InChI=1S/C23H32O4/c1-5-6-7-8-16-12-20(24)22(23(27)18(16)13-21(25)26)19-11-15(4)9-10-17(19)14(2)3/h11-12,17,19,24,27H,2,5-10,13H2,1,3-4H3,(H,25,26)/t17-,19+/m0/s1