Isolated Triterpenes from Stingless Bee Lisotrigona furva Propolis in Vietnam

Authors : Le Nguyen THANH, Vu Thi Kim OANH, Ha Thi THOA, Diep Thi Lan PHUONG, Nguyen Thi Phuong LIEN, Tran Huu GIAP, Nguyen Thi Minh HANG, Nguyen Van HUNG, Vassya BANKOVA

Pages : 73-73

View : 15 | Download : 9

Publication Date : 2018-12-08

Article Type : Conference Paper

Abstract :Stingless bees of the genus Lisotrigona are uncommon species found in India and South East Asian countries. Several Lisotrigona species including L. cacciae, L.carpenteri and L. furva from Vietnam have been described. There has been no information on the chemical constituents and bioactivity of Lisotrigona stingless bee propolis in Vienam. Our goal of this work is to investigate the chemical constituents of the stingless bee Lisotrigona furva propolis collected in Binhdinh province, Vietnam. Using combined chromatographic methods, several triterpenes including mangiferolic acid insert ignore into journalissuearticles values( 1 );, occotilones I insert ignore into journalissuearticles values( 2 ); and II insert ignore into journalissuearticles values( 3 );, dipterocarpol insert ignore into journalissuearticles values( 4 );, hydroxyhopanone insert ignore into journalissuearticles values( 5 ); and insert ignore into journalissuearticles values(13 E ,17 E );-polypoda-7,13,17,21-tetraen-3β-ol insert ignore into journalissuearticles values( 6 ); were isolated from the ethyl acetate extract of Lisotrigona furva propolis. The chemical structures of isolated compounds were identified by MS, NMR spectral analysis. Compound 5 and 6 were isolated for the first time from stingless bee propolis. Acknowledgements: This research is funded by Vietnam Academy of Science and Technology under grant number VAST.HTQT.BULGARIA.02/17-18. 
Keywords : Lisotrigona furva propolis, NMR