InChI=1/C20H28N4O2/c1-3-5-23-18-16(19(25)24(6-4-2)20(23)26)21-17(22-18)15-13-7-11-8-14(15)10-12(11)9-13/h11-15H,3-10H2,1-2H3,(H,21,22)/f/h21H 79E954DF94134BD5