InChI=1S/C22H32O4/c1-12(2)16-18(24)19(25)17-14(20(16)26-13(3)23)8-9-15-21(4,5)10-7-11-22(15,17)6/h12,15,20,24H,7-11H2,1-6H3/t15-,20+,22-/m0/s1