InChI=1/C28H30N4O4/c33-26(31-25-6-2-1-5-24(25)28(35)30-22-13-14-22)18-32(17-23-4-3-15-36-23)16-19-7-9-20(10-8-19)27(34)29-21-11-12-21/h1-10,15,21-22H,11-14,16-18H2,(H,29,34)(H,30,35)(H,31,33)/p+1/fC28H31N4O4/h29-32H/q+1 0971F56CD5333625