Synonyms: Naphth[2',1':4,5]indeno[1,7-bc]furan,gon-13(17)-eno[17,13,12-bc]furan deriv.; Naphth[2',1':4,5]indeno[1,7-bc]furan,1,2,5,5a,5b,6,7,8,9,9a,10,11,11a,11b-tetradecahydro-, [5aR-(5aa,5bb,11ab,11ba)]-; [5aR-(5aa,5bb,11ab,11ba)]-1,2,5,5a,5b,6,7,8,9,9a,10,11,11a,11b-Tetradecahydronaphth[2',1':4,5]indeno[1,7-bc]furan