InChI=1/C21H28N2O5/c1-3-4-11-27-17-10-6-5-9-16(17)19-18(14(2)22-21(25)23-19)20(24)28-13-15-8-7-12-26-15/h5-6,9-10,15,19H,3-4,7-8,11-13H2,1-2H3,(H2,22,23,25)/t15-,19+/m1/s1/f/h22-23H DDDC932F5CD70FDB