1: diethyl 2-acetylaminomalonate With sodium hydride in N,N-dimethyl-formamide T=20°C; 1 h; Inert atmosphere; 2: 4'-(2-iodoethyl)octanophenone in N,N-dimethyl-formamide T=60°C; 2 h; Inert atmosphere;

sodium ethanolate in ethanol T=60°C; 1 h; Inert atmosphere;