Chemical constituents from the lianas of gnetum cuspidatum blume; [Sebatian kimia dari lianas gnetum cuspidatum blume]

• Published in: Malaysian Journal of Analytical Sciences
• Main Author: Azmin N.F.N.; Ahmat N.; Zawawi N.K.N.A.
• Format: Article
• Language: English
• Published: Malaysian Society of Analytical Sciences 2016
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964211355&doi=10.17576%2fmjas-2016-2002-23&partnerID=40&md5=47b6b96fc6057bebd23b567dae2bb126

Gnetum is a genus of gymnosperms, the sole genus in the family Gnetaceae with approximately 40 species. Various species has been used for the treatment of rheumatitis, arthritis, bronchitis and asthma in folk medicines. Gnetum cuspidatum Blume is known throughout tropical Southeast Asia from Thailand, Vietnam, Cambodia, Malaysia, Sumatra, Java, and Borneo to the Maluku, Sulawesi and New Guinea. In this research work, a methanol extract of the lianas of Gnetum cuspidatum was subjected to vacuum liquid chromatography for fractionation. Later, several selective fractions had undergone the repetitive radial chromatography technique for further purification. Four known constituents categorized as stilbene type of compound have been successfully isolated and identified which include resveratrol (1), gnetucleistol C (2), gnetucleistol D (3) and gnemonol M (4). The structures and configuration of the reported compounds were elucidated on the basis of 2D-NMR correlations and comparison with the literature. © 2016, Malaysian Society of Analytical Sciences. All rights reserved.