(2aR,3R,5S,5aR,6R,6aR,6bR,7S,8R,9aR,10aS,10bR,10cR)-8-(3-Furyl)-3-hydroxy-6-(2-methoxy-2-oxoethyl)-2a,5a,6a,7-tetramethyltetradecahydro-2H,3H-cyclopenta[b]furo[2′,3′,4′:4,5]naphtho[2,3-d]furan-5-yl 3- methyl-2-butenoate

(2aR,3R,5S,5aR,6R,6aR,6bR,7S,8R,9aR,10aS,10bR,10cR)-8-(3-Furyl)-3-hydroxy-6-(2-methoxy-2-oxoethyl)-2a,5a,6a,7-tetramethyltetradecahydro-2H,3H-cyclopenta[b]furo[2′,3′,4′:4,5]naphtho[2,3-d]furan-5-yl 3- methyl-2-butenoate

(2aR,3R,5S,5aR,6R,6aR,6bR,7S,8R,9aR,10aS,10bR,10cR)-8-(3-Furyl)-3-hydroxy-6-(2-methoxy-2-oxoethyl)-2a,5a,6a,7-tetramethyltetradecahydro-2H,3H-cyclopenta[b]furo[2′,3′,4′:4,5]naphtho[2,3-d]furan-5-yl-3- methyl-2-butenoat

2H,3H-Cyclopenta[d]naphtho[2,3-b:1,8-b′c′]difuran-6-acetic acid, 8-(3-furanyl)tetradecahydro-3-hydroxy-2a,5a,6a,7-tetramethyl-5-[(3-methyl-1-oxo-2-buten-1-yl)oxy]-, methyl ester, (2aR,3R,5S,5aR,6R,6aR ,6bR,7S,8R,9aR,10aS,10bR,10cR)-

3-Méthyl-2-buténoate de (2aR,3R,5S,5aR,6R,6aR,6bR,7S,8R,9aR,10aS,10bR,10cR)-8-(3-furyl)-3-hydroxy-6-(2-méthoxy-2-oxoéthyl)-2a,5a,6a,7-tétraméthyltétradécahydro-2H,3H-cyclopenta[b]furo[2′,3′,4′:4,5]nap hto[2,3-d]furan-5-yle