InChI=1/C18H24N4O4/c1-19-15(23)18(8-9-18)16(24)21-12-4-6-13(7-5-12)22-17(25)20-11-14-3-2-10-26-14/h4-7,14H,2-3,8-11H2,1H3,(H,19,23)(H,21,24)(H2,20,22,25)/t14-/m1/s1/f/h19-22H 2F58B9780956ADA2