InChI=1/C21H24N2O3/c24-21(17-9-5-2-6-10-17)15-20(16-7-3-1-4-8-16)22-18-11-13-19(14-12-18)23(25)26/h2,5-6,9-14,16,20,22H,1,3-4,7-8,15H2/t20-/m0/s1 613ECC93F47D6031