Eudesmanolides and other constituents of Inula thapsoides

Three new eudesmanolides, 1 beta-hydroxy-11 alpha,13-dihydroalantolactone, 1 alpha-hydroxy-11 alpha,13-dihydroalantolactone and 1 beta,4 alpha-dihydroxy-11 alpha,13-dihydroalantolactone, along with the known compounds sclareol, 7,11,15-trimethyl-3-methylenehexadecan-1,2-diol, beta-sitositerol, stigmasterol and stigmasterol 3 beta-D-glucoside have been isolated from the whole plant extract of Inula thapsoides. (C) 1997 Elsevier Science Ltd.