InChI=1/C21H30N2O4/c1-3-4-10-25-12-13-26-16-18-7-5-8-19(15-18)23-21(24)22-17(2)14-20-9-6-11-27-20/h5-9,11,15,17H,3-4,10,12-14,16H2,1-2H3,(H2,22,23,24)/t17-/m0/s1/f/h22-23H 1920B8FCEE67830A