InChI=1S/C22H32O4/c1-14(13-23)6-5-7-15(2)16-10-11-22(3)18(16)12-17-19(26-22)8-9-20(25-4)21(17)24/h6,10,15,18,20,23H,5,7-9,11-13H2,1-4H3/b14-6+