Advance in on chemical constituent and bioactivity research of genus Chloranthus / 中国中药杂志

Progresses in the studies on chemical constituents and bioactivities of Chloranthus S. were systemically reviewed in this article. The whole plants of most species in Chloranthus have long been used as folk medicine in China for detumescence, treating on snake bite and wound. 68 compounds obtained from the plants in Chloranthus fall into the following compound classes: terpenoids, coumarins, amides, organic acids and sterols. Fifty one sesquiterpenes were got. The results of studies on their bioactivities show that most of the plants in this genus have antibacterial and antitumor activities. Further phytochemical and biological studies on the species in Chloranthus are needed for better medicinal utilization.

Studies on chemical constituents in heartwood of Taxus cuspidata / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents in the heartwood of Taxus cuspidata.</p><p><b>METHOD</b>Silica gel column chromatography, preparative HPLC and preparative TLC were used to isolate and purify the chemical constituents; 1H- and 13C-NMR spectroscopic methods were used for structural identification.</p><p><b>RESULT</b>Ten compounds, taxinine (1), taxusin (2), beta-sitosterol (3), 1 beta-hydroxybaccatin I (4), 2alpha, 5alpha, 10beta-triacetoxy-14beta-(2'-methyl) butanoyloxy-4 (20), 11-taxadiene (5), 2alpha, 5alpha, 10beta-triacetoxy-14beta-(2'-methyl-3'-hydroxy-butanoyloxyl-4 (20), 11-taxadiene (yunnanxane) (6), 9alpha, 10beta, 13alpha-triacetoxy-5alpha-cinnamoyltaxa-4 (20), 11-diene (7), 2-deacetoxytaxinine J (8), taxezopidine G (9), 2alpha, 7beta, 9alpha, 10beta, 13alpha-pentaacetoxyl-taxa-4 (20), 11-dien-5-ol (5-decinnamoyltaxinine J) (10), were isolated and identified from the heartwood of T. cuspidata.</p><p><b>CONCLUSION</b>Three taxanes, 1 beta-hydroxybaccatin I (4), 2alpha, 5alpha, 10beta-triacetoxy-14beta-(2'-methyl-3'-hydroxy-butanoyloxy)-4 (20), 11-taxadiene (yunnanxane) (6), and 2alpha, 7beta, 9alpha, 10beta, 13alpha-pentaacetoxyltaxa-4 (20) , 11-dien-5-ol (10), were obtained from this plant for the first time.</p>