Nepetifoliol - a new glutinane-triterpenoid from .

A new glutinane-triterpenoid, nepetifoliol (), together with two known compounds, dymacrin D (), and (+)-ar-tumerone () were isolated from the -hexane extract of the aerial parts of . Their chemical structures were elucidated by spectroscopic data analysis as well as the comparison of their NMR data with the ones published in the literatures. A putative biosynthetic pathway for the formation of the new compound (diaxial-5,6-diol) () from the precursor triterpene glutinol was proposed.