67 h 5 5 n 10 43 found c 53 32 h 5 3 n 10 21 the title compound was prepared following the procedure of example 2 with the exception that 8 chloro 2 3 4 5 tetrahydro 1h pyrido 4 3 b indole was used instead of 8 fluoro 2 3 4 5 tetrahydro 1h pyrido 4 3 b indole and 2 vinylquinoline was used instead of 2 vinylpyridine the product was converted to the dihydrochloride salt mp 187 u00b0 190 u00b0 c analysis for c 22 h 20 cln 3 2hcl h 2 o calculated c 58 37 h 5 19 n 9 27 found c 58 34 h 5 30 n 9 29 the title compound was prepared following the procedure of example 1 with the exception that 3 pyridinylpropyl bromide hydrobromide was used instead of 4 pyridinylbutyl bromide hydrobromide the product was converted to the dihydrochloride salt mp 215 u00b0 218 u00b0 c analysis for c 19 h 20 fn 3 hcl 11 2 h 2 o calculated c 55 74 h 6 11 n 10 26 found c 56 06 h 5 60 n 10 51 the title compound was prepared following the procedure of example 1 with the exception that 3 pyridinylpropyl bromide hydrobromide was used instead of 4 pyridinylbutyl bromide hydrobromide and 8 chloro 2 3 4 5 tetrahydro 1h pyrido 4 3 b indole was used instead of 8 fluoro 2 3 4 5 tetrahydro 1h pyrido 4 3 b indole the product as converted to the dihydrochloride salt mp 240 u00b0 242 u00b0 c analysis for c 19 h 20 cln 3 2hcl calculated c 57 22 h.