Stemarane diterpenoids

Diterpenoids with a structure characterized by a stemarane skeleton. Some characteristics include the bicyclic system C/D that is constituted by a bicyclo[3.2.1]octane fused to the bicyclic A/B system in a different fashion with respect to other tetracyclic diterpenes possessing the bicyclo[3.2.1]octane system. Moreover, the two contiguous quaternary carbon atoms, C(9) and C(10), are present, the former being a spirocyclic atom. Oxygenation can happen at positions C(2), C(7), C(13), C(17), C(18), and C(19).

Organic compounds -> Lipids and lipid-like molecules -> Prenol lipids -> Diterpenoids -> Villanovane, atisane, trachylobane or helvifulvane diterpenoids