Typically possessing low toxicity and a broad spectrum
of biological activity, plant triterpenoids are valuable raw
materials for the creation of new drugs [1 – 4]. Of special interest
in this respect are the major triterpenoids contained in
the root extract obtained from plants of the common licorice
(Glycyrrhiza glabra L.) and Ural licorice (Glycyrrhiza
uralensis Fisher ) species. These substances are represented
by 18 -glycyrrhetic acid (I) and its modified analogs, which
serve as the base for effective antiinflammatory, antiallergic,
and antiulcer preparations [2, 5 – 9]. The antiulcer drugs include
the sodium salt of acid I (glycyrrhenate sodium) [2]
and the disodium salt of acid I succinate (carbenoxolone, II)