InChI=1S/C17H27NO4/c1-3-5-9-22-13-8-6-7-12-14(13)16(17(20)21)18-15(12)11(4-2)10-19/h10-13,15,18H,3-9H2,1-2H3,(H,20,21)/t11-,12+,13+,15+/m0/s1