NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2024, Vol. 36 ›› Issue (9): 1537-1541. doi: 10.16333/j.1001-6880.2024.9.009

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Study on the compounds with α-glucosidase inhibitory activity from leaves of Ficus esquiroliana

DAI De-cai*,ZHANG Xiao-xiao,XU Xiao-juan,LI Zi-ang,DONG Ling-yan,CHEN Qing-xia,ZHANG Rui   

  1. DAI De-cai*,ZHANG Xiao-xiao,XU Xiao-juan,LI Zi-ang,DONG Ling-yan,CHEN Qing-xia,ZHANG Rui
  • Online:2024-09-25 Published:2024-09-25

Abstract:

This study aims to investigate the chemical constituents from the leaves Ficus equiroliana H.Lév,together with their α-glucosidase inhibitory activities.Nine compounds were isolated and purified from the 95% ethanol extract of the title plant by using systematic separation methods,including silica gel,ODS,Sephadex LH-20  column chromatography  and semi-preparative liquid chromatography.Their structures were identified as N-trans-ferulic-L-proline methyl ester (1),N-p-coumaroyltyramine (2),3′,4′,5′-trimethoxycinnamyl alcohol (3),lcariside H1 (4),(-)-dendrolactone (5),3-hydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone (6),trans-ferulic acid (7),sinapyl alcohol (8) and (E)-p-coumaric acid (9) by NMR and HR-ESI-MS.Compound 1 is a new compound,compounds 2-6 and 8 were isolated for the first time from the leaves of F. equiroliana.Compounds 1-6 and 8 showed α-glucosidase inhibitory activities with IC50 values of 76.25-263.18 μmol/L.

Key words: Ficus equiroliana, chemical constituents, phenylpropanoids, α-glucosidase

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