Cyanogen - Bromide- and Methyl - Chloroformate-Mediated Synthesis of Some [3]Benzazonino[8,7,6-abc]carbazole, [3]Benzazecino[9,8,7-abc]carbazole, Naphth[1,8,7-def]azonine and Naphth[1,8,7-def]azecine Derivatives.