Synonyms: Psilostachyin B;6,10a-dimethyl-3-methylidene-3,3a,4,5,7,8,10a,10b-octahydrofuro[3',2':6,7]cyclohepta[1,2-b]pyran-2,9-dione;6995-02-4;AC1Q69ML;AC1L403C;AR-1H0121;NSC106391;NSC-106391;3,3a,4,5,7,8,10a,10b-Octahydro-6,10a-dimethyl-3-methylenefuro(3',2':6,7)cyclohepta(1,2-b)pyran-2,9-dione (3aS-(3aalpha,10abeta,10balpha))-;Furo(3',2':6,7)cyclohepta(1,2-b)pyran-2,9-dione, 3,3a,4,5,7,8,10a,10b-octahydro-6,10a-dimethyl-3-methylene-, (3aS-(3aalpha,10abeta,10balpha))-