SEARCH Articles Figures Tables 2-Substituted alkyl 3- Alkyl substitute Alkylation nucleophilic Alkylation pyrimidines Nucleophile alkyl Nucleophiles alkylations Nucleophiles, alkylation Nucleophilic alkyl substitution Nucleophilic reactivity Nucleophilic substitution reactivity Pyrimidine reactivity Pyrimidine substituted Pyrimidines, alkyl-, reactivity Reactivity nucleophilicity Reactivity substitution Substitution alkylation