1: 2-nitro-imidazole With potassium tert-butylate in N,N-dimethyl-formamide T=130°C; 0.25 h; 2: 1-chloro-3-fluoro-2-propanol With potassium iodide in N,N-dimethyl-formamide T=80 - 130°C; 1 h;

sodium hydrogencarbonate in water; acetonitrile T=100°C; 1 h;

hexafluoroisopropyl alcohol; benzoic acid fluoride; DBN; C73H100Co2N4O7 in decane; tert-butyl methyl ether; tert-butyl alcohol 12 h; Sonication;