Louh, Gabin NselapiLannang, Alain MeliMbazoa, Celine DjamaTangmouo, Jean GustaveKomguem, JustinCastilho, PaulaNgninzeko, Fernande NgounouQamar, NazLontsi, DavidChoudhary, Muhammad IqbalSondengam, Beiban Luc2021-04-082021-04-082008Louh, G. N., Lannang, A. M., Mbazoa, C. D., Tangmouo, J. G., Komguem, J., Castilho, P., ... & Sondengam, B. L. (2008). Polyanxanthone A, B and C, three xanthones from the wood trunk of Garcinia polyantha Oliv. Phytochemistry, 69(4), 1013-1017.http://hdl.handle.net/10400.13/3262Three xanthones, polyanxanthone A (1), B (2) and C (3) have been isolated from the methanol extract of the wood trunk of Garcinia polyantha, along with five known xanthones: 1,3,5-trihydroxyxanthone (4); 1,5-dihydroxyxanthone (5); 1,3,6,7-tetrahydroxyxanthone (6); 1,6-dihydroxy-5-methoxyxanthone (7) and 1,3,5,6-tetrahydroxyxanthone (8). Their structures were determined by means of 1D- and 2D-NMR techniques. Some of the above compounds were screened for their anticholinesterase activity on acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes.engGarcinia polyanthaPolyanxanthone APolyanxanthone BPolyanxanthone CPrenyloxyxanthonesAnticholinesterase.Faculdade de Ciências Exatas e da Engenhariajournal article10.1016/j.phytochem.2007.10.002