Antitumor effects of BPCO on liver cancer cells.

Esculetin is a coumarin compound with anticancer, antioxidant, and anti-inflammatory activities. In this study, we synthesized an esculetin derivative, 6,7-bis(Pentyloxy)-2H-Chromen-2-One (BPCO), through etherification. BPCO inhibited the proliferation of HepG2 cells in a dose- and time-dependent manner.

Synthesis and biological evaluation of esculetin derivatives as potential anti-HBV agents.

Previous in vivo and in vitro studies revealed that esculetin (Fig. 1) has anti-hepatitis B virus (anti-HBV) activity as well as a protective effect on liver damage caused by duck hepatitis B virus. We designed and synthesized a series of esculetin derivatives, introduced side chains containing various amino groups into site 7 of the parent structure, and synthesized C-4 and C-8 substituted derivatives with the goal of investigating their anti-HBV activities.

Two new dammarane triterpenoid saponins from the leaves of .

Two undescribed dammarane triterpenoid saponins, cypaliurusides O and P ( and ), were isolated from the ethanol extracts of the leaves of . Bioactivity assay results showed that compound has potential cytotoxic activities against selected human cancer cell lines , with IC values ranging from 14.55 ± 0.

Bioactive dammarane triterpenoid saponins from the leaves of Cyclocarya paliurus.

Thirteen undescribed dammarane triterpenoid saponins (cypaliurusides A-M), including eleven seco-dammarane type triterpenoids, were isolated from Cyclocarya paliurus. Each of these compounds has the unique feature of having a monosaccharide attached to C-11, rather than C-12, compared to the same type of saponins found in this plant. The structures of them were determined by comprehensive analysis of 1D, 2D NMR and HRESIMS data.