Anti-inflammatory xanthone derivatives from .

Two new xanthones delpyxanthone A () and delpyxanthone B (), together with four known ones, gerontoxanthone I (), α-mangostin (), cowanin () and cowanol () were isolated from the stem bark of . The chemical structures of were established mainly using nuclear magnetic resonance (NMR) and mass spectrometry (MS). The anti-inflammatory activity of the isolated compounds was evaluated against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.

Antimicrobial Lavandulylated Flavonoids from a Sponge-Derived sp. G248 in East Vietnam Sea.

Three new lavandulylated flavonoids, (2,2'')-6-lavandulyl-7,4'-dimethoxy-5,2'-dihydroxylflavanone (), (2,2'')-6-lavandulyl-5,7,2',4'-tetrahydroxylflavanone (), and (2'')-5'-lavandulyl-2'-methoxy-2,4,4',6'-tetrahydroxylchalcone (), along with seven known compounds were isolated from culture broth of s sp. G248. Their structures were established by spectroscopic data analysis, including 1D and 2D nuclear magnetic resonance (NMR), and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS).

Cytotoxic phenolic compounds isolated from the fruits of .

A new modified geranylated flavonoid, 3'-dehydroxy-solophenol C (), along with 17 known compounds (-) were isolated from the fruits of . Their structures were established by spectral analysis, such as mass spectrometry, 1D-NMR and 2D-NMR. The new geranylated flavonoid showed a moderate cytotoxic activity against the A549 cell line with IC value of 16.

Antimicrobial lavandulylated flavonoids from a sponge-derived actinomycete.

Analysis of an antimicrobial culture broth extract of the sponge-derived actinomycete sp. (strain G246) led to the isolation of two new lavandulylated flavonoids, 6-lavandulyl-7-methoxy-5,2',4'-trihydroxylflavanone () and 5'-lavandulyl-4'-methoxy-2,4,2',6'-tetrahydroxylchalcone (), along with eight known compounds -. Their structures were established by spectral data analysis, including MS, 1D, 2D-NMR and CD.

Two new sesquiterpenes from the fruits of Fissistigma villosissimum.

Two new sesquiterpenes, namely fissistinone (1) and fissistinol (2), along with ten known compounds (3-12), were isolated from the fruits of Fissistigma villosissimum. Their structures were elucidated on the basis of spectral data analysis, including one-dimensional (1D), two-dimensional (2D)-nuclear magnetic resonance (NMR), and high-resolution-electrospray ionization-mass spectrometry (HR-ESI-MS). Compounds 1-8 were evaluated for their cytotoxic activities against KB cell line; however, all these compounds did not show cytotoxic activity.