InChI=1/C27H30N4O2/c1-33-26-10-3-2-9-25(26)31-20-18-30(19-21-31)17-7-6-16-29-27(32)23-13-11-22(12-14-23)24-8-4-5-15-28-24/h2-15H,16-21H2,1H3,(H,29,32)/b7-6+/f/h29H 38599375DC7BDFF5