InChI=1S/C27H33N3O4/c1-23(2)10-12-33-20-17(34-23)8-7-16-19(20)28-22(32)27(16)14-25-15-30-11-6-5-9-26(30,21(31)29-25)13-18(25)24(27,3)4/h7-8,10,12,18H,5-6,9,11,13-15H2,1-4H3,(H,28,32)(H,29,31)/t18-,25-,26+,27-/m1/s1