Flavonoids from Metasequoia glyptostroboides.
(1/2)
From the autumnal leaves of Metasequoia glypstostroboides were isolated: 3'-O-glucoside tricetin and ginkgetin, bilobetin, 2,3-dihydroisoginkgetin--new compounds in this plant. (+info)
Five new diterpenoids from the bark of Taiwania cryptomerioides.
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Five new diterpenoids, 11-hydroxyabieta-8,11,13-trien-7-one (1), 11,12,14-trihydroxyabieta-8,11,13-trien-7-one (2), 6beta,7alpha-diacetoxyroyleanone (3), 7beta-hydroxymanoyl oxide (4), and 9alpha-hydroxyisopimara-8(14),15-dien-7-one (5) were obtained from the bark of Taiwania cryptomerioides. The structures of the new compounds 1-5 were elucidated on the basis of spectral analysis and chemical evidence. (+info)