SMILES: C[C@@]12CCCC([C@H]1CC[C@]34[C@H]2CC[C@H](C3)C(=C)C4)(C)C
Description: The molecule is a tetracyclic diterpene consisting of ent-kaurane, where the 6-methyl group is replaced by methylene. It derives from a hydride of an ent-kaurane.