InChI=1/C19H25N5O3/c1-14-11-24(12-15(2)27-14)19(26)22-17-5-3-4-16(10-17)21-18(25)6-8-23-9-7-20-13-23/h3-5,7,9-10,13-15H,6,8,11-12H2,1-2H3,(H,21,25)(H,22,26)/t14-,15-/m1/s1/f/h21-22H 2486572700446D90