candidates (Class 5). Molecular docking against cyclooxygenase‐2 (COX‐2), a validated anti‐inflammatory target, revealed strong binding affinities. Notably, compounds 7 and 2 exhibited docking scores comparable or superior to the reference drug rofecoxib (Vioxx), with MM/GBSA binding energies of −31.99 and −35.26 kcal/mol, respectively. Compound 7 demonstrated a unique binding mode involving hydrogen bonding with TYR355 and π – π stacking with TYR385 and TRP387, whereas compound 2 formed the most distinctive electrostatic interaction among all tested ligands. These results underscore the successful synthesis, structural characterization, and promising computational profile of these pyran‐based C ‐fucosides as potential COX‐2 inhibitors.

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Journal
European Journal of Organic Chemistry
Published
2026-01-07
DOI
https://doi.org/10.1002/ejoc.202501095
Primary Topic
Carbon dioxide utilization in catalysis
Type
article
Field-Weighted Citation Impact
0.00

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article

Design, Stereoselective Synthesis, and in Silico Evaluation of Novel Pyran‐Based C ‐Fucosides as Potential COX‐2 Inhibitors

Rebaz Anwar Omer, Damir A. Safin, Karwan Abdulmajed Othman, Musher Ismael Salih et al.
European Journal of Organic Chemistry
Carbon dioxide utilization in catalysis
article

Design, Stereoselective Synthesis, and in Silico Evaluation of Novel Pyran‐Based C ‐Fucosides as Potential COX‐2 Inhibitors

Rebaz Anwar Omer, Damir A. Safin, Karwan Abdulmajed Othman, Musher Ismael Salih, Hui Qin Yao, Jinhui Xie, Abdalla Ali Amin, Khdir Ahmed Othman
article en

Abstract

C ‐Glycosides represent a class of structurally robust and pharmacologically significant molecules due to their stable anomeric C–C bonds and diverse biological profiles. Herein, a novel series of stereodefined C ‐fucosides, specifically (2 S ,3 S ,6 R )‐2‐methyl‐6‐aryl/aryloxy‐3,6‐dihydro‐2 H ‐pyran‐3‐ols ( 1 – 8 ), was efficiently synthesized from 3,4‐ O ‐carbonate‐L‐fucal via palladium‐catalyzed cross‐coupling with diverse aryltrifluoroborates. The reactions proceeded under mild conditions with excellent stereoselectivity, delivering high yields (78%–94%). All α ‐ C ‐glycosides were thoroughly characterized by nuclear magnetic resonance, high‐resolution mass spectrometry, and optical rotation. To evaluate their therapeutic potential, an integrated in silico assessment was conducted. ADMET profiling using SwissADME, BOILED‐Egg, and ProTox‐II predicted favorable pharmacokinetics and acceptable toxicity, identifying compounds 3 , 6 , and 8 as low‐toxicity candidates (Class 5). Molecular docking against cyclooxygenase‐2 (COX‐2), a validated anti‐inflammatory target, revealed strong binding affinities. Notably, compounds 7 and 2 exhibited docking scores comparable or superior to the reference drug rofecoxib (Vioxx), with MM/GBSA binding energies of −31.99 and −35.26 kcal/mol, respectively. Compound 7 demonstrated a unique binding mode involving hydrogen bonding with TYR355 and π – π stacking with TYR385 and TRP387, whereas compound 2 formed the most distinctive electrostatic interaction among all tested ligands. These results underscore the successful synthesis, structural characterization, and promising computational profile of these pyran‐based C ‐fucosides as potential COX‐2 inhibitors.

European Journal of Organic ChemistryVol. 29(6)
China Three Gorges University (CN), University of Tyumen (RU), Western Caspian University (AZ), University of Raparin (IQ), Industrial University of Tyumen (RU), Koya University (IQ)
National Natural Science Foundation of China, China Three Gorges University, Natural Science Foundation of Hubei Province, Higher Education Discipline Innovation Project
Openalex Percentile: Top 94%
Carbon dioxide utilization in catalysis
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