ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C33H38N4O7/c1-7-17-13(3)20(11-23-18(8-2)15(5)32(42)36-23)34-22(17)12-21-16(6)25-29(35-21)26(31(41)30(25)40)28-19(9-10-24(38)39)14(4)27(37-28)33(43)44/h8,14,19,23,27,34-35,37H,2,7,9-12H2,1,3-6H3,(H,36,42)(H,38,39)(H,43,44)/p-2/b28-26+/t14-,19-,23?,27-/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C33H38N4O7/c1-7-17-13(3)20(11-23-18(8-2)15(5)32(42)36-23)34-22(17)12-21-16(6)25-29(35-21)26(31(41)30(25)40)28-19(9-10-24(38)39)14(4)27(37-28)33(43)44/h8,14,19,23,27,34-35,37H,2,7,9-12H2,1,3-6H3,(H,36,42)(H,38,39)(H,43,44)/p-2/b28-26+/t14-,19-,23?,27-/m0/s1 could not be loaded.