1: 3-Amino-4-fluorobenzoic acid With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride in N,N-dimethyl-formamide T=20°C; 1 h; 2: anhydrous cyclopropylamine in N,N-dimethyl-formamide T=20°C;