CAS: 591-55-9; 5-Aminopyrimidine

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5-氨基-2,4-二氯嘧啶置于palladium On Activated Charcoal体系中,化学反应生成 5-氨基嘧啶
参考文献:354. 5-氨基嘧啶的新合成及其化学性质
标题:354. 5-氨基嘧啶的新合成及其化学性质
摘要:
DOI:10.1039/jr9510001565

专利信息

专利号:US-9469614-B2
优先权日:2011-10-27
标 题:Synthesis of triazolopyrimidine compounds
发明人：ZUPANCIC BORUT; MARAS NENAD; STERK DAMJAN
权利人:LEK PHARMACEUTICALS
摘要:The present invention relates to the field of organic synthesis and describes the synthesis of specific triazolopyrimidine compounds and intermediates thereof as well as related derivatives.

专利号:US-2003162992-A1
优先权日:2001-12-14
标 题 :Preparation of intermediates useful in the synthesis of antiviral nucleosides
发明人：WATANABE KYOICHI A; DU JINFA
摘要:The present invention is an efficient process for the manufacture of α-acyloxyacetaldehyde, a key intermediate in the synthesis of 1,3-oxathiolane and 1,3-dioxolane nucleosides.

专利号:EP-1501848-B1
优先权日:2002-05-08
标 题 :Synthesis of locked nucleic acid derivatives
发明人：SORENSEN MADS DETLEF; WENGEL JESPER; KOCH TROELS; CHRISTENSEN SIGNE M; ROSENBOHM CHRISTOPH; PEDERSEN DANIEL SEJER
权利人:SANTARIS PHARMA AS
摘要:The invention relates to a novel strategy for the synthesis of Locked Nucleic Acid derivatives, such as alpha-L-oxy-LNA, amino-LNA, alpha-L-amino-LNA, thio-LNA, alpha-L-thio-LNA, seleno-LNA and methylene LNA, which provides scalable high yielding reactions utilising intermediates that also can produce other LNA analogues such as oxy-LNA. Also, the compounds of the formula X are important intermediates that may be reacted with varieties of nucleophiles leading to a wide variety of LNA analogues. (Formula I)

专利号:US-5350851-A
优先权日:1992-03-16
标题 :Intermediates and a process for synthesis of tetrahydropteridine C6-stereoisomers, including (6S)-tetrahydrofolate and N5-formyl-(6S)-tetrahydrofolate
发明人：BAILEY STEVEN W; AYLING JUNE E
权利人:UNIV SOUTH ALABAMA
摘要:Intermediates and a process for the synthesis of 6-monosubstituted tetrahydropteridine C6-stereoisomers, including (6S)-tetrahydrofolic acid. The intermediates are shown in their two enantiomeric forms as follows: ##STR1## wherein R 1 and R 2 are the same or different and represent hydrogen, methyl, hydroxy, amino, alkyl or dialkylamino, alkoxy, benzyloxy, or benzylthio; R 3 represents an alkene, alkyne, cycloalkyl, benzyl, alkyl (substituted with hydroxy, acetoxy, benzyloxy, alkoxy, alkylthio, amino, carboxy, oxo, or phosphate), a protected aldehyde, or ##STR2## wherein n=1 or 2, R 4 is hydrogen, formyl, methyl, or propargyl, and ZZ represents an amino acid or amino acid polymer.

专利号:US-10131638-B1
优先权日:2018-03-12
标 题:Synthesis of AZO intermediate
发明人：CARUANA PATRICK A; STERN ALFRED G; ZAITA ALEX J; VO THAO
权利人:US NAVY
摘要:A synthesis for an azo intermediate, 5,5′-azobis(4-chloropyrimidine) is disclosed. 5,5′-azobis(4-chloropyrimidine) is a relatively stable azo compound in that decomposition does not occur until about 194° C. 5,5′-azobis(4-chloropyrimidine) is a product of oxidative dimerization of 5-amino-4-pyrimidine, which a water soluble compound. The azo intermediate is formed in an aqueous solution, but the azo intermediate is substantially insoluble in water; and as it forms it separates producing a reaction mixture that is a slurry. The azo intermediate is isolated by filtration. The azo intermediate is marginally soluble in acetone. The yield is at least 18%, and the oxidizing agent (bleach) is inexpensive, reaction conditions do not require extreme heat or cold, which taken together make the azo intermediate suitable for scaling up.

专利号:EP-1105359-B1
优先权日:1998-08-21
标 题:Solid phase synthesis of compounds by carbon-carbon bond forming mitsunobu reactions
发明人：CHATURVEDI SURENDRAKUMAR
权利人:PE CORP NY
摘要:Processes are provided for the Mitsunobu alkylation reaction of carbon-carbon bond formation between a solid support reagent and a reagent in solution. The resulting novel products can be prepared as a combinatorial library by high-throughput, parallel synthesis under robotic automation. Cleaved or support-bound products are useful precursors to biologically active compounds.