InChI=1S/C34H42O4/c1-21-9-7-11-23(3)17-27-25(15-13-21)31(37-5)19-29(33(27)35)30-20-32(38-6)26-16-14-22(2)10-8-12-24(4)18-28(26)34(30)36/h11-14,19-20,35-36H,7-10,15-18H2,1-6H3/b21-13-,22-14-,23-11-,24-12-