InChI=1/C20H28N4O3/c1-13-6-2-4-8-16(13)23-20(27)24-18(25)12-21-17-9-5-3-7-15(17)19(26)22-14-10-11-14/h3,5,7,9,13-14,16,21H,2,4,6,8,10-12H2,1H3,(H,22,26)(H2,23,24,25,27)/t13-,16-/m1/s1/f/h22-24H A127370E9A5F2C4E