Asian Journal
Of Traditional Medicines

Abstract: Thirteen xanthones were isolated from L. rotatum, which were established as 1,8-dihydroxy-3,4,5-trimethoxyxanthone (1); 1-hydroxy-3,7,8-trimethoxyxanthone (2); 8-hydroxy-1,3,5-trimethoxyxanthone(3); 1-hydroxy-3,4,5-trimethoxyxanthone (4); 1-hydroxy-3,5,8-trimethoxyxanthone (5); 1,4,8-trihydroxy-5,6-dimethoxyxanthone (6); 1,3,8-trihydroxy-4,7-dimethoxyxanthone (7); 1,8-dihydroxy-3,7-dimethoxyxanthone (8); 1-hydroxy-3,5-dimethoxyxanthone (9); 1-hydroxy-2,3,4,5-tetramethoxyxanthone (10); 1-hydroxy-2,3,4,7-tetramethoxyxanthone (11); 1,7-dihydroxy-3,8-dimethoxyxanthone (12) ; rel-1,3,5,8-tetrahydroxy- 2,4,6,7-tetrahydroxanthen-9-one (13). Compounds 4, 6, 7, 9, 10, 11, 12 and 13 are reported for the first time from Lomatogonium. Furthermore, the activity of xanthones was assessed.

Key words: Lomatogonium rotatum, xanthones, activity