Phytochemical and pharmacological profile of genus A review of the recent literature.

In tropical Southeast Asia, is the most economically important tree and the largest genus in the Dipterocarpaceae family. It comprises about 150-200 species, of which majority are distributed in Malaysia, with others found in Sumatra and Borneo (Kalimantan) in Indonesia. Research on the chemical constituents of plants has been ongoing for many years.

approach: biological prediction of nordentatin derivatives as anticancer agent inhibitors in the cAMP pathway.

A combination of computational techniques has been carried out to predict the binding of nordentatin derivatives based on pyranocoumarin semi-synthesis with the target protein from the expression of the PDE4B gene. The inhibition of the cAMP pathway is the main target of anti-cancer drugs, which is responsible for uncontrolled cell division in cancer. Modeling was done using a combination of semi-empirical methods and the density functional theory (PM3-DFT/6-31G*/B3LYP) to obtain the optimal structure of a small ligand that could be modeled.

A new pyrano coumarin from roots displaying dual inhibition against α-glucosidase and free radical.

A new pyrano coumarin, identified as excavatin A () together with two known compounds nordentatin () and binorpocitrin () was isolated from the 95% EtOH extract of . All structures were elucidated by using spectroscopy methods such as extensive NMR and HR-FAB-MS spectrometry. All the isolated compounds were tested on antidiabetes activity by using α-glucosidase inhibition assay and the antioxidant activity by DPPH assay.