InChI=1/C20H26N4O4/c1-4-11(2)17(23-20(21)27)18(25)24-8-7-16-14(10-24)13-9-12(19(26)28-3)5-6-15(13)22-16/h5-6,9,11,17,22H,4,7-8,10H2,1-3H3,(H3,21,23,27)/t11-,17+/m0/s1/f/h23H,21H2 F28F23E693979B7D