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Showing 1 to 20 of 72 for “"PURINES"”.
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Modified Purines. Rearrangement Through 5-Substituted Purine Intermediates
A novel rearrangement has been utilized for the synthesis of imidazo{1,5-a}-1,3,5-triazinones (1) which are analogues of N(9)-substituted guanines, hypoxanthines, and xanthines. Structures were established in this series (1) on the basis of precursors and routes of synthesis, infrared spectra, mass …
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Durabilidad de morteros de cemento en contacto con purines de cerdo
… como discontinuos o balsas de almacenamiento de purines, de hormigón en masa o armado o incluso de fábrica de ladrillo con revestimiento de mortero. Todos estos elementos se encuentran en ambientes de diversa agresividad, tales como estiércoles, purines, productos de limpieza o desinfección, …
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Effect of Procedural Pain on Purines, MDA and Allantoin in Premature Infants
… morbidity on the urinary concentration of purines and allantoin. We found infants born at earlier gestational ages had significantly higher urinary purine and allantoin concentrations compared to infants born at later gestations, after 31 weeks. Weight for gestational age also altered the …
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A Proton Exchange Between Purines and Water and Its Application to Biochemistry
Made available in DSpace on 2014-12-09T17:36:04Z (GMT). No. of bitstreams: 1 6812193.pdf: 2384437 bytes, checksum: 6eb96185d0a61017adcc97ac0c70fde8 (MD5) Previous issue date: 1968
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N9 Alkylation and Glycosylation of Purines; A Practical Synthesis of 2-Chloro-2'-deoxyadenosine
… and highly stereoselective glycosylation of purines with 2-deoxy-3,5-di-O-(p-toluoyl)-a-D-erythro-pentofuranosyl chloride was achieved.</p> <p>(d) Using the above method, a low cost and efficient synthesis of 2-chloro-2'-deoxyadenosine (2-CdA, cladribine) was accomplished with an overall …
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The Effect of Pressure on The Electronic Structure of Some Purines, Pyrimidines, and Aromatic Hydrocarbons
Made available in DSpace on 2015-05-12T22:32:05Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7511564.PDF: 4395169 bytes, checksum: ac96475062316eaf2fc516c99689a05d (MD5) Previous issue date: 1974
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A Comparison of Functionally Divergent Forms of the Purine Biosynthesis Enzyme PurE.
Purines are the basic building block for essential biomolecules such as DNA, RNA, NADH, CoA, and several essential vitamin cofactors. Most organisms have the ability to synthesize purines through the de novo purine biosynthesis pathway.
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Evaluación de impactos ambientales en la industria porcina y propuestas de mejora en el manejo de purines. Estudio de caso
… and waste, this farm generates 103,255m3 of purines annually. The slurries are waste generated from the cleaning of the feces and urine of the pig with water inside the cages where the pigs are housed, these are moved out of the cages, towards some type of separation system, for later storage …
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Screening for purine transporters in S. aureus
… pathogenesis depends on its ability to acquire purines to cause disease. In this study, I screened a library of individual mutants under purine import-dependent conditions by inhibiting the purine biosynthesis using the pharmacological agents methotrexate and 6-mercaptopurine and supplementing …
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Isolation and Identification of the Abnormal Opaque material in the White Mutant of Siamese Fighting Fish, Betta Splendens
… coloration in a variety of animals. These purines may also be abnormally stored in body integuments. A new mutation, opaque (Op), has been described for the Siamese Fighting Fish, Betta splendens. A build-up of the white material occurs as the fish ages especially in the head and eyes. …
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DESIGN, SYNTHESIS OF SUBSTITUTED PURINES, PHENYLPYRROLIDINE DERIVATIVES, CYCLIC AND ACYCLIC BIS(p-NITROBENZENESULFONAMIDES), AND IN VITRO ANTI-CANCER ACTIVITY AGAINST LUNG, BREAST AND PROSTATE CELL LINES
Al momento sono stati classificati più di 100 forme di cancro secondo il tipo di cellula inizialmente affetta. Le patologie tumorali sono caratterizzate da una crescita cellulare incontrollata che porta alla formazione di grumi o masse di tessuto che danneggiano l organismo. Lo sviluppo di nuovi …
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