Aniline-containing derivatives of parthenolide: Synthesis and anti-chronic lymphocytic leukaemia activity

Synthesis and Antimicrobial Evaluation of (+)-Neoisopulegol-Based Amino and Thiol Adducts

A library of neoisopulegol-based amino and thiol adducts was developed from (+)-neoisopulegol, derived from commercially available (-)-isopulegol. Michael addition of different nucleophiles towards its highly active α,β-unsaturated γ-lactone motif was accomplished, resulting in diverse amino and thiol analogs in stereoselective reactions. Then, the lactone ring was opened, with NH3 and benzylamine furnishing primary amide and N-benzyl-substituted amide derivatives, respectively. The in vitro antimicrobial effect of prepared compounds was also explored. The results revealed that naphthylmethyl-substituted β-aminolactone, the most promising compound, displayed selective inhibition for the Gram-positive bacteria S. aureus with an MIC (minimum inhibitory concentration) value of 12.5 μM. A docking study was performed to interpret the obtained results.

Natural sesquiterpene lactones in prostate cancer therapy: mechanisms and sources

Prostate cancer is a condition characterized by the uncontrolled proliferation of abnormal cells inside the prostate gland, part of the male reproductive system. Prostate cancer is the most common cancer among men and the second largest cause of cancer-related mortality in the United States. A novel approach to treating advanced Prostate cancer has emerged, attributable to the enhanced effectiveness of new pharmacological agents sourced from natural origins and this has led to increased rates of global existence and progression-free survival. Sesquiterpene lactones and their derivatives are now used worldwide to create and manufacture innovative cancer therapeutics. A thorough search was performed according to PRISMA guidelines in SciMed, PubMed, and Google Scholar, focusing on publications published from 1999 to 2024. The safety, efficacy, and bioactivity of sesquiterpene lactones must be evaluated via clinical trials, in vitro studies, and in vivo research and data was rigorously gathered and validated to verify its accuracy and usefulness. Prostate cancer may be treated far more effectively using naturally occurring sesquiterpene lactone molecules. The most prominent sesquiterpene lactones identified were artemisinin, alantolactone, costunolide, helenalin, cynaropicrin, parthenolide, and inuviscolide, which are originated from botanical sources like Ferula penninervis, Tanacetum argenteum, Artemisia kopetdaghensis, Cichorium intybus, Carpesium divaricatum, and Leptocarpha rivularis. Numerous studies indicated that sesquiterpene lactones may treat cancer by modifying many cellular signaling pathways, including PI3K/AKT, MAPK, JNK, NF-κB, TNF-α, and STAT3. Sesquiterpene lactones were shown to be significant in suppressing the proliferation of prostate cancer cell lines (DU-145, PC-3, LNCaP, MR49F, and BPH-1) in both laboratory and clinical settings.

Chiral iodine-catalyzed asymmetric oxyamination of unactivated olefins

In this paper, chiral aryl iodides were used for the first time to catalyze the formation of C-O and C-N bonds of inactive olefins to obtain optically active aminolactone derivatives. The reaction is compatible with various substituted alkenyl carboxylic acid substrates. This method usually shows high activity and enantioselectivity, with a yield of up to 83% and an ee of up to 99%. It is recovery and reuse of chiral aryl iodide catalyst CIC4 showed almost no loss in product yield and enantioselectivity after 3 runs.

Trends in parthenolide research over the past two decades: A bibliometric analysis

Parthenolide (PTL) is a new compound extracted from traditional Chinese medicine. In recent years, it has been proven to play an undeniable role in tumors, autoimmune diseases, and inflammatory diseases. Similarly, an increasing number of experiments have also confirmed the biological mechanism of PTL in these diseases. In order to better understand the development trend and potential hot spots of PTL in cancer and other diseases, we conducted a detailed bibliometric analysis. The purpose of presenting this bibliometric analysis was to highlight and inform researchers of the important research directions, co-occurrence relationships and research status in this field. Publications related to PTL research from 2002 to 2022 were extracted on the web of science core collection (WoSCC) platform. CiteSpace, VOSviewers and R package "bibliometrix" were applied to build relevant network diagrams. The bibliometric analysis was presented in terms of performance analysis (including publication statistics, top publishing countries, top publishing institutions, publishing journals and co-cited journals, authors and co-cited authors, co-cited references statistics, citation bursts statistics, keyword statistics and trend topic statistics) and science mapping (including citations by country, citations by institution, citations by journal, citations by author, co-citation analysis, and keyword co-occurrence). The detailed discussion of the results explained the focus and latest trends from the bibliometric analysis. Finally, the current status and shortcomings of the research field on PTLwere clearly pointed out for reference by scholars.