Abstract
A new neo-clerodane type diterpenoid, Syrapolin II 1 (12,18-diacetoxy-15,16-diepoxy-6-oxo-neo-cleroda-13(16),14-diene-3β,7α-20β-trihydroxy-19-hemiacetal) 1, and tow known compounds 6'-O-Caffeoyl-8-O-acetylharpagide 2, clerosterol-3-O-glucoside 3, were isolated from the aerial parts of Teucrium polium L. var. mollissimum Hand-Mazz. The structure of compounds were proposed on the basis of spectroscopic methods (IR, MS, NMR), and comparison with closely related compounds.