InChI=1/C20H22N2O3/c1-3-4-8-20-9-7-16(23)17(19(24)25-2)18(20)12-5-6-15-14(11-21-22-15)13(12)10-20/h5-6,11H,3-4,7-10H2,1-2H3,(H,21,22)/t20-/m0/s1/f/h22H CB8F81828B83D988