InChI=1/C15H27N3O3/c1-4-6-18(7-5-2)13-9-11(15(20)21)8-12(16)14(13)17-10(3)19/h9,12-14H,4-8,16H2,1-3H3,(H,17,19)(H,20,21)/t12-,13+,14+/m0/s1/f/h17-18H 1DBC14DA2D9DD083