InChI=1S/C19H28O3/c1-18-8-7-15-13(14(18)5-6-16(18)21)4-3-11-9-12(20)10-17(22)19(11,15)2/h9,13-17,21-22H,3-8,10H2,1-2H3/t13?,14?,15?,16-,17+,18-,19-/m0/s1