InChI=1/C21H30N4O3/c1-15-6-5-9-25(10-7-15)21(26)23-19(20-22-8-11-24(20)2)16-12-17(27-3)14-18(13-16)28-4/h8,11-15,19H,5-7,9-10H2,1-4H3,(H,23,26)/t15-,19+/m1/s1/f/h23H 118503B3AF360118