InChI=1/C20H23N3O4/c1-3-26-18-9-15-8-12(2)27-17(15)10-16(18)23-19(24)14-6-4-13(5-7-14)11-22-20(21)25/h4-7,9-10,12H,3,8,11H2,1-2H3,(H,23,24)(H3,21,22,25)/t12-/m1/s1/f/h22-23H,21H2	7948712D1B7D17A6