InChI=1S/C31H39N5O5/c1-18(2)26-25(36-30(39)27(32-5)31(3,4)40)29(38)35-24(16-20-17-34-23-9-7-6-8-22(20)23)28(37)33-15-14-19-10-12-21(41-26)13-11-19/h6-15,17-18,24-27,32,34,40H,16H2,1-5H3,(H,33,37)(H,35,38)(H,36,39)/b15-14-