InChI=1S/C21H31N3O3/c1-13(2)19(22-5)20(25)24-16(12-27-21(26)14(3)4)10-15-11-23-18-9-7-6-8-17(15)18/h6-9,11,13-14,16,19,22-23H,10,12H2,1-5H3,(H,24,25)/t16-,19-/m0/s1