A new lanostane triterpenoid from Ganoderma resinaceum.

A new 23,24,25,26,27-five-nortriterpenoid (1), named resinacein T, was isolated from an ethanol extract of the fruiting bodies in Ganoderma resinaceum of family Ganodermataceae, together with two known lanostane triterpenoids, 3ß,7ß,15α,24-tetrahydroxy-11,23-dioxo-lanost-8-en-26-oic acid (2), and resinacein O (3). The structures of compounds (1-3) were elucidated using NMR and MS methods.

Isolation and synthesis of a new benzylated alkamide from the roots of Lepidium meyenii.

A new benzylated alkamide, N-(3,4-dimethoxybenzyl)-9Z-oleamide (1), along with two known ones (2 and 3) were isolated from the roots of Lepidium meyenii collected from Lijiang, Yunnan Province of China. Their structures were elucidated by extensive spectroscopic analyses and the new compound further confirmed by a one-step synthesis. All the isolated alkamides were evaluated for their cytotoxicity against five human cancer cell lines. However, no significant activities were detected at concentrations up to 40 µM.