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