InChI=1S/C19H28N2O5/c1-13(2)10-11-20-18(25)15(9-8-14-6-4-3-5-7-14)21-19(26)16(22)12-17(23)24/h3-7,13,15-16,22H,8-12H2,1-2H3,(H,20,25)(H,21,26)(H,23,24)/t15-,16+/m1/s1