is a tropical plant noticeable for its variegated leaves and exploited for various medicinal purposes. In this study, seven compounds, including three furanolabdane diterpenoids, i.e.
A new diterpenoid called rubesanolidic acid was discovered alongside six known compounds from the roots of a particular plant using column chromatography.
Their structures were confirmed through various spectroscopic analyses and comparisons with prior research data.
The extract showed significant -amylase inhibition activity, outperforming individual compounds, with rubesanolidic acid displaying the highest inhibition among the isolated compounds, suggesting the plant has potential as a source for antidiabetic agents.