1: 4-fluoro-1,3-dihydro-2H-indol-2-one With n-butyllithium; lithium chloride in tetrahydrofuran; hexane T=-78°C; 0.25 h; 2: methyl iodide in tetrahydrofuran; hexane T=20°C; 16 h; Further stages.;

1: With lithium hydride in N,N-dimethyl-formamide T=120°C; 7 h; 2: With hydrogenchloride; water in ethyl acetate; N,N-dimethyl-formamide Product distribution / selectivity;