InChI=1/C15H20N2O4/c1-11-7-8-14(13(9-11)17(19)20)21-10-15(18)16-12-5-3-2-4-6-12/h7-9,12H,2-6,10H2,1H3,(H,16,18)/f/h16H	04BB38DAD8E3D429