InChI=1/C16H20N2O3/c1-9(2)21-15(19)13-11(4)17-16(20)18-14(13)12-7-5-10(3)6-8-12/h5-9,14H,1-4H3,(H2,17,18,20)/t14-/m1/s1/f/h17-18H	4E685321396A23CE