Three triterpenoids, 8 alpha -hydroxyfernan-25,7 beta -elide, 3 alpha -hydr
oxy-4 alpha -methoxyfilicane and 19 alpha -hydroxyferna-7,9(11)-diene were
isolated from the fresh fronds of Adiantum caudatum. Their structures were
elucidated by spectroscopic techniques. Thirteen known triterpenoids were a
lso identified from this fern. (C) 2001 Elsevier Science Ltd. All rights re
served.