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期刊论文
Eudesmane derivatives from Laggera pterodonta
Fitoterapia 74(2003)459-463,-0001,():
A new eudesmane derivative, 4a,5a-dihydroxyeudesma-11(13)-en-12-oic acid, was isolated from Laggera pterodonta.Its structure was elucidated as (1) on the basis of spectroscopic evidence.Mor eover, six known compounds were isolated: pterodontriol A (2), pterodontriol B, pterodonta acid (3), ilicic acid (4), costic acid and b-amyrin.Cytotoxic activity of compounds 2, 3 and 4 was investigated.
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