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Introducing a second chiral center on our previously described 1,2,4-triazole, allowed us to increase diversity and elongate the 'C-terminal part' of the molecule. Therefore, we were able to explore mimics of the substance P analogs described as inverse agonists. Some compounds presented affinities in the nanomolar range and potent biological activities, while one exhibited a partial inverse agonist behavior similar to a Substance P analog.
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http://dx.doi.org/10.1016/j.bmcl.2016.04.003 | DOI Listing |
Carbohydr Polym
November 2025
Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Campus Kulak Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium. Electronic address:
Cellulose nanocrystals (CNCs) have emerged as promising candidates for chiroptical functional materials due to their ability to form cholesteric liquid crystals with tunable periodicity. The quality of the final cholesteric phase is influenced by the nucleation, growth and coalescence mechanism of the initial droplets, known as tactoids. Current research focuses on understanding the size and morphological transformations of these tactoids, to gain deeper insights into their dynamic behavior and, in turn, to better control the final properties of novel photonic materials.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Laboratory for Fundamental BioPhotonics (LBP), Institute of Bioengineering (IBI), School of Engineering (STI), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland.
Life requires chemical chiral specificity. The emergence of enantioselectivity is unknown but has been linked to diverse scenarios for the origin of life, ranging from an extraterrestrial origin to polarization-induced effects, and magnetic field-induced mineral templating. These scenarios require an originating mechanism and a subsequent enhancement step, leading to widespread chiral specificity.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P.R. China.
Chiral metal halide perovskites (CMHPs) are a promising class of chiroptical materials with significant potential applications in chiral-optoelectronic and chiral-spintronic devices. However, their chirality induction generally stems from the incorporation of chiral ligands, which constitutes compositional diversity and functional versatility. Herein, we report a significant chiral expression resulting from two distinct mechanisms: chirality transfer induced by chiral organic cations and mirror symmetry breaking driven by stereochemically active lone pairs, both contributing to controlled chirality induction.
View Article and Find Full Text PDFChempluschem
September 2025
Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, 669-1330, Hyogo, Japan.
Two types of optically active cyclic compounds based on planar chiral [2.2]paracyclophane skeleton are synthesized. These compounds comprise tetrasubstituted [2.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
August 2025
CINBIO, Universidade de Vigo, Department of Physical Chemistry, Campus Universitario As Lagoas-Marcosende, Universidade de Vigo, Vigo, 36310, Spain.
Chiral organic-inorganic hybrid metal halides have emerged as a promising class of materials for spin-controlled optical and optoelectronic effects and related applications. Chiral hybrid metal halides generally crystallize in non-helical space groups. Herein, we report the discovery of zero-dimensional (0D) chiral (R/S-MBA)SnBr (MBA: methylbenzylammonium cation) single crystals with enantiomorphic lattice helicity.
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