InChI=1/C17H20N2O5/c1-4-23-15(21)17(19-12(3)20,16(22)24-5-2)10-13-6-8-14(11-18)9-7-13/h6-9H,4-5,10H2,1-3H3,(H,19,20 diethyl (acetylamino)(4-cyanobenzyl)malonate propanedioic acid, (acetylamino)[(4-cyanophenyl)methyl]-, diethyl ester