InChI=1S/C23H34N2O5/c1-2-18(26)7-3-4-8-22(27)24-19(16-25-11-5-6-12-25)23(28)17-9-10-20-21(15-17)30-14-13-29-20/h9-10,15,19,23,28H,2-8,11-14,16H2,1H3,(H,24,27)/t19-,23-/m1/s1