InChI=1/C21H24N2O4/c1-13(11-14-3-5-15(27-2)6-4-14)22-12-19(25)16-7-9-18(24)21-17(16)8-10-20(26)23-21/h3-10,13,19,22,24-25H,11-12H2,1-2H3,(H,23,26)/t13-,19+/m1/s1/f/h24h,22-23H CB74D89E1FB4037C