InChI=1S/C50H46N6O4/c1-52-39(28-33-18-8-4-9-19-33)45(59)55-41(43(52)57)30-49(35-22-12-14-24-37(35)51-47(49)55)50-31-42-44(58)53(2)40(29-34-20-10-5-11-21-34)46(60)56(42)48(50)54(38-25-15-13-23-36(38)50)27-26-32-16-6-3-7-17-32/h3-27,39-42,47-48,51H,28-31H2,1-2H3/b27-26+