InChI=1/C30H48O6/c1-18-9-10-22-28(7,15-12-21(33)25(2,3)34-22)30(18)17-19(31)24(36-30)29(8)16-13-23-27(29,6)14-11-20(32)26(4,5)35-23/h18-19,22-24,31H,9-17H2,1-8H3/t18-,19-,22-,23-,24-,27+,28+,29+,30-/m0/s Yardenone A rel-(4'R,5'S,5aS,6R,7R,9aR)-4'-hydroxy-2,2,5a,7-tetramethyl-5'-[(5aR,6R,8aR)-2,2,5a,6-tetramethyl-3-oxooctahydro-2H-cyclopenta[b]oxepin-6-yl]octahydro-2H,3'H-spiro[1-benzoxepine-6,2'-furan]-3(4H)-one spiro[1-benzoxepin-6(2H),2'(3'H)-furan]-3(4H)-one, octahydro-4'-hydroxy-2,2,5a,7-tetramethyl-5'-[(5aS,6S,8aS)-octahydro-2,2,5a,6-tetramethyl-3-oxo-2H-cyclopent[b]oxepin-6-yl]-, (5'R,5aR,6S,7S,9aS)-