Abstract
AbstractFive compounds including three triterpenoids and two sesquiterpenes were isolated from Alimatis rhizoma. Their chemical structures were determined to be alisol B 23-acetate (1), alisol C 23-acetate (2), alisol B (3), alismol (4) and alismoxide (5) by various spectroscopic analysis, including 1H-NMR, 13C-NMR, HMBC and MS spectra. Compounds 1–5 were evaluated for their antibacterial potential against 6 strains of bacteria including three drug-resistant bacteria (one methicillin-resistant Staphylococcus aureus strain CCARM 3506, two quinolone-resistant Staphylococcus aureus strains CCARM 3505 and CCARM 3519), two G+ bacteria (Streptococcus mutans KCTC 3289 and Staphylococcus aureus KCTC 209) and one G− bacterium (Escherichia coli KCTC 1924). Compounds 1–5 showed strong antibacterial effect against S. mutans KCTC 3289, their MIC values were 2, 64, 16, 32 and 32 μg/mL, respectively. The antibacterial activity results of compounds 1–5 against these bacteria were reported for the first time. The results indicate that Alimatis rhizoma are potential sources of new antibacterial material.
Funder
Natural Science Foundation of Jilin Province
Publisher
Springer Science and Business Media LLC
Subject
Organic Chemistry,General Biochemistry, Genetics and Molecular Biology
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