4 rezultatus
OBJECTIVE
To find the active constituents from Taxus chinensis var. mairei.
METHODS
The constituents were isolated and purified by supercritical carbon dioxide extraction and column chromatography. Their structures were determined primarily in the basis of their 1H-NMR, 13C-NMR and DEPT, MS,
A new 2(3-->20) abeotaxane, taxumairone A (1), and a new cis-p-coumaroyl myo-inositol have been isolated from the seeds of Taxus mairei in addition to taxin B (2), taxinine A, taxuspine X, decinnamoyltaxinine E, 5alpha-cinnamoyloxy-9alpha,10beta,13alpha- triacetoxy-taxa-4(20)11-diene and
In addition to taxol A (1), 10-deacetyltaxol A (2), 10-deacetyl-7-epi-taxol A (3), 10-deacetylbaccatin III (5), taxuspine Z, taxezopidine G, 5 alpha-cinnamoyloxy-9 alpha,10 beta,13 alpha-triacetoxytaxa-4(20)11-diene, taxinine J, and taxinine M, a new bicyclic taxoid named taxumairol M (4), has been
OBJECTIVE
To study the chemical constituents in seeds of Taxus mairei.
METHODS
Preparative HPLC, TLC and spectroscopic analyses were used to isolate and elucidate the chemical constituets in the plant.
RESULTS
Seven taxane diterpenoids were isolated from the seeds of T. mairei and identified as