SEARCH Articles Figures Tables 7-Alkyl purine-2,4- -diones Alkylated purines Alkylation of purines Alkylation purines Alkylation purines Purine nucleoside, alkylation Purine, 6-chlorocoupling reactions with primary alkyl Grignard reagents Purine, 6-methylthiocoupling reactions with primary alkyl Grignard reagents Purine, 9-alkyl-6-iodoSrnI reaction Purines 7-alkyl- from Purines N-alkylation