Chemical and Chemotaxonomical Studies of Filices. LXX. Chemical Studies on the Constituents of Plagiogyria formosana, P. adnata, P. dunnii and P. stenoptera

Abstract

The constituents of four ferns of the genus Plagiogyria were investigated. The ferns and isolated compounds are as follows. P. formosana : plagiogyrin A (2), fern-9 (11)-ene (4), 21αH-fern-9 (11)-ene (5), fern-9 (11)-en-12-one (6), hydroxyhopane (7), hydroxyisohopane (8), dryocrassol (9), dryocrassyl acetate (10), methyl hopan-30-oate (11), 17, 21-epoxyhopane (15), hop-17 (21)-ene ozonide A (16), hopene-II (17), ferna-7, 9 (11)-diene (18). P. adnata : 2. P. dunnii : 2, plagiogyrin B (3). P. stenoptera : 2. As plagiogyrin A and its derivatives have been isolated from two other ferns of the same genus, P. euphlebia and P. matsumureana, they may be considered as chemical markers of this genus.