InChI=1S/C19H26O3/c1-4-18(2)9-7-13-12-6-5-8-19(3,11-20)14(12)10-15(21)16(13)17(18)22/h4,10,17,20-22H,1,5-9,11H2,2-3H3/t17-,18-,19+/m0/s1