... Carbohydrates and a cyclitol from Mexican plants with hypoglycemic activity.Among the flavonoids, the most abundant were flavonols(20,30,(45)(46)(47)62, 169), glycosides or not, and flavones(21)(22)(23)(24)32, 214-216, 229, 231), although a few dihydrochalcones(96,102,80,93,99,104), a biflavone (208), a flavanone(55), and three flavan-3-ols(2,113, 204) are included. The aromatic compounds comprise eight coumarins, one simple(7), and seven 4-phenylcoumarins(106-109, 116, 123 and 124); six hydroxycinnamic acids (3, 13, 27, 112, 217, 232); three chromenes(39)(40)(41); three depsides(120)(121)(122); two phthalides (171 and 172); two α-pyrone glycosides (9 and 10); one stilbene (219); and one hydroxybenzoic acid (1). The terpenoids included 11 sesquiterpenes(4-6, 25, 26, 42, 43, 175, 180, 182, 234), of which four were sesquiterpene lactones (25, 42, 43, 175) of the eudesmanolide, heliangolides, and melampolides types; the remaining were a nor-sesquiterpene (234); one acyclic diol (26), two eremophylanes (180, 182), and one bisabolene (4) and its rearranged products (5, 6). ...