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Sesquiterpenes and Monoterpenes from the Leaves and Stems of and Their Antibacterial Activity

Overview
Journal Molecules
Publisher MDPI
Specialty Biology
Date 2022 Feb 15
PMID 35164380
Authors
Affiliations
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Abstract

Two undescribed ether derivatives of sesquiterpenes, 1-ethoxycaryolane-1, 9-diol () and 2-ethoxyclovane-2, 9-diol (), and one new monoterpene glycoside, p-menthane-1,2,8-triol-4-O--D-glucoside (), were obtained, together with eight known compounds from the stems and leaves of . Their structures were elucidated by spectroscopic methods. Compounds - were evaluated for their potency against and clinical methicillin-resistant (MRSA). Among them, compound was weakly active against (MIC = 128 μg/mL), and compounds and exhibited good antibacterial activity against and MRSA (MICs = 2-8 µg/mL). A primary mechanism study revealed that compounds and could kill bacteria by destroying bacterial cell membranes. Moreover, compounds and were not susceptible to drug resistance development.

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