Intermedianin, a new furofuran lignan from the leaves of Knema intermedia Warb

Phytochemical investigation of the leaves of Knema intermedia has led to the isolation of a new furofuran lignan, intermedianin 1 together with five known lignans, alpha-cubebin 2, beta-cubebin 3, bicubebin A 4, bicubebin B 5, and bicubebin C 6. The characterisation and structural elucidation of the...

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Bibliographic Details
Published in:NATURAL PRODUCT RESEARCH
Main Authors: Salihu, Abubakar Siddiq; Salleh, Wan Mohd Nuzul Hakimi Wan; Barker, David; Arzmi, Mohd Hafiz; Ab Ghani, Nurunajah; Rasol, Nurulfazlina Edayah
Format: Article; Early Access
Language:English
Published: TAYLOR & FRANCIS LTD 2024
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Online Access:https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001208037000001
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Summary:Phytochemical investigation of the leaves of Knema intermedia has led to the isolation of a new furofuran lignan, intermedianin 1 together with five known lignans, alpha-cubebin 2, beta-cubebin 3, bicubebin A 4, bicubebin B 5, and bicubebin C 6. The characterisation and structural elucidation of the isolated compounds were established by extensive spectroscopic data analysis and comparison with literature data. The antifungal activity was tested using the broth microdilution assay, whereas the microbial biofilms were determined using a semi-quantitative static biofilm. Compound 1 exhibited activity against C. albicans, C. lusitanae, and C. auris, (each with MIC/MFC value 250 mu g/mL) and increased the biofilm of C. auris (64.07 +/- 3.83%) and Candida lusitanae (62.90 +/- 3.41%) when treated with 500 mu g/mL.
ISSN:1478-6419
1478-6427
DOI:10.1080/14786419.2024.2345758