InChI=1S/C22H30N2O4/c1-21(2,28-17-6-4-16(27-3)5-7-17)20(26)24-18-14-8-13-9-15(18)12-22(10-13,11-14)19(23)25/h4-7,13-15,18H,8-12H2,1-3H3,(H2,23,25)(H,24,26)/t13-,14-,15+,18-,22-