Diterpenoids from Isodon parvifolius

A new ent-kaurane diterpenoid, 2 β , 3 β , 6 β , 11 β -tetraacetoxy -ent -kaur-16 β - methy-15-one (1), along with three kown diterpenoids, hebeirubescensin L (2), rabescensin C (3), and trichokaurin (4) were isolated from the leaves of Isodon parvifolius. Their structures were elucidated on the basis of spectroscopic methods and literatures.