Covering: 1990–2005. Previous review: Nat. Prod. Rep., 2005, 22, 487 This article reviews
the pharmacological activity of naturally occurring triterpenoids excluding the degraded …

Betulin (lup-20 (29)-ene-3β, 28-diol) is an abundant naturally occurring triterpene and it is
found predominantly in bushes and trees forming the principal extractive (up to 30% of dry …

Betulinic acid is a natural product with a range of biological effects, for example potent
antitumor activity. This anticancer property is linked to its ability to induce apoptotic cell …

Covering: 1995 to 2006 This review will detail progress made in the previous decade on the
chemistry and bioactivity of birch bark extractive products. Current and future applications of …

Аннотация В обзоре систематизированы данные по природным источникам бетулина
и методам его выделения. Рассмотрены превращения бетулина и его доступных …

Triterpenoids are natural products from plants and many other organisms that have various
biological activities, such as antitumor, antiviral, antimicrobial, and protective activities. This …

Betulinic acid (BA) is a naturally occurring pentacyclic triterpene that exhibits a variety of
biological activities including potent antitumor properties. This anticancer activity has been …

The data on natural sources of betulin and methods of its extraction are systematized in the
review. Transformations of betulin and its available derivatives are considered. The data on …

Ursolic acid and 2α-hydroxyursolic acid isolated from apple peels were found to show
growth inhibitory activity against four tumor cell lines, HL-60, BGC, Bel-7402 and Hela …

Covering: 1962 to 2014 Triterpenoids are natural compounds with a variety of biological
activities and are usually produced by plants as secondary metabolites. In recent decades …