Several families of naturally occurring -alkylated dihydrochalcones display a broad range of biological activities, including antimicrobial and cytotoxic properties, depending on their alkylation sidechain. The catalytic Friedel-Crafts alkylation of the readily available aglycon moiety of neohesperidin dihydrochalcone was performed using cinnamyl, benzyl, and isoprenyl alcohols. This procedure provided a straightforward access to a series of derivatives that were structurally related to natural balsacones, uvaretin, and erioschalcones, respectively. The antibacterial and cytotoxic potential of these novel analogs was evaluated in vitro and highlighted some relations between the structure and the pharmacological properties of alkylated dihydrochalcones.
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http://dx.doi.org/10.3390/antibiotics10060620 | DOI Listing |
Molecules
May 2024
Institut de Chimie de Nice, UMR 7272, Université Côte d'Azur, Parc Valrose, 06108 Nice, France.
Fitoterapia
July 2024
Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address:
Traditional medicinal plants have been used for centuries for their immunomodulatory properties and therapeutic potentials. The present study aims to investigate the immunomodulatory constituents from traditional medicinal plant, Tinospora cordifolia (willd.).
View Article and Find Full Text PDFNat Prod Res
December 2023
URCATech, ICMR, CNRS UMR 7312, URCA Bat. 18 B.P. 1039, 51687, Reims, Cedex 2, France.
A hemisynthesis '' reaction of (thio)barbituric acids with an α,β-unsaturated aldehyde using perillaldehyde from essential oil, afforded chromeno-pyrimidine derivatives and . The reaction was carried out in water and water/ethanol medium without a catalyst. The obtained pyrimidines were identified by their spectral H,C, Dept-135, HMBC, HSQC, COSY, and NOESY 2D.
View Article and Find Full Text PDFJ Agric Food Chem
December 2023
Department of Chemistry, University of Turku, Turku, FI-20014, Finland.
Ten dimeric procyanidin (PC) analogs were hemisynthesized from catechin or epicatechin and from five different aldehydes using the same mechanism that produces the important acetaldehyde-mediated adducts of proanthocyanidins (PAs) and anthocyanins in red wine. Protein precipitation capacity (PPC), octanol-water partition coefficient (log ) and stability of the PC analogs were determined. The emphasis was on the PPC because it has been shown to correlate with anthelmintic activity against gastrointestinal nematodes in ruminants and with other beneficial bioactivities in animals, as well.
View Article and Find Full Text PDFJ Chromatogr A
August 2023
iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal.
Replacement of synthetic colorants with natural ones is a current marketing trend. Nevertheless, the naturally occurring blue color is rare compared to other colours. In this work, centrifugal partition chromatography (CPC) process was developed as a more efficient and sustainable alternative to reversed phase column chromatography (RP-CC) for the preparative-scale purification of portisins.
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