[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a terpene lactone that consists of oxepan-2-one bearing methyl and isopropenyl substituents at positions 3 and 6 respectively. It is a monoterpenoid, a terpene lactone and an epsilon-lactone."}, {"from": "gpt", "value": "[C][C][C][C][C][Branch1][#Branch1][C][O][C][Ring1][#Branch1][=O][C][=Branch1][C][=C][C]"}]