InChI=1/C21H24N2O4/c1-15(19(24)22-26)23-13-12-21(2,20(23)25)17-8-10-18(11-9-17)27-14-16-6-4-3-5-7-16/h3-11,15,26H,12-14H2,1-2H3,(H,22,24)/t15-,21+/m1/s1/f/h22H D0FF2261B27D39F2