Synonyms: Furo[2',3':5,6]cyclohepta[1,2-c]pyran-2,7(3H,4H)-dione,3aa,4a,5,8,8aa,9,10,10aa-octahydro-3a,4ab,9a-trimethyl-, (+)- (8CI);Furo[2',3':5,6]cyclohepta[1,2-c]pyran-2,7(3H,4H)-dione,octahydro-3,4a,9-trimethyl-, [3R-(3a,3aa,4ab,8aa,9a,10aa)]-; Epithemoidin