A new monoterpene glycoside from Siparuna thecaphora.

Phytochemical investigation of the extracts of the leaves of Siparuna thecaphora (Poepp. et Endl.) A. DC. (Siparunaceae) allowed the isolation of one monoterpene glycoside, named trans-thujane-1α,7-diol 1-O-β-D-glucopyranoside (1) along with rutin, quercetin 3-O-β-D-glucopyranoside and 3,4-dihydroxybenzaldehyde. Their structural characterisation was obtained on the basis of extensive spectroscopic analyses, including 1D and 2D NMR experiments and HR-ESI-MS.