Triterpenes are widely found amongst various natural sources and are derived from
squalene or related 30-carbon acyclic congeners. Medicinal plants are an excellent source …

A new series of betulin derivatives containing one or two pharmacophores bearing an
acetylenic and carbonyl function at the C-3 and/or C-28 positions has been synthesized and …

Plant-derived natural products (plant secondary metabolites) are an inexhaustible source for
the new bioactive substances due to the large structural diversity and a broad spectrum of …

Several novel betulin derivatives were prepared and evaluated for their antitumor activity.
Among others, 3-O-acetylbetulinic aldehyde served as an ideal starting material for the …

Several novel betulin derivates were prepared using Mannich reactions as a key step.
Starting from 3‐ethynyl‐3‐hydroxy‐lup‐20 (29)‐ene derivatives, copper‐catalyzed Mannich …

Hollongdione is the first recorded example of the occurrence of a dammarane hexanor-
triterpene in nature possessing antiviral and cytotoxic activity. Its simple one-stage …

A synthesis of the first representatives of symmetrical and unsymmetrical triterpene 1, 3‐
diynes in which one or two triterpene cores are linked by a diyne spacer at the C‐2 position …

This review focuses on advances in chemistry and pharmacology of synthetic triterpenoid
dimers, obtained from natural compounds. Synthetic triterpenoid dimers are divided into …

Betulina 1 jest jedną z pierwszych substancji wyizolowanych z roślin. W 1877 roku wydzielił
ją przypadkowo z kory brzozy brodawkowatej Betula verrucosa Ehrh. rosyjski naukowiec TE …

Betulin-Betulinic Acid Natural Product Based Analogs as Anti-Cancer Agents Page 1 Send
Orders for Reprints to reprints@benthamscience.net Anti-Cancer Agents in Medicinal …