1: 4-trifluoromethoxy-aniline; trichloromethyl chloroformate in toluene T=-20 - 20°C; 3.25 h; Heating / reflux; 2: methyl 2-amino-2-methylpropionate hydrochloride With triethylamine in toluene T=20°C; 16 h; Heating / reflux;