InChI=1/C21H22N2O3/c1-4-13-22-20-12-6-15-5-9-18(14-19(15)20)26-21(24)23(2)16-7-10-17(25-3)11-8-16/h1,5,7-11,14,20,22H,6,12-13H2,2-3H3/t20-/m1/s1 4FEF47F1A8193237