Results 41 to 50 of about 936,414 (160)

Beyond Simple Mimicry: Next‐Generation Geometric Architectures and Future Paradigms in Small‐Molecule and Macrocyclic Peptidomimetics

open access: yesAngewandte Chemie, Volume 138, Issue 40, 28 September 2026.
Peptide‐to‐Small Molecule Paradigm: Peptidomimetics have evolved from simple mimicry toward drug‐like scaffolds supported by increasing clinical successes. This Perspective highlights the geometric design principles—linear repetition, convergent fusion, and cyclization—defining the next‐generation peptidomimetic architectures capable of targeting ...
Jesang Lee   +5 more
wiley   +2 more sources

Phytochemical Investigation and In Vitro Assessment of Antioxidant, Anti‐Inflammatory and Immunomodulatory Properties of Melia azedarach Linn. Extract in Chicken Lymphocyte Model

open access: yesFlavour and Fragrance Journal, EarlyView.
Phytochemistry and biopotential of Melia azedarach Linn. ABSTRACT Melia azedarach Linn. (chinaberry), a medicinal plant native to tropical Asia, is a rich source of diverse bioactive compounds with reported pharmacological activities and promising therapeutic potential.
Priya Chand   +3 more
wiley   +1 more source

Indole Alkaloids from Psychoactive Mushrooms: Chemical and Pharmacological Potential as Psychotherapeutic Agents

open access: yesBiomedicines, 2023
Neuropsychiatric diseases such as depression, anxiety, and post-traumatic stress represent a substantial long-term challenge for the global health systems because of their rising prevalence, uncertain neuropathology, and lack of effective pharmacological
Erika Plazas, Nicoletta Faraone
doaj   +1 more source

Interactions between lactobacillus and yeast: A recent update

open access: yesFood Biomacromolecules, EarlyView.
Abstract Lactobacillus and yeast are microorganisms widely distributed in nature. Their interactions significantly impact fermentation processes, human health, and medical care. However, there is a lack of a systematic summary of the characteristics of these interactions, and the mechanisms underlying these interactions remain unclear.
Yang Chen   +10 more
wiley   +1 more source

Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization

open access: yesAngewandte Chemie, Volume 138, Issue 36, 1 September 2026.
The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu   +6 more
wiley   +2 more sources

Cigarette Smoke Extract, but Not Electronic Cigarette Aerosol Extract, Inhibits Monoamine Oxidase in vitro and Produces Greater Acute Aversive/Anhedonic Effects Than Nicotine Alone on Intracranial Self-Stimulation in Rats

open access: yesFrontiers in Neuroscience, 2022
Conventional tobacco cigarettes appear to have greater abuse liability than non-combusted products such as electronic cigarettes (ECs) and nicotine replacement therapy (NRT).
Andrew C. Harris   +8 more
doaj   +1 more source

Beyond a dual role: how Purpureocillium lilacinum reprograms citrus metabolism for integrated biocontrol and growth promotion

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Plants harbor complex microbial communities that are fundamental to their health and productivity. Among them, endophytic fungi such as Purpureocillium lilacinum establish mutualistic associations, offering dual benefits as plant growth promoters and biocontrol agents.
Sana Bouzembila   +5 more
wiley   +1 more source

Metal‐Catalyzed Benzannulation: Recent Advances in Catalyst Design, Mechanistic Insights, and Aromatic Framework Construction

open access: yesThe Chemical Record, EarlyView.
This review offers a contemporary overview of metal‐catalyzed benzannulation (2018–present) encompassing transition, main‐group, post‐transition, and rare‐earth‐metal catalysts. It systematically highlights catalyst design, mechanistic insights, stereo‐ and regioselectivity, and synthetic applications toward aromatic and heteroaromatic scaffolds, while
Sana Jamshaid   +5 more
wiley   +1 more source

Synthesis of Large‐ and Medium‐Sized Heterobiaryl Atropisomeric Rings and Atropopeptides by Catalytic Intramolecular SNAr

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 45, 2 November 2026.
Catalytic, intramolecular N‐heterocycle arylation by nucleophilic aromatic substitution (SNAr) is now available for synthesis of highly strained macrocycles and medium‐sized heterobiaryl atropisomeric rings, including atropopeptides. Key to the approach is the ability to generate a strong base catalytically, taking advantage of base‐embedding ...
Alireza Abbasi Kejani   +7 more
wiley   +1 more source

Palladium(II)-Catalyzed Asymmetric Tandem Cyclization of 2‑Aminoaryl Alkynones: An Approach to Chiral 1,2,3,4-Tetrahydro-β-carbolines

open access: yes, 2018
A Pd­(OAc)2-catalyzed asymmetric cyclization of 2-aminoaryl alkynones involving an intramolecular trans-aminopalladation of alkyne and 1,2-addition to the carbonyl group tandem processes was developed.
Junjie Chen   +5 more
core   +1 more source

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