3 结果
Four new phenylpropanoid glycosides, 9-O-[β-D-glucopyranosyl-(1→2)-α-L-rhamnopyranosyl]-3,4-dimethoxy-cinnamic acid (1), 9-O-[β-D-glucopyranosyl-(1→2)-α-L-rhamnopyranosyl]-4-methoxycinnamic acid (2), 9-O-α-L-rhamnopyranosyl-3,4-dimethoxy-cinnamic acid (3), and
A phytochemical investigation of the EtOH extract of the dry fronds of Microlepia pilosissima Ching afforded four new isopimarane diterpene glycosides, 3α-O-α-L-rhamnopyranosyl-7β-O-β-D-fucopyranosyl-ent-iospimara-8(14),15-diene (1),
A new chemotype of Microlepia marginata, P-type strain, was found in the Central districts of Japan. The two main constituents were characterized to be 2 beta,15(R),16-trihydroxy-ent-pimar-7-en-3-one (fumotoshidin A) and 3 alpha-alpha-L-arabinofuranosyloxy-15(R),16-dihydroxy-ent-pimar+ ++-7-ene