InChI=1S/C21H24N4O5/c1-5-30-18-15-16(13-7-6-12(9-22)8-14(13)29-4)21(28,19(23)26)20(3,27)25-17(15)11(2)10-24-18/h6-8,10,16,25,27-28H,5H2,1-4H3,(H2,23,26)/t16-,20?,21?/m0/s1