InChI=1/C16H20N2O5/c1-10(11-4-5-12-14(9-11)23-8-7-22-12)15(19)17-18-16(20)13-3-2-6-21-13/h4-5,9-10,13H,2-3,6-8H2,1H3,(H,17,19)(H,18,20)/t10-,13+/m0/s1/f/h17-18H AC22A343183AA22A