InChI=1S/C30H32O4/c1-14(2)19-11-18-12-22-23(13-20(18)27-21(19)7-16(5)9-25(27)31)29(33)30(34,15(3)4)24-8-17(6)10-26(32)28(22)24/h7-10,12-15,19,31-32,34H,11H2,1-6H3/t19-,30-/m0/s1