INDEX triterpenoids

Betulinic acid and platanic acid are triterpenoids isolated from Syzygium claviflorum. They exhibit inhibitory activity against HIV-1 replication in H9 lymphocyte cells at an IC50 of 1.4 and 6.5 pM, respectively (selectivity index 9.3 and 14, respectively). Hydrogenation of betulinic acid... 

Victorian brown coal occurs in five major lithotypes distinguishable by color index and petrography. Advantage has been taken of a rare 100 m continuous core to compare and contrast chemical variations occurring as a function of lithotype classification. For many parameters there is a much greater contrast between the different lithotypes than there is across the depth profile of (nearly) identical lithotypes. Molecular parameters, such as the distributions of hydrocarbons, fatty acids, triterpenoids and pertrifluoroacetic acid oxidation products, together with gross structural parameters derived from IR and C-NMR spectroscopic data, Rock-Eval and elemental analyses and the yields of specific extractable fractions are compared. 

The hemolytical index of 21 triterpenoid saponins from Solidago virgaurea, Heteropappus altaicus, H. biennis and Helianthus annuus, containing different carbohydrate moieties was examined in view of a... 

Key Word Index—Aster auriculatus, Compositae triterpenoid saponins 2D NMR. 

Key Word index—G//n f lotoids var. dectaminoids, Molluginaceae neohopane, triterpenoidal... 

Key Word Index — Bemeuxia thibetica Decne triterpenoid saponins bemeuxia saponins A B, C desacyl jegosaponin. 

Kako, M., T. Miura, Y. Nishiyama, et al. 1997. Hypoglycemic activity of some triterpenoid glycosides. /. Nat. Prod. 60(6) 604-605. Merck, E. 1930. Merck s index. Darmstadt E. Merck. 

Phytochemistry The whole plant contains alkaloids, including anabasine and plantagonine, saponins, triterpenoid saponins, and vitamin C (Khodzhimatov 1989 Seifert et al. 1991 Hartleb and Seifert 1995). The aboveground parts contains saponins with a hemolytic index of 1 250 (Khalmatov 1964). 

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