-
(4S,5'R,6aR,6bS,8aS,8bR,9S,10R,11aS,12aS,12bS)-5',6a,8a,9-tetramethyl-1,3,4,5,6,6a,6b,7,8,8a,8b,9,11a,12,12a,12b-hexadecahydrospiro[naphtho[2',1':4,5]indeno[2,1-b]furan-10,2'-piperidin]-4-yl methanesulfonate
-
(4S,5'R,6aR,6bS,8aS,8bR,9S,10R,11aS,12aS,12bS)-4-(allyloxy)-5',6a,8a,9-tetramethyl-1,3,4,5,6,6a,6b,7,8,8a,8b,9,11a,12,12a,12b-hexadecahydrospiro[naphtho[2',1':4,5]indeno[2,1-b]furan-10,2'-piperidine]
-
(4S,5'R,6aR,6bS,8aS,8bR,9S,10R,11aS,12aS,12bS)-5',6a,8a,9-tetramethyl-1,3,4,5,6,6a,6b,7,8,8a,8b,9,11a,12,12a,12b-hexadecahydrospiro[naphtho[2',1':4,5]indeno[2,1-b]furan-10,2'-piperidin]-4-yl furan-2-carboxylate
-
(4S,5'R,6aR,6bS,8aS,8bR,9S,10R,11aS,12aS,12bS)-5',6a,8a,9-tetramethyl-1,3,4,5,6,6a,6b,7,8,8a,8b,9,11a,12,12a,12b-hexadecahydrospiro[naphtho[2',1':4,5]indeno[2,1-b]furan-10,2'-piperidin]-4-yl 3-methoxybenzoate
-
(4S,5'R,6aR,6bS,8aS,8bR,9S,10R,11aS,12aS,12bS)-5',6a,8a,9-tetramethyl-1,3,4,5,6,6a,6b,7,8,8a,8b,9,11a,12,12a,12b-hexadecahydrospiro[naphtho[2',1':4,5]indeno[2,1-b]furan-10,2'-piperidin]-4-yl 4-(tert-butyl)benzoate