InChI=1/C20H23N3O3/c1-3-11-23(14-17-9-7-12-26-17)15-20(25)21-13-19(24)22-18-10-6-5-8-16(18)4-2/h1,5-10,12H,4,11,13-15H2,2H3,(H,21,25)(H,22,24)/f/h21-22H 13BF955B0E258689