InChI=1/C16H32N2O3/c1-7-16(8-2,15(20)21)10-14(19)17-11-13(18(5)6)9-12(3)4/h12-13H,7-11H2,1-6H3,(H,17,19)(H,20,21)/t13-/m0/s1/f/h17-18H 3BB074401CF2077E