InChI=1/C21H32N4O2/c1-21(2,3)15-9-4-5-10-16(15)23-19(26)20(27)24-17-11-8-12-22-18(17)25-13-6-7-14-25/h8,11-12,15-16H,4-7,9-10,13-14H2,1-3H3,(H,23,26)(H,24,27)/t15-,16+/m0/s1/f/h23-24H 9EA8AA689948E66F