InChI=1S/C21H24N4O6/c1-4-31-18-15-16(13-6-5-11(8-22)7-14(13)30-3)21(29,19(23)27)20(2,28)25-17(15)12(10-26)9-24-18/h5-7,9,16,25-26,28-29H,4,10H2,1-3H3,(H2,23,27)/t16-,20?,21?/m0/s1