The systematic study of pyrimidines began in 1884 with Pinner, who synthesized derivatives by condensing ethyl acetoacetate with amidines. Pinner first proposed the name “pyrimidin” in 1885. 65-86-1, formula is C5H4N2O4, Name is 2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid. The parent compound was first prepared by Gabriel and Colman in 1900, by conversion of barbituric acid to 2,4,6-trichloropyrimidine followed by reduction using zinc dust in hot water. Safety of 2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid.
Mukiza, Janvier;Braband, Henrik;Bolliger, Robin;Nadeem, Qaisar;Habarurema, Gratien;Sezirahiga, Jurdas;Uwambajineza, Tite;Fox, Thomas;Blacque, Olivier;Alberto, Roger research published 《 Complexes of orotic acid and derivatives with the fac-[M(CO)3]+ (M = Re and 99Tc/99mTc) core as radiopharmaceutical probes》, the research content is summarized as follows. authors report the aqueous synthesis of complexes of orotic acid (H2oa) and derivatives (5-fluoroorotic acid (H2foa) and 5-aminoorotic acid (H2aoa)) with the organometallic fac-[M(CO)3]+ (M = Re and 99Tc/99mTc) moiety. Complexes [Re(CO)3(OH2)(oa)]– (1) and [99mTc(CO)3(OH2)(oa)]– (2) were obtained with H2oa in water from [Re(CO)5Br] and [99mTc(CO)3(OH2)3]+ resp. Complexes [M(CO)3(OH2)(foa)]– (M = Re (3), 99mTc (4)) were obtained as for the synthesis of 1 and 2. The structural identities of complexes 1–4 were confirmed by coinjection in the HPLC by UV/Vis detection coupled with a γ-detector. Complex [99Tc(CO)3(OH2)(foa)]– (5) was obtained from [99TcCl3(CO)3]2- and H2foa in water. The structures of 3 and 5 were elucidated by single crystal x-ray crystallog. Coinjection of 4 and 5 assessed the identity of the resp. 99mTc complex. The reaction of 5-aminoorotic acid (H2aoa) with [Re(CO)5Br] in water resulted in the ligand-bridged dimeric complex [Re(μ-aoa)(CO)3]2-2 (6). The reaction of H2aoa with [99mTc(CO)3(OH2)3]+ in water led to the monomeric 99mTc complex only.
Safety of 2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid, Orotic acid anhydrous is a hydrogen bonding interaction that can be found in biological systems. It plays a role in the physiological effects of orotic acid, which is a metabolite of uridine and an intermediate in the synthesis of pyrimidine nucleotides. Orotic acid has antimicrobial properties and has been shown to inhibit enzyme activities involved in energy metabolism, such as polymerase chain reaction (PCR) and adenosine triphosphate (ATP) synthase. Orotic acid also inhibits the growth of bacteria, fungi, and parasites. Orotic acid anhydrous is used for treating myocardial infarcts or brain functions. The untreated group was given no treatment at all.
Orotic acid, also known as orotate or orotsaeure, belongs to the class of organic compounds known as pyrimidinecarboxylic acids. These are pyrimidines with a structure containing a carboxyl group attached to the pyrimidine ring. Orotic acid exists as a solid, slightly soluble (in water), and a moderately acidic compound (based on its pKa). Orotic acid has been found in human liver and pancreas tissues, and has also been primarily detected in saliva, feces, urine, and blood. Within the cell, orotic acid is primarily located in the cytoplasm and mitochondria. Orotic acid exists in all eukaryotes, ranging from yeast to humans. Orotic acid participates in a number of enzymatic reactions. In particular, Orotic acid can be biosynthesized from L-dihydroorotic acid and quinone; which is mediated by the enzyme dihydroorotate dehydrogenase (quinone), mitochondrial. In addition, Orotic acid and phosphoribosyl pyrophosphate can be converted into orotidylic acid through its interaction with the enzyme uridine monophosphate synthetase isoform a. In humans, orotic acid is involved in the pyrimidine metabolism pathway. Orotic acid is also involved in several metabolic disorders, some of which include the mngie (mitochondrial neurogastrointestinal encephalopathy) pathway, dihydropyrimidinase deficiency, UMP synthase deficiency (orotic aciduria), and Beta ureidopropionase deficiency. Outside of the human body, orotic acid can be found in a number of food items such as green vegetables, alaska blueberry, chickpea, and colorado pinyon. This makes orotic acid a potential biomarker for the consumption of these food products. Orotic acid is a potentially toxic compound. Orotic acid has been found to be associated with several diseases known as phosphoenolpyruvate carboxykinase deficiency 1, cytosolic and hyperornithinemia-hyperammonemia-homocitrullinuria; orotic acid has also been linked to several inborn metabolic disorders including n-acetylglutamate synthetase deficiency, lysinuric protein intolerance, and ornithine transcarbamylase deficiency.
Orotic acid appears as white crystals or crystalline powder.
Orotic acid is a pyrimidinemonocarboxylic acid that is uracil bearing a carboxy substituent at position C-6. It has a role as a metabolite, an Escherichia coli metabolite and a mouse metabolite. It derives from a uracil. It is a conjugate acid of an orotate., 65-86-1.
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia