Synonyms:1,3,5,7-Tetraazanaphthalene;Homopurine
99% *data from raw suppliers
There total 1 articles about Pyrimido[5,4-d]pyrimidine (7CI,8CI,9CI) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:
Reference yield: 86.0%
The research focuses on the one-pot synthesis of fused 2-thiouracils, including pyrimidopyrimidines, pyridopyrimidines, and imidazolopyrimidines, which are potentially significant as chemotherapeutic agents. The study aims to expand the knowledge of 2-thiopyrimido[4,5-d]pyrimidines, a class of compounds not previously reported in the literature, and to contribute to the synthesis of biologically active compounds with potential applications in various therapeutic areas. The researchers synthesized several 6-substituted-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 by treating 6-amino-1-methyl-2-thiouracil with primary amines and formalin, and with ethyl 3-aryl-2-cyanoacrylate, respectively. Additionally, 8-substituted-7-hydroxy-3methyl-2-thioxanthines were synthesized by treating 6-amino-1-methyl-5-nitroso-2-thiouracil with benzylidene-anilines. The newly synthesized compounds were subjected to elemental and spectral analyses to confirm their structures and properties. The chemicals used in the process include various primary amines, formalin, ethyl 3-aryl-2-cyanoacrylates, and benzylidene-anilines, among others. The study successfully yielded a series of new compounds with potential biological activities, contributing to the development of novel therapeutic agents.
The research presents a novel and efficient method for synthesizing pyrimido[5,4-d]pyrimidine N-oxides, which are of significant interest in drug development due to their structural similarity to purines and their potential biological activities. The study explores the reaction of benzylhydroxylamine with 6-cyanopurines to form 7-benzyloxy-8-imino-7,8-dihydropyrimido[5,4-d]pyrimidines, which upon treatment with hydrochloric acid, yield the desired N-oxides. The study concludes that the solubility of the hydrochloride of the intermediate pyrimido-pyrimidines in the reaction solvent plays a crucial role in determining the final product, with soluble hydrochlorides leading to the rearranged product and insoluble ones yielding the N-oxides. This work provides a mild and selective approach to synthesizing these heterocyclic compounds, which could have implications for the development of new pharmaceutical agents.
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