Several 6-substitued-1-methyl-2,5,7,8-tetrahydro-2-thiopyrimido[4,5-d]pyrimidine-4-ones and ethyl 7-amino-5-aryl-1-methyl-4-oxo-1,2,3,4-tetrahydro-2-thiopyrido[2,3-d]pyrimidines-6-carboxylates were synthesized by treatment of 6-amino-1-methyl-2-thiouracil with primary amines and formalin (40%), and with ethyl 3-aryl-2-cyanoacrylate respectively. 8-Substituted-7-hydroxy-3- methyl-2-thioxanthines were synthesized by the treatment of 6-amino-1-methyl-5-nitroso-2-thiouracil with benzylidene-anilines. Elemental and spectral analyses were performed for the new compounds.
使用6-取代-1-甲基-2,5,7,8-四氢-2-硫嘧啶[4,5-d]嘧啶-4-酮和乙基7-氨基-5-芳基-1-甲基-4-氧代-1,2,3,4-四氢-2-硫吡咯[2,3-d]嘧啶-6-羧酸酯处理6-氨基-1-甲基-2-硫尿嘧啶与主要胺和福尔马林(40%),以及与乙基3-芳基-2-氰基丙烯酸酯分别。8-取代-7-羟基-3-甲基-2-噻吩酮通过将6-氨基-1-甲基-5-亚硝基-2-硫尿嘧啶与苄基苯亚胺处理而成。对新化合物进行了元素和光谱分析。