6466-67-7 Decahydro-6,10a-dimethyl-3-methylenefuro(3',2':6,7)cyclohepta(1,2-b)pyran-2,9-dione (3aS-(3aalpha,6beta,6aalpha,10abeta,10balpha))- Furo(3',2':6,7)cyclohepta(1,2-b)pyran-2,9-dione, decahydro-6,10a-dimethyl-3-methylene-, (3aS-(3aalpha,6beta,6aalpha,10abeta,10balpha))-