CAS: 18156-74-6; 1-(Trimethylsilyl)-1H-Imidazole

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54925-64-3 37067-95-1 81452-04-2

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1,3-Bis(Trimethylsilyl)Imidazolium Chloride 反应生成三甲基硅咪唑
参考文献:Synthesis And Structure Of Silyl-Substituted Imidazol-2-Ylidenes And Their Precursors
标题:Synthesis And Structure Of Silyl-Substituted Imidazol-2-Ylidenes And Their Precursors
摘要:Previously Unknown Heterocyclic Carbenes And Their Precursors Containing A Silicon Atom In The Side Chain Were Prepared. Their Structures Were Studied By Multinuclear H-1,C-13,N-15,And Si-29 NMR Spectroscopy.
Doi:10.1134/s1070363207060242

专利信息

专利号:US-7691316-B2
优先权日:2004-02-12
标 题:Devices and methods for the synthesis of nucleic acids
发明人：NGO NAM; JAQUINOD LAURENT; WANG HONG
权利人:CHEMISTRY & TECHNOLOGY FOR GEN
摘要:Cylindrical devices (frits) are prepared by embedding aminoalkyl- or mercaptoalkyl-modified Controlled Pore Glass (CPG) in high-density polyethylene. Methods and devices pertaining to their use in the synthesis of nucleic acids are described. A reusable synthesis column or a reusable 96-chamber synthesis plate have been designed to hold one to 96 of the said frits that are inserted reproducibly into the synthesis chambers with a frit insertor. A short gas surpressure is required to drive entry of chemical reagents into the said frit. Reagents are retained into the frit until a second, longer surpressure is applied to drain the said reagents.

专利号:US-2023287032-A1
优先权日:2020-08-14
标 题:Synthesis of fluorinated nucleotides
发明人：CHUNG CHEOL KEUN; LIU ZHIJIAN; MALIGRES PETER E; MAO EDNA; OBLIGACION JENNIFER V; PHILLIPS ERIC M; PIRNOT MICHAEL; POIRIER MARC; SONG ZHIGUO JAKE; WANG TAO
权利人:CHUNG CHEOL KEUN; LIU ZHIJIAN; MALIGRES PETER E; MAO EDNA; OBLIGACION JENNIFER V; PHILLIPS ERIC M; PIRNOT MICHAEL; POIRIER MARC; SONG ZHIGUO JAKE; WANG TAO; MERCK SHARP & DOHME LLC
摘要:The present invention relates to efficient processes useful in the preparation of fluorinated nucleosides, such as (O—{[(2R,3R,4S,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-3-hydroxyoxolan-2-yl]methyl}O,O-dihydrogen phosphorothioate, also known as 2′-(S)-fluoro-thio-adenosine monophosphate or 2′-F-thio-AMP. Such fluorinated nucleosides may be useful as a biologically active compound and or as an intermediate for the synthesis of more complex biologically active compounds. The present invention also encompasses intermediates useful in the disclosed synthetic processes and the methods of their preparation.

专利号:US-6844461-B2
优先权日:2001-07-30
标 题:Synthesis of A-ring synthon of 19-NOR-1α,25-dihydroxyvitamin D3 from (D)-glucose
发明人：DELUCA HECTOR F; SHIMIZU MASATO; YAMADA SACHIKO
权利人:WISCONSIN ALUMNI RES FOUND
摘要:The present invention provides a method for the synthesis of an A-ring synthon phosphine oxide used in the preparation of 19-nor vitamin D compounds, and to novel synthetic intermediates formed during the synthesis. The new method prepares the phosphine oxide from (D)-glucose.

专利号:US-4937367-A
优先权日:1987-07-15
标 题:Process for the preparation of intermediates for the synthesis of fosfomycin
发明人：CASTALDI GRAZIANO; GIORDANO CLAUDIO
权利人:ZAMBON SPA
摘要:A process is described for the preparation of intermediates useful in the synthesis of Fosfomycin. n More particularly, an enantioselective process is described for the preparation of derivatives of (1S,2S)-1,2-dihydroxypropyl-phosphonic acid of formula ##STR1## wherein R 2 and R 3 have the meanings reported in the specification.

专利号:US-5086191-A
优先权日:1991-05-28
标题 :Intermediates for the synthesis of 19-nor vitamin D compounds
发明人：DELUCA HECTOR F; SCHNOES HEINRICH K; PERLMAN KATO L
权利人:WISCONSIN ALUMNI RES FOUND
摘要:New intermediate compounds that can be used effectively for the synthesis of a broad range of 1 alpha -hydroxy-19-nor-vitamin D compounds. These novel intermediates are characterized by a group selected from hydroxy methyl (-CH2OH), carboxaldehyde (-CHO), and carboxy ester (-COOAlkyl) at the carbon 22 position of the side chain of a 19-nor-vitamin D nucleus. Intermediates of this type are useful for the introduction of side chain units and thus represent important synthons for the preparation of many different 19-nor-vitamin D compounds.

专利号:US-10899773-B2
优先权日:2014-12-19
标 题 :Total synthesis of trioxacarcin DC-45-A2 and preparation of trioxacarcin analogs
发明人：NICOLAOU KYRIACOS C; CAI QUAN
权利人:UNIV RICE WILLIAM M
摘要:In one aspect, the present invention provides novel derivatives of trioxacarin analogs of the formula (I) wherein the variables are as defined herein. The application also provides compositions, methods of treatment, and methods of synthesis thereof.