1: Furane-3-carboxylic acid With HATU in N,N-dimethyl-formamide T=20°C; 0.25 h; 2: 3-iodo-4-methylphenylamine With benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine in N,N-dimethyl-formamide T=20°C; 16 h;