1: With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride in N,N-dimethyl-formamide T=20°C; 24 h; 2: With sodium hydrogencarbonate in water; N,N-dimethyl-formamide

thionyl chloride 1.) reflux, 2 h, 2.) CH2Cl2, RT, overnight; Yield given. Multistep reaction;