InChI=1S/C25H32O4/c1-6-7-8-9-16-14-18(26)17-15-20-24(4)12-11-21(27)23(2,3)19(24)10-13-25(20,5)29-22(17)28-16/h6-9,14,19-20H,10-13,15H2,1-5H3/b7-6+,9-8+/t19-,20+,24-,25+/m0/s1