InChI=1S/C22H35NO4/c1-2-3-4-5-6-9-13-20(25)14-10-7-8-11-15-21(26)16-12-17-22(27)23-18-19-24/h6-11,14-15,19-21,25-26H,2-5,12-13,16-18H2,1H3,(H,23,27)/b8-7+,9-6-,14-10+,15-11-