Fern Constituents: Triterpenoids Isolated from Leaflets of Cyathea spinulosa.
摘要:
Four new triterpenoids, hopan-29.17α-olide (1), hopan-17α, 29-epoxide (2), 3α-hydroxyfilic-4(23)-ene (3), and 2-oxofilic-3-ene (4), were isolated from the dried leaflets of Cyathea spinulosa, together with hop-22(29)-ene (5), fern-7-ene (6), fern-9(11)-ene (7), filic-3-ene (8), hydroxyhopane (9), dryocrassol (10), tetrahymanol (11) and cyclolaudenyl palmitate (12). The structures of the new compounds were elucidated on the bases of spectral data and chemical correlations.
Fern Constituents: Triterpenoids Isolated from Leaflets of Cyathea spinulosa.
摘要:
Four new triterpenoids, hopan-29.17α-olide (1), hopan-17α, 29-epoxide (2), 3α-hydroxyfilic-4(23)-ene (3), and 2-oxofilic-3-ene (4), were isolated from the dried leaflets of Cyathea spinulosa, together with hop-22(29)-ene (5), fern-7-ene (6), fern-9(11)-ene (7), filic-3-ene (8), hydroxyhopane (9), dryocrassol (10), tetrahymanol (11) and cyclolaudenyl palmitate (12). The structures of the new compounds were elucidated on the bases of spectral data and chemical correlations.