A New Flavonoid from Malaysian Dipterocarpus cornutus

Wan Zuraida Wan Mohd Zain (Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA, Malacca Branch. Jasin Campus, 77300 Merlimau, Malacca, Malaysia Pejabat Program Pra Pengajian Tinggi, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia)
Liliwirianis Nawi (Faculty of Applied Sciences, Universiti Teknologi MARA, Pahang Branch, Jengka Campus, 26400 Bandar Tun Abdul Razak Jengka, Pahang, Malaysia)
Norizan Ahmat (Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA, 42300 Puncak Alam, Selangor, Malaysia)
Che Puteh Osman (Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA, 42300 Puncak Alam, Selangor, Malaysia)
Yaya Rukayadi (Faculty of Food Science and Technology and Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia)

Indonesian Journal of Chemistry
Vol 21, No 5 (2021)

Dipterocarpus cornutus Dyer is commonly known as ‘keruing’. It belongs to the family of Dipterocarpaceae, an important timber family in South East Asia. D. cornutus is listed as critically endangered on IUCN Red List. Since no comprehensive study has been documented on the chemical constituents of D. cornutus, there is an urgent need to study this plant comprehensively. Phytochemical study of the stem bark of D. cornutus afforded a new flavonoid (1) and nine known compounds, which consist of flavonoids (2, 3), oligostilbenoids (4, 5, 7, 8, 9, 10), and coumarin (6). The finding of the study contributes to the chemotaxonomic differentiation in the plants of the tribe Dipterocarpae.