SEARCH Articles Figures Tables Isoquinolines nucleophilic substitution, regioselectivity Nucleophilic substitution reactivity/regioselectivity Quinolines nucleophilic substitution, regioselectivity Regioselective nucleophilic substitution Regioselective nucleophilic substitution Regioselective substitution Regioselectivity nucleophilic aromatic substitution Regioselectivity substitution