InChI=1/C16H20N2O3/c19-16(17-11-12-5-2-1-3-6-12)18-13-7-4-8-14-15(13)21-10-9-20-14/h1-2,4,7-8,12H,3,5-6,9-11H2,(H2,17,18,19)/t12-/m1/s1/f/h17-18H	5C12B9AD298E1B0D