InChI=1S/C19H27NO4/c1-14(13-16(21)15-7-5-12-20-15)8-9-17(22)19(4,24)11-6-10-18(2,3)23/h5-10,12-13,17,20,22-24H,11H2,1-4H3/b9-8+,10-6+,14-13-/t17-,19-/m1/s1