2(3H)-benzofuranone, 5-[4-[(5R,6S,7aS)-6-ethenyl-2,4,5,6,7,7a-hexahydro-3-(hydroxymethyl)-6-methyl-2-oxo-5-benzofuranyl]-1-methyl-4-pentenyl]-6-ethyl-3a,6,7,7a-tetrahydro-3-hydroxy-3-(hydroxymethyl)-6 6-Ethyl-3-hydroxy-3-hydroxymethyl-5-[4-(3-hydroxymethyl-6-methyl-2-oxo-6-vinyl-2,4,5,6,7,7a-hexahydro-benzofuran-5-yl)-1-methyl-pent-4-enyl]-6-methyl-3a,6,7,7a-tetrahydro-3H-benzofuran-2-one InChI=1/C30H42O7/c1-7-28(5)13-24-19(20(15-31)26(33)36-24)11-21(28)17(3)9-10-18(4)22-12-23-25(14-29(22,6)8-2)37-27(34)30(23,35)16-32/h7,12,18,21,23-25,31-32,35H,1,3,8-11,13-16H2,2,4-6H3/t18?,21-,23+,24+,25-,28-,29-,30-/m1/s Macrophyllidimer C rel-(3R,3aR,6S,7aS)-6-ethyl-3-hydroxy-3-(hydroxymethyl)-5-{4-[(5S,6R,7aR)-3-(hydroxymethyl)-6-methyl-2-oxo-6-vinyl-2,4,5,6,7,7a-hexahydro-1-benzofuran-5-yl]-1-methylpent-4-en-1-yl}-6-methyl-3a,6,7,7a-