InChI=1/C18H26N2O4/c1-18(2,12-20-17(21)19-11-14-4-3-7-22-14)13-5-6-15-16(10-13)24-9-8-23-15/h5-6,10,14H,3-4,7-9,11-12H2,1-2H3,(H2,19,20,21)/t14-/m1/s1/f/h19-20H FD65A6FC52EF020E