InChI: | InChI=1/C42H50N4O4/c1-6-24-16-23-20-42(41(48)50-5)38-28(14-15-46(21-23)39(24)42)31-17-26(12-13-34(31)44-38)30-18-29-25(7-2)22-45(3)35(36(29)40(47)49-4)19-32-27-10-8-9-11-33(27)43-37(30)32/h7-13,17,23-24,29-30,35-36,39,43-44H,6,14-16,18-22H2,1-5H3/b25-7- |