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A new phenolic glycoside, 4-O-β-D-apifuranosyl-(1 → 2)-β-D-glucopyranosyl-2-hydroxy-6-methoxyacetophenone (2) and 11 known compounds were isolated from the MeOH extract of the plant Celosia argentea. The structures of the compounds were elucidated on the basis of spectroscopic analysis and chemical methods. Among the isolated compounds, stigmasterol (10) showed moderate inhibitory activities against SGC-7901 and BEL-7404 cells. [ABSTRACT FROM AUTHOR]

Three new water-soluble compounds, pungens A-C, along with four known compounds including two phenol glycosides, one secoiso-flavanol and one phenol ether, have been isolated from the bark of Elaeagnus pungens. Among them, pungen C (7) (200 μg/ml) was tested in SGC-7901 and BEL-7404 tumor cell lines, and showed moderate cytotoxic activity. The structures of the new compounds were elucidated on the basis of spectroscopic data and chemical evidence. [ABSTRACT FROM AUTHOR]

Three new constituents were obtained along with 10 known compounds from the seeds of Brucea javanica. The structures of these compounds were determined based on spectral and chemical evidence. These new compounds included a monoterpenoid glycoside and two sesquiterpenes. Bioactivity screening of these constituents showed that compounds 1, 3, 8, 9, and 13 with obvious activities in inhibiting multiplication of the Tobacco mosaic virus. [ABSTRACT FROM AUTHOR]

Three new triterpenoid saponins, hylonosides III-V ( 1 - 3 ) have been isolated, along with three known oleanolic acid saponins ( 4 - 6 ), from the methanol extract of leaves of Ilex hylonoma . The structures were elucidated using a combination of homo- and hetero-nuclear 2D NMR techniques (COSY, TOCSY, NOESY, HMQC and HMBC) and negative FAB-MS. The new compounds were characterized as 3- O -β- d -glucopyranosyl-(1→4)-β- d -glucuronopyranosyl siaresinolic acid-28- O -β- d -glucopyranosyl ester ( 1 ), 3- O -β- d -glucopyranosyl-(1→4)-β- d -glucopyranosyl-(1→2)-β- d -glucuronopyranosyl siaresinolic acid-28- O -β- d -glucopyranosyl ester ( 2 ), 3- O -β- d -glucopyranosyl-(1→4)-β- d -glucopyranosyl-(1→2)-β- d -glucuronopyranosyl oleanolic acid-28- O -β- d -glucopyranosyl ester ( 3 ). [ABSTRACT FROM AUTHOR]