InChI=1/C16H21N2O4/c1-20-11-8-10(9-12(21-2)13(11)22-3)14-17-15(19)16(18-14)6-4-5-7-16/h8-9,14H,4-7H2,1-3H3,(H,17,19)/q-1/t14-/m1/s1/f/h17H 1AECCEDAED9E4600