1: 3-(bromomethyl)phenylboronic acid With N,N-diethanolaminomethyl polystyrene in dichloromethane T=20°C; 1.66667 h; 2: morpholine in 1-methyl-pyrrolidin-2-one T=20°C; 5 h; 3: in tetrahydrofuran; water T=20°C; Further stages.;

water; silica gel in ethyl acetate T=20°C; 3 h;