英文名称:(3Ar)-3Aα,4,4A,5,7,8,8Aα,9,10,10Aα-Decahydro-5Α,8Α-Dihydroxy-4Aβ,9Α-Dimethyl-3-Methylenefuro[2',3':5,6]Cyclohepta[1,2-C]Pyran-2(3H)-One; (3aR)-3aα,4,4a,5,7,8,8aα,9,10,10aα-Decahydro-5α,8α-dihydroxy-4aβ,9α-dimethyl-3-methylenefuro[2',3':5,6]cyclohepta[1,2-c]pyran-2(3H)-one; Biennin A