InChI=1/C15H26N2O3/c1-2-11-6-8-15(9-7-11,14(19)20)17-13(18)12-5-3-4-10-16-12/h11-12,16H,2-10H2,1H3,(H,17,18)(H,19,20)/t11?,12-,15?/m1/s1/f/h16-17H 41D03633C60A987D