1: With pyridine in tetrahydrofuran T=20°C; 2 h; 2: With water; trifluoroacetic acid in acetonitrile 0.333333 h; Further stages.;

1: N2-(2-phenyl-1,3-thiazol-4-yl)carbonyl-2-aminoacrylamide With pyridine; trifluoroacetic anhydride in tetrahydrofuran 2: methanol in tetrahydrofuran Further stages.;