Abstract A base-promoted hydrothiolation of activated ynamides using ethyl thioglycolate as the thiol partner, followed by intramolecular cyclization, enables a regioselective synthesis of functionalized 2-amidothiophenes. The method tolerates diverse functional groups, accommodates various…
Visual Abstract Found in many organisms, opines exhibit various structures and roles, described here. A system to classify them, a review and critical appraisal of their syntheses are proposed, showing their interest as natural precursors to various applications.
Abstract Protein aggregation is a pathological process associated with several human diseases termed proteinopathies, including neurodegenerative and metabolic disorders such as Alzheimer’s disease, Parkinson’s disease, type II diabetes, amyotrophic lateral sclerosis, and Huntington’s disease. In…
Abstract Chelating azides accelerate and enhance the efficiency of copper-catalyzed azide–alkyne cycloadditions (CuAAC), showing promise for intracellular applications. Spectroscopic studies showed that abundant thiol-containing glutathione (GSH) hinders the CuAAC reaction of chelating azides at…
Abstract The plant hormone jasmonoyl-isoleucine (JA-Ile) reallocates resources from growth towards induced defenses upon microbial or herbivore attacks or other environmental threats. JA-Ile and its precursor jasmonic acid (JA) undergo complex enzymatic turnover that shape hormonal dynamics for…
Abstract An in-principle exact working equation to compute electronic affinity and ionization Fukui functions is derived within the N - centered (Nc) ensemble extension of density functional theory (DFT). It circumvents the kernel derivative discontinuity problem of DFT for fractional electron…
Abstract Influencing electron distribution within a coordination complex bearing redox-active ligands offers the possibility to foster new reactivities. This redistribution can involve electrons but also protons or more elaborate chemical groups. Often perceived as a liability, chemical…
Abstract Ground-state electronic structure calculations using Kohn–Sham density functional theory (KS-DFT) offer an unprecedented balance between efficiency and accuracy, now paradigmatic to the fields of quantum chemistry and condensed matter physics. KS-DFT can be extended to model electronic…
Abstract The development of copper-responsive magnetic resonance imaging (MRI) probes remains limited by the scarcity of robust strategies capable of operating under physiological conditions and within complex biological environments. Here we report CuII-responsive MRI contrast agents (CAs) which…
Abstract Fromager and Lasorne [Electron. Struct. 6 025002 (2024)] have recently derived an in-principle exact Kohn–Sham density functional theory (KS-DFT) of electrons and nuclei, where the nuclear density and the (so-called conditional) electronic density are mapped onto a fictitious…
Abstract In this work we introduce a generalized flavor, in the sense of generalized Kohn-Sham density functional theory (gKS-DFT), of the recently derived local potential functional embedding theory (LPFET) (J. Chem. Theory Comput. 2025 21 10293), where the in-principle exact formalism of DFT is…
Abstract Spin crossover (SCO) is a well-established phenomenon by which transition-metal complexes can reversibly switch between low- and high-spin states, a phenomenon widely studied in materials chemistry. Recently, transition metal complexes that exhibit SCO have attracted increasing attention…
Abstract A chemical-to-electrochemical signal transduction is reported based on the tandem switching of a bis-acridinium macrocycle and a proflavine derivative. Molecular recognition triggers a simultaneous guest–host transformation converting the acridinium units into their redox-inactive acridane…
Abstract A highly diastereoselective synthesis of cationic permethylated α- and β-cyclodextrins (α-CDs and β-CDs), incorporating a quaternary ammonium unit bridging two adjacent glucose units, has been developed. This novel methodology provides access to amphipathic α-CDs equipped with an…
Tweet The IFM team is glad to announce that their recent investigation on the impact of AI-driven technologies on virtual screening is out. Our work suggests a new role for co-folding methods like Boltz2 in the drug discovery pipeline with potentially increased enrichments. It will be exciting to…
Abstract Laser-induced transitions from the perturbed J0+u , v′= 0 − 2 ∼ G 0+u , v′= 62 − 68 system to the X1Σ+g (0+g) ground state of dicopper have been investigated experimentally and theoretically. Upon excitation of specific rotational levels, long progressions to vibrational levels are…
Abstract Antimicrobial peptides (AMPs) are hoped to complement classical antibiotics in view of increasing microbial resistance. We investigated two members of a family of designed cyclic AMPs with different activity and selectivity. The cyclic hexapeptides are rich in arginine and tryptophan and…
Abstract The interaction between transition-metal ions and amyloid-β (Aβ) peptides is linked to the pathogenesis of Alzheimer's disease. X-ray absorption spectroscopy is widely used to investigate the coordination of these metal–peptide complexes, but exposure to synchrotron radiation can induce…
Abstract The inertness of copper(II) complexes can be critical for applications such as 64Cu positron emission tomography (PET). Sequence analysis of the simple peptidic amino terminal Cu(II)- and Ni(II)-binding (ATCUN) motif showed a significant improvement by introducing a tryptophan at position…
Abstract Metal-free β- and Z-selective hydrocyanation of terminal ynamides using TMSCN and TBAF is described. The transformation proceeds with excellent regio- and stereoselectivity, delivering exclusively Z-configured tertiary enamides. Treatment with TMSOTf promotes clean Z to E isomerization.…
