(1R,10S)-8-oxatetracyclo[8.7.0.0^{2,7}.0^{12,17}]heptadeca-2(7),3,5,12(17),13,15-hexaene-5,6,10,14,15-pentol
(1R,10S)-8-oxatetracyclo[8.7.0.0^{2,7}.0^{12,17}]heptadeca-2,4,6,12(17),13,15-hexaene-5,6,10,14,15-pentol
(1R,10S)-8-oxatetracyclo[8.7.0.02,7.012,17]heptadeca-2(7),3,5,12,14,16-hexaene-5,6,10,14,15-pentol
(1R,10S)-8-oxatetracyclo[8.7.0.02,7.012,17]heptadeca-2(7),3,5,12(17),13,15-hexaene-5,6,10,14,15-pentol
(1R,10S)-8-oxatetracyclo[8.7.0.0²,⁷.0¹²,¹⁷]heptadeca-2(7),3,5,12(17),13,15-hexaene-5,6,10,14,15-pentol
(1S,10R)-8-oxatetracyclo[8.7.0.0²,⁷.0¹²,¹⁷]heptadeca-2(7),3,5,12(17),13,15-hexaene-5,6,10,14,15-pentol