InChI=1/C15H21N5O3/c16-12-18-10(19-13(17)20-12)6-23-11(21)14-2-8-1-9(3-14)5-15(22,4-8)7-14/h8-9,22H,1-7H2,(H4,16,17,18,19,20)/t8-,9+,14?,15?/f/h16-17H2 51CF6CE41AFB0918