1: 4,6-dichloropyrimidine-2-(methylthio)pyrimidine With Rink-amide derivatised polystyrene resin; tetrabutylammomium bromide; N-ethyl-N,N-diisopropylamine in N,N-dimethyl-formamide T=90°C; Solid phase reaction; substitution; 2: benzylamine With 1-methyl-pyrrolidin-2-one T=140°C; Solid phase reaction; substitution; 15 h; 3: With water; trifluoroacetic acid in dichloromethane T=20°C; Solid phase reaction; resin cleavage; 3 h;