InChI=1S/C19H26O5/c1-12(2)4-9-16(20)13(3)5-8-15-14(7-11-18(22)23)6-10-17(21)19(15)24/h4-6,10,16,20-21,24H,7-9,11H2,1-3H3,(H,22,23)