K. Alarcon et al., 2-amino-6-(1,2,4-triazol-4-yl)-purine: a useful intermediate in the synthesis of 9-alkylguanines, TETRAHEDR L, 41(37), 2000, pp. 7211-7215
2-Amino-6-(1,2,4-triazol-4-yl)purine, prepared from 2,6-diaminopurine, was
regioselectively alkylated at position 9. Subsequent alkaline hydrolysis af
forded 9-alkylguanines in high yield. (C) 2000 Elsevier Science Ltd. All ri
ghts reserved.