Annonaceous acetogenins have a wide range of potential biological activities. The development of simple and diversity-oriented approaches to their synthesis is therefore important. We have achieved the first total synthesis of squafosacin F and assigned its absolute configuration. The key steps were an acid-mediated tandem intramolecular double cyclization to build the hydroxy-flanked mono-tetrahydrofuran core and decoration with the desired functionalities of the target natural product highly stereoselective reactions.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076243 | PMC |
| http://dx.doi.org/10.1039/c9ra09762g | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluation of Jaundice in Adults.
Am Fam Physician
January 2025
University of Florida College of Medicine, Gainesville.
Jaundice is an indication of hyperbilirubinemia and is caused by derangements in bilirubin metabolism. It is typically apparent when serum bilirubin levels exceed 3 mg/dL and can indicate serious underlying disease of the liver or biliary tract. A comprehensive medical history, review of systems, and physical examination are essential for differentiating potential causes such as alcoholic liver disease, biliary strictures, choledocholithiasis, drug-induced liver injury, hemolysis, or hepatitis.
View Article and Find Full Text PDFPeroxycarbenium-Mediated Asymmetric Synthesis of 1,2-Dioxanes and 1,2-Dioxolanes.
J Am Chem Soc
January 2025
BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, Orsay 91400, France.
The endoperoxide scaffold is found in numerous natural products and synthetic substances of pharmaceutical interest. The main challenge to their synthetic access remains the preparation of chiral compounds due to the weakness of the peroxide bond, which limits the scope of available or applicable methods. Here, we demonstrate how peroxycarbenium species can be trapped by silylated nucleophiles with high enantioselectivities and diastereoselectivities when applicable, using a chiral imidophosphorimidate (IDPi) as a catalyst.
View Article and Find Full Text PDFExploration and verification of the therapeutic mechanism of shenfu injection in sepsis-induced myocardial injury.
PLoS One
January 2025
Intensive Care Unit, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China.
Background: Shenfu injection (SFI), derived from a traditional Chinese medicine (TCM) prescription, is an effective drug for the treatment of sepsis-induced myocardial injury (SIMI) with good efficacy, but its exact therapeutic mechanism remains unclear.
Methods: SwissTargetPrediction and GeneCards database were used to obtain relevant targets for SFI and SIMI. STRING 11.
Kidney and gallbladder stones and the risk of prostate cancer: Results from the EPICAP study.
PLoS One
January 2025
UVSQ, Inserm, Gustave Roussy, CESP, Université Paris-Saclay, Villejuif, France.
Background: Prostate cancer remains the most frequent cancer among men, representing a significant health burden. Despite its high morbidity and mortality rates, the etiology of prostate cancer remains relatively unknown, with only non-modifiable established risk factors. Chronic inflammation has emerged as a potential factor in prostate carcinogenesis.
View Article and Find Full Text PDFBCAA interactions: how do they influence broiler performance, intestinal morphometry, lipid profile, and liver health?
Arch Anim Nutr
January 2025
Department of Animal Science, Federal University of Viçosa, Viçosa, MG, Brazil.
An experiment was conducted to assess the effects of the BCAA and their interactions on performance, carcass composition, lipid metabolism, liver health, and intestinal morphometry in broiler chickens. Male chickens ( = 1080) were randomly assigned into floor pens in a 3 × 3 factorial design with 3 dietary ratios of SID Leu:Lys (110, 150, and 190%), and 3 dietary ratios of SID Ile-Val:Lys (68-77, 78-87, and 88-97%). Performance parameters were assessed from 1 to 35 days of age.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!