专利号:US-9920084-B2 优先权日:2011-08-23 标题 :Ionic tags for synthesis of oligoribonucleotides 发明人:DAMHA MASAD J; HASSLER MATTHEW; CHAN TAK-HANG; NANDYALA MALLIKARJUNA REDDY; DONGA ROBERT ALEXANDER 权利人:DAMHA MASAD J; HASSLER MATTHEW; CHAN TAK HANG; NANDYALA MALLIKARJUNA REDDY; DONGA ROBERT ALEXANDER; THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIV; HONG KONG POLYTECHNIC UNIV 摘要:The invention relates to the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. In another aspect, the invention relates to compounds of formula (II) processes for making these compounds, and the use thereof in the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. The invention also relates to methods of synthesis of oligomers, including but not limited to oligopeptides, oligosaccharides and oligonucleotides, particularly oligoribonucleotides and also oligodeoxyribonucleotides, in solution systems, and ionic tag linkers for use in methods provided herein.
专利号:US-8618279-B2 优先权日:2009-01-15 标 题 :Synthesis of 2′,3′— and 3′,5′—cyclic phosphate mono-and oligonucleotides 发明人:LAIKHTER ANDREI; SRIVASTAVA SURESH CHANDRA; SRIVASTAVA NAVEEN 权利人:LAIKHTER ANDREI; SRIVASTAVA SURESH CHANDRA; SRIVASTAVA NAVEEN; CHEMGENES CORP 摘要:The invention provides a novel method for the chemical synthesis of 2′,3′-cyclic phosphate and phosphorothioate of mono and terminated oligonucleotides synthesis. The invention also provides a novel method of for the chemical synthesis of 2′,3′- and 3′,5′-cyclic phosphate and phosphorothioate mononucleotide nucleotides. The process is based on quick and efficient cyclization of phosphoramidate moiety and neighboring hydroxyl group. The present invention is directed towards the synthesis of high purity DNA and RNAs, specifically to introduce cyclic phosphate at 3′-end of oligonucleotides. Such DNA and RNA's have extensive application in therapeutics, diagnostics, drug design, and selective inhibition of an RNA sequence within cellular environment, in pre-tRNA cleavage and in ribozyme ligation. The 2′,3′-cyclic phosphate nucleosides are involved in a vast number of applications in molecular biology in general and mammalian cells in particular. The invention also envisions providing kits comprising at least one composition disclosed in the present invention.
专利号:US-7329515-B2 优先权日:2003-04-21 标题 :Solid support for the synthesis of 3′-amino oligonucleotides 发明人:LEUCK MICHAEL; WOLTER ANDREAS 权利人:SIGMA ALDRICH CO 摘要:The present invention discloses novel methods and solid supports for the synthesis of 3′-amino oligonucleotides. The novel supports are based on an unsubstituted or ring-substituted hydroxymethylbenzoyl linker element wherein the hydroxymethyl group is esterified to a solid phase bound carboxylic acid and the carbonyl group is linked to an amino alcohol as an amide. Oligonucleotides are conveniently synthesized on the novel supports with no modifications in the standard phosphoramidite synthesis scheme. The ester function of the support is cleaved under the alkaline deprotection conditions for oligonucleotides to provide a free hydroxymethyl group that aids in the release of the 3′-amino oligonucleotide products with a free amino group through neighbor group participation. The free amino group of the oligonucleotides is available for further conjugation reactions to haptens, reporter groups, surfaces or other small molecules or biomolecules. The methods provided are particularly mild, do not require any modifications in standard protocols for the synthesis and deprotection of oligonucleotides, provide the 3′-amino oligonucleotides free of side products and do not introduce chiral centers to the oligonucleotides.
专利号:WO-9423054-A1 优先权日:1993-04-05 标 题:Synthesis of tetrasaccharide 发明人:NILSSON KURT 权利人:PROCUR AB; NILSSON KURT 摘要:The present invention relates to a method for synthesis of a tetrasaccharide or a derivative thereof, which includes the initial synthesis with two different glycosidases of two disaccharides, or derivatives thereof, which after modification are used as donor and acceptor in chemical synthesis of the tetrasaccharide or its derivative.
专利号:US-2004152905-A1 优先权日:2003-01-31 标题:Universal building blocks and support media for synthesis of oligonucleotides and their analogs 发明人:GUZAEV ANDREI P; MANOHARAN MUTHIAH 摘要:Compounds for the synthesis of oligomeric compounds, particularly oligonucleotides and chemically modified oligonucleotide analogs, are provided. In addition, methods for functionalization of a support medium with a first monomeric subunit and methods for the synthesis of oligomeric compounds utilizing the novel compounds bound to support media are provided.
专利号:US-2022401910-A1 优先权日:2019-12-02 标 题 :Apparatus for the synthesis of oligonucleotides and process for the preparation thereof 发明人:AEMISSEGGER ANDREAS; DUGOVIC BRANISLAV; JAUKER MARIO; STAUSS MARTIN 权利人:BACHEM AG 摘要:The present invention provides apparatuses and methods for the synthesis of oligonucleotides and related compounds. In particular, the present invention allows to effectively prepare reagents to be fed into an apparatus for the synthesis of such oligomers.
参考标题:One-Pot Conversion Of Aldehydes To Nitriles Mediated By Ticl 4 作者:Antonella Leggio,Emilia Lucia Belsito,Sonia Gallo,Angelo Liguori |发布日期:2017.4 摘要:Synthesis Of Nitriles From The Corresponding Aliphatic And Aromatic Aldehydes Has Been Developed. The Titanium Tetrachloride Assisted Reaction Was Conducted In Pyridine Under Mild Conditions Using Various Types Of Aldehyde Precursors And Gave The Corresponding Nitriles In Excellent Yields. The Application Of The Adopted Protocol To Isolated Aldoxime Intermediates Provided The Corresponding Nitriles With
合成参考文献
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