InChI=1/C19H26N4O4/c1-18(2,3)12-6-8-13(9-7-12)19(4)15(25)23(17(27)22-19)11-10-14(24)21-16(26)20-5/h6-9H,10-11H2,1-5H3,(H,22,27)(H2,20,21,24,26)/t19-/m1/s1/f/h20-22H 282CB686484946A2