InChI=1/C19H24N4O4/c20-22-18(25)16(19-8-11-5-12(9-19)7-13(6-11)10-19)21-17(24)14-1-3-15(4-2-14)23(26)27/h1-4,11-13,16H,5-10,20H2,(H,21,24)(H,22,25)/t11?,12?,13?,16-,19?/m0/s1/f/h21-22H B6E174767EB83F87