%0 Journal Article %T A Novel Synthesis of 1,2,4-Triazolopteridines %A Tayseer A. Abdallah %A Manal A. Darwish %A Hamdi M. Hassaneen %J Molecules %D 2002 %I MDPI AG %R 10.3390/70600494 %X Reaction of 1,2-dihydro-2-thioxopteridin-4(3H)-one, 6,7-dimethyl-1,2-dihydro-2-thioxopteridin-4(3H)-one and 6,7-diphenyl-1,2-dihydro-2-thioxopteridin-4(3H)-one with hydrazonoyl halides affords the title compounds in good yields. %K Hydrazonoyl halides %K 2-thioxopteridine %K triazolopteridines %U http://www.mdpi.com/1420-3049/7/6/494