1: 3-(1-Methyl-1,2,3,6-tetrahydro-pyridin-4-yl)-1H-indole-5-carbonitrile With sodium hydride in N,N-dimethyl-formamide T=0 - 20°C; 1 h; 2: benzenesulfonyl chloride in N,N-dimethyl-formamide T=20°C; 4 h;