1: 3-bromo-2-methylbenzenecarboxylic acid With lithium diisopropyl amide in tetrahydrofuran T=-50°C; 2: methyl iodide in tetrahydrofuran Further stages.;

1: 3-bromophenylacetic acid With 2,2,6,6-tetramethylpiperidinyl-lithium in tetrahydrofuran T=-50°C; 1 h; 2: ethyl iodide in tetrahydrofuran T=-50 - 20°C; Further stages.;

sodium hydroxide