InChI=1S/C19H26O5/c1-12(8-13(2)6-7-20)4-5-15-9-14-10-17(21)19(3,23)18(22)16(14)11-24-15/h4-5,8-10,13,16,18,20,22-23H,6-7,11H2,1-3H3/b5-4+,12-8+/t13?,16-,18+,19-/m0/s1