InChI=1S/C17H23NO4/c1-3-11-15-12-6-7-14(19)18(12)8-4-5-13(15)21-17(11)9-10(2)16(20)22-17/h9,11-13,15H,3-8H2,1-2H3/t11-,12-,13+,15+,17?/m0/s1