SMILES: C/C=C(\\C)/C(=O)O[C@@H]1C[C@@](/C=C/C(=O)/C(=C\\[C@@H]2[C@@H]1C(=C)C(=O)O2)/C)(C)O
Description: The molecule is a sesquiterpene lactone of the heliangolide group isolated from Eupatorium kiirunense and exhibits cytotoxicity against human oral epidermoid (KB), cervical epitheloid (Hela) and liver (hepa59T/VGH) carcinoma cells. It has a role as a metabolite and an antineoplastic agent. It is an enoate ester, an enone and a sesquiterpene lactone. It derives from a tiglic acid.