SEARCH Articles Figures Tables 2- Substituted-7- perhydropyrido pyrazine By Hydrolysis of Other Substituted Pyrazines Nucleophilic substitution—continued of pyrazines Pyrazine 2-chloro-, nucleophilic substitution Pyrazine nucleophilic substitution of Pyrazine radical substitution Pyrazine substitution Pyrazine substitution reactions Pyrazines 2-chloro-, nucleophilic substitution Pyrazines substitution