Chemical constituents from the rhizomes of Smilax glabra and their antimicrobial activity

N/ACitations
Citations of this article
76Readers
Mendeley users who have this article in their library.

Abstract

Six new phenolic compounds, named smiglabrone A (1), smiglabrone B (2), smilachromanone (3), smiglastilbene (4), smiglactone (5), smiglabrol (6), together with fifty-seven known ones 7-63 were isolated from the rhizomes of Smilax glabra. Their structures were elucidated on the basis of extensive spectroscopic analyses, as well as by comparison with literature data. Twenty-seven of these compounds were obtained from and identified in the genus Smilax for the first time. The absolute configuration of (2S)-1,2-Odi-trans-p- coumaroylglycerol (43) was determined for the first time using the excitoncoupled circular dichroism (ECCD) method. Thirty isolated compounds were evaluated for their antimicrobial activity against three Gram-negative bacteria, three Gram-positive bacteria and one fungus, and the corresponding structure-activity relationships were also discussed. Eighteen compounds were found to be antimicrobial against the microorganisms tested and the minimum inhibitory concentrations (MIC) were in the range of 0.0794-3.09 mM. Among them, compound 1 showed antimicrobial activity against Canidia albicans with MIC value of 0.146 mM, which was stronger than cinchonain Ia with an MIC of 0.332 mM. Compounds 3 and 4 exhibited inhibitory activity against Staphylococcus aureus with MIC values of 0.303 and 0.205 mM, respectively. The results indicated that these antimicrobial constituents of this crude drug might be responsible for its clinical antimicrobial effect. © 1996-2013 MDPI AG (Basel, Switzerland).

Cite

CITATION STYLE

APA

Xu, S., Shang, M. Y., Liu, G. X., Xu, F., Wang, X., Shou, C. C., & Cai, S. Q. (2013). Chemical constituents from the rhizomes of Smilax glabra and their antimicrobial activity. Molecules, 18(5), 5265–5287. https://doi.org/10.3390/molecules18055265

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free