Covering: January 2006 to December 2008 This article reviews the antitumor and anti-HIV
activities of naturally occurring triterpenoids, including the lupane, ursane, oleanane …

The continued advance of HIV-AIDS makes the development of relatively inexpensive, freely
accessible, and mechanistically more diverse antiviral therapies an urgent need. Natural …

Triterpenoids, important secondary plant metabolites made up of six isoprene units, are
found widely in higher plants and are studied for their structural variety and wide range of …

Today cancer treatment is not only a question of eliminating cancer cells by induction of cell
death. New therapeutic strategies also include targeting the tumour microenvironment …

The plant-derived terpenoids and analogues are reviewed with respect to their anti-HIV
activity, structure-activity relationships, and mechanism of action. The active compounds …

Lupane triterpenoids 2 and 5–12 and oleanene derivatives 13 and 14 were prepared from
lupeol (1), betulin (3), and germanicol (4). They were tested for anti-HIV activity, and some …

Over the last two decades, extensive research on compounds isolated from fruits,
vegetables, cereals, herbs and medicinal plants has revealed that triterpenoids possess …

Triterpenes are naturally occurring derivatives biosynthesized following the isoprene rule of
Ruzicka. The triterpenes have been reported to possess a wide range of therapeutic …

Triterpenoids are distributed widely in higher plants and are of interest because of their
structural diversity and broad range of bioactivities. In particular, there is a very large …

The aim of this review is to update current knowledge on the betulinic, ursolic and
echinocystic acids and their natural and semisynthetic analogs, focussing on their cytotoxic …