InChI=1S/C16H31NO3/c1-11(2)8-13(16(19)20)10-15(18)14(17)9-12-6-4-3-5-7-12/h11-15,18H,3-10,17H2,1-2H3,(H,19,20)/t13-,14+,15+/m1/s1