Mutiniside, new antioxidant phenolic glucoside from Abutilon muticum

Abstract

Mutiniside (1), new phenolic glucoside, and the flavonoidal glucoside cephacoside (2) have been isolated from the n-BuOH soluble fraction, along with lupeol (3), β-sitosterol (4), stigmasterol (5), methyl-4-hydroxybenzoate (6), taraxacin (7), ursolic acid (8), and β-sitosterol-3-O-β-d-glucopyranoside (9), have been isolated from the EtOAc soluble fraction of Abutilon muticum. Compounds 2–9 are reported for the first time from this species. Compound 1 showed significant antioxidant activity while moderate inhibitory activity was observed against the enzyme lipoxygenase.

Keywords:

• Abutilon muticum
• Malvaceae
• phenolic glucoside
• antioxidant

Acknowledgements

We are grateful to Higher Education Commission, Islamabad, Pakistan for financial support to S. Ali under the Indigenous 5000 Ph.D. Fellowship Program.