This work investigates the addition of monosaccharides to marketed drugs to improve their pharmacokinetic properties for oral absorption. To this end, a set of chloromethyl glycoside synthons were developed to prepare a variety of glycosyloxymethyl-prodrugs derived from 5-fluorouracil, thioguanine, propofol and losartan. Drug release was studied in vitro using β-glucosidase confirming rapid conversion of the monosaccharide prodrugs to release the parent drug, formaldehyde and the monosaccharide. To showcase this prodrug approach, a glucosyloxymethyl conjugate of the tetrazole-containing drug losartan was used for in vivo experiments and showed complete release of the drug in a dog-model.
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http://dx.doi.org/10.1002/chem.202103910 | DOI Listing |
Molecules
July 2023
Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
DC. and Willd. have different clinical efficacies, with the former typically used to treat typhoid fever and the latter mainly used to clear liver heat.
View Article and Find Full Text PDFAppl Biochem Biotechnol
July 2023
Department of Kaychikitsa, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
Hyperglycemia is the hallmark of diabetes, which is a collection of related metabolic disorders. Over time, diabetes can cause a variety of problems, including cardiovascular disease, nephropathy, neuropathy, and retinopathy. Ethanolic novel polyherbal extract (PHE) was prepared by mixing equal amounts of the following ingredients: Terminalia chebula Retz.
View Article and Find Full Text PDFChemistry
February 2022
Synthetic Organic Chemistry Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525, AJ Nijmegen, The Netherlands.
This work investigates the addition of monosaccharides to marketed drugs to improve their pharmacokinetic properties for oral absorption. To this end, a set of chloromethyl glycoside synthons were developed to prepare a variety of glycosyloxymethyl-prodrugs derived from 5-fluorouracil, thioguanine, propofol and losartan. Drug release was studied in vitro using β-glucosidase confirming rapid conversion of the monosaccharide prodrugs to release the parent drug, formaldehyde and the monosaccharide.
View Article and Find Full Text PDFBiol Pharm Bull
January 2022
Department of Pharmacy, Daping Hospital, Army Medical University.
To investigate the mechanism of the protective effect of tetrahydroxystilbene glucoside (TSG) on nerve cells, an injury model induced by rotenone in PC12 cells was constructed. Cell viability was detected by using cell counting kit-8 (CCK8) assay. Apoptosis was detected by using flow cytometry.
View Article and Find Full Text PDFAntioxidants (Basel)
March 2021
Department of Pharmacognosy, Faculty of Pharmacy, The British University in Egypt (BUE), Cairo 11837, Egypt.
Polyphenols are known dietary antioxidants. They have recently attracted considerable interest in uses to prevent skin aging and hyperpigmentation resulting from solar UV-irradiation. (L.
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