Themed collection Articles behind our 2025 journal covers

Recent breakthroughs in ring-opening annulation reactions of aziridines
Aziridine is a fascinating core which enables synthesis of diverse N-heterocycles comprising natural product analogs and pharmaceutical candidates.
Org. Biomol. Chem., 2025,23, 2967-2996
https://doi.org/10.1039/D4OB01577K

Nitrogen-bridgehead compounds: overview, synthesis, and outlook on applications
Nitrogen bridgehead (NBH) is present in many natural products, but studies of synthetic analogues remain unexplored. This review gives an overview of NBH for potential applications.
Org. Biomol. Chem., 2025,23, 1479-1532
https://doi.org/10.1039/D4OB01589D
NMR and molecular simulation studies on the structure elucidation of the amphotericin B ion channel using 13C and 19F labelling
Solid-state NMR spectra of 13C- and 19F-labelled amphotericin B reveal that seven molecules form an ion channel assembly with ergosterol. Molecular dynamics simulations show this channel generates ion currents consistent with experiments.
Org. Biomol. Chem., 2025,23, 1233-1252
https://doi.org/10.1039/D4OB01468E
A review of the synthetic strategies toward the antiviral drug tecovirimat
Synthesis approaches for tecovirimat API, highlighting pros and cons, summarizing processes for key intermediates, including cycloheptatriene, and evaluating feasibility, efficiency, and environmental sustainability.
Org. Biomol. Chem., 2025,23, 239-254
https://doi.org/10.1039/D4OB01092B

Fluorescent nucleobase analogue for cellular visualisation and regulation of immunostimulatory CpG oligodeoxynucleotides
A fluorescent thymine analogue, ThexT, enables visualisation of immunostimulatory CpG oligonucleotides in macrophages. Its incorporation site affects TLR9 activation, offering insights into immune response modulation and intracellular DNA tracking.
Org. Biomol. Chem., 2025,23, 3535-3541
https://doi.org/10.1039/D4OB02034K

β-meso-Fused pyrene–porphyrin scaffolds with panchromatic absorption features
A straightforward synthetic strategy toward three β-meso-fused porphyrin–pyrene conjugates is presented. The five-ring fused molecules possess intriguing absorption properties and electronics, which are probed spectroscopically and by theory.
Org. Biomol. Chem., 2025,23, 793-798
https://doi.org/10.1039/D4OB01447B
Purine nucleosides as selective inhibitors of butyrylcholinesterase – a multidisciplinary study
A multidisciplinary study of purine nucleoside selective BuChE inhibitors, covering docking, synthesis, biological evaluation and cytotoxic assays.
Org. Biomol. Chem., 2025,23, 3845-3859
https://doi.org/10.1039/D4OB01657B

Identification of 6,8-ditrifluoromethyl halogenated phenazine as a potent bacterial biofilm-eradicating agent
6,8-Ditrifluoromethyl halogenated phenazine potently eradicates Gram-positive bacterial biofilm communities that demonstrate innate tolerance to all classes of conventional antibiotics.
Org. Biomol. Chem., 2025,23, 3342-3357
https://doi.org/10.1039/D4OB02011A
Mapping the molecular mechanism of zinc catalyzed Suzuki–Miyaura coupling reaction: a computational study
A redox-neutral mechanism for Zn-catalyzed Suzuki–Miyaura cross coupling reaction.
Org. Biomol. Chem., 2025,23, 2828-2835
https://doi.org/10.1039/D4OB01170H
Reductive amination of triglycerides to fatty amines over a titanium oxide-supported Pt–Mo catalyst
Reductive amination of triglycerides under mild conditions was achieved using a titanium oxide-supported Pt–Mo catalyst. Various triglycerides including cooking oil are transformed into their corresponding fatty amines.
Org. Biomol. Chem., 2025,23, 2638-2644
https://doi.org/10.1039/D4OB01843E

Removable dialkoxybenzyl linker for enhanced HPLC purification of peptide hydrazides
A dialkoxybenzyl linker for the synthesis of peptide hydrazides, with a selective cleavage property, enhances HPLC purification efficiency.
Org. Biomol. Chem., 2025,23, 2630-2637
https://doi.org/10.1039/D4OB01918K

Simple and versatile electrochemical synthesis of highly substituted 2,1-benzisoxazoles
A simple, sustainable and scalable electrochemical method providing direct access to a highly diverse range of 3-(acylamidoalkyl)-2,1-benzisoxazoles by cathodic reduction of widely accessible nitro arenes was established.
Org. Biomol. Chem., 2025,23, 2391-2399
https://doi.org/10.1039/D4OB01875C
Continuous-flow synthesis of carboxylic acids from alcohols via platinum and silicon dioxide-catalyzed hydrogen peroxide oxidation
Selective oxidation of alcohols was achieved by analyzing the yields of carboxylic acids as a function of weight hourly space velocity.
Org. Biomol. Chem., 2025,23, 2125-2132
https://doi.org/10.1039/D4OB01668H
DMTSF-mediated electrophilic cyclization for the synthesis of 3-thiomethyl-substituted benzo[b]furan derivatives
A protocol for synthesizing 3-thiomethyl substituted benzofuran derivatives via cyclization of 2-alkynyl anisole using DMTSF as the electrophile was developed.
Org. Biomol. Chem., 2025,23, 1851-1857
https://doi.org/10.1039/D4OB00958D
HFIP mediated oxime ether synthesis: a metal, base and additive free approach
A metal, base and additive free C–O bond formation strategy for the synthesis of oxime ethers from various oxime derivatives and tertiary and secondary aryl alcohols in the presence of HFIP at 30 °C is developed.
Org. Biomol. Chem., 2025,23, 1622-1626
https://doi.org/10.1039/D4OB01556H

Syntheses of differentially fluorinated triazole-based 1-deoxysphingosine analogues en route to SphK inhibitors
Stereoselective syntheses of 16 triazole-based 1-deoxysphingosine dual SphK inhibitors incorporating different systematic modifications highlight heptafluoropropyl and guanidinium motifs towards improving SphK2 inhibition.
Org. Biomol. Chem., 2025,23, 1104-1111
https://doi.org/10.1039/D4OB01656D

Recognition of mixed-sequence double-stranded DNA regions using chimeric Invader/LNA probes
Heteroduplexes comprised of densely intercalator-modified oligodeoxyribonucleotides and LNAs (locked nucleic acids) enable highly specific mixed-sequence recognition of double-stranded DNA regions.
Org. Biomol. Chem., 2025,23, 619-628
https://doi.org/10.1039/D4OB01403K

An albumin unfolding and refolding cycle induced by a time-controlled pH jump
An unfolding–refolding cycle of albumin is accomplished by using a pH jump based on the time-dependent decarboxylation of nitroacetic acid.
Org. Biomol. Chem., 2025,23, 118-125
https://doi.org/10.1039/D4OB01289E
About this collection
This collection brings together all of the research and review-type articles behind our 2025 journal covers, showcasing the wide range of research found in the journal. If your article has been accepted for publication, and you are interested in highlighting your research on one of our covers, please do contact the Editorial Team for further information.