Cheilanthane sesterterpenoids
Description:
Sesterterpnoids with a structure based on the cheilanthane backbone. Cheilanthane is a tricyclic compound consisting of a tetradecahydrophenanthrene ring system that carries two methyl groups at the 1-position, one methyl group at the 4a-,7-, and 8a-positions, as well as a 3-methylpentyl group at the 8-position.