InChI=1/C17H26N2O3/c1-3-17(4-2)13(20)18-14(22-17)19-15-6-11-5-12(7-15)9-16(21,8-11)10-15/h11-12,21H,3-10H2,1-2H3,(H,18,19,20)/t11-,12+,15?,16?/f/h19H AA57CE62E70DDA12