Serialynic acid, a new phenol with an isopentenyne side chain from Antrodia serialis.

A new phenolic compound serialynic acid was isolated from an agar culture of the basidiomycete Antrodia serialis, through bioactivity-guided fractionations. It showed weak growth inhibitory activity towards phytopathogenic fungi and a dose-independent anti-Pythium graminicola activity.

Insect antifeedant furanocoumarins from Tetradium daniellii.

The dried fruits of Tetradium daniellii yielded a new linear furanocoumarin, 5-(6-hydroxy-3,7-dimethylocta-2,7-dienyloxy)psoralen, together with six other structurally related furanocoumarins. A similar chemical profile was recorded by HPLC analysis of a fragment of T. daniellii fruit obtained from an historic herbarium voucher specimen collected in September 1917 during an expedition to Yunnan province, China.