CAS: 767-15-7; 2-Amino-4,6-Dimethylpyrimidine

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2-氯-4,6-二甲基嘧啶置于ammonium Hydroxide体系中,用 乙醇 作为反应溶剂,化学反应生成 2-氨基-4,6-二甲基嘧啶
参考文献:2-氨基-1,3,5-三嗪化学:氢键网络,竹本硫脲催化剂类似物和甜味三嗪的嗅觉图
标题:2-氨基-1,3,5-三嗪化学:氢键网络,竹本硫脲催化剂类似物和甜味三嗪的嗅觉图
摘要:摘要研究了具有庞大烷基取代基的4,6-二烷基-2-氨基-1,3,5-三嗪的化学性质,并探讨了它们作为制备手性硫脲有机催化剂的基础.氨与4,6-二叔丁基-2-氯-1,3,5-三嗪反应反应生成4,6-二叔丁基-1,3,5-三嗪-2-胺根据x射线晶体学分析,氢键网络处于固态.将选定的杂环胺转化为异硫氰酸酯,后者与(s,S)-2-(二甲基氨基)环己胺反应,反应生成对映体纯的1-杂芳基-3-[2-(二甲基氨基)环己基]硫脲,杂芳基代表4,6-二甲基-1,3-二嗪-2-基,4,6-二异丙基-1,3,5-三嗪-2-基或4,6-二叔丁基-1,3,5-三嗪-2-基-丁基.这些化合物是takemotos手性硫脲有机催化剂(1-[3,5-双(三氟甲基)苯基]-3-[(1 S,2 S)-2-(二甲基氨基)环己基]硫脲)的结构类似物.而不是3,5-双(三氟甲基)苯基.它们具有强大的分子内n-h至n-1氢键,如1-(4
DOI:10.1007/s00706-015-1515-7

专利信息

专利号:WO-2024185775-A1
优先权日:2023-03-06
标 题:Long-chain alkenyloxy–substituted benzoyl derivative and oligonucleotide synthesis method using same
发明人：OKADA YOHEI; INANAGA KAZATO; SHOJI Yukiya; MIZUFUNE HIDEYA; SUDO TATSUYA; ADACHI Sota; HOSOI Kazushi
权利人:SPERA PHARMA INC; TOKYO UNIV OF AGRICULTURE AND TECHNOLOGY
摘要:The purpose of the present invention is to provide a novel pseudo–solid phase protecting group that can be used in liquid-phase oligonucleotide synthesis. The purpose of the present invention is also to provide an oligonucleotide synthesis method that uses a novel pseudo–solid phase protecting group.　The present invention provides a compound represented by formula (1) (in which R represents a C14–60 alkenyl group, n represents 2 or 3, m represents 0 or 1, p represents 1 or 2, X represents C, N, O, or S, Y represents a single bond or B(CH 2 ) t * or may form a ring with X, and Z represents a single bond or (CH 2 ) s (s being an integer from 1 to 5)). The present invention also provides an oligonucleotide production method that uses the compound.

专利号:WO-9931124-A1
优先权日:1997-12-12
标 题:Cholic acid-based scaffolds for multidimensional molecular presentation of peptides
发明人：HOEEG-JENSEN THOMAS
权利人:NOVO NORDISK AS; HOEEG JENSEN THOMAS
摘要:A solid phase method for the synthesis of a plurality of differently substituted cholic acid scaffolds with a wide variety of peptide chain, pseudo-peptide chain or peptoid chain substitutents, as leads or compounds of potential therapeutic interest. The substituted cholic acids are prepared by initial solution synthesis of a scaffold holding amino acids with 3 orthogonal protecting groups. Subsequent solid-phase synthesis provides the build-up of the target molecules, either as discretes or in mixture. The molecules may be screened on the resin or cleaved from the resin and then screened in solution. The method disclosed here provides an easy and fast access to highly diverse compounds, potential peptide mimetics and potential leads for compounds of therapeutic interest. The method is amenable to automatization.

专利号:WO-2025082632-A1
优先权日:2023-10-16
标 题:Method and composition for oligonucleotide synthesis
发明人：SAITO MASAHARU
权利人:BACHEM HOLDING AG
摘要:The invention pertains to a method for the synthesis of oligonucleotides using pseudo solid-phase protecting groups, wherein said method comprises a step of subjecting a solution comprising a component (C-0)# to one or more aqueous extractions, wherein the organic phase comprises the component (C-0)#. Said component (C-0)# is a nucleoside or an oligonucleotide, which is covalently bonded to a pseudo solid-phase protecting group and comprises a free backbone hydroxyl group. The aqueous phase of each of said one or more aqueous extractions has a pH-value in the range of 4-7.

专利号:EP-4605403-A1
优先权日:2022-10-17
标 题:Method and composition for oligonucleotide synthesis
发明人：SAITO MASAHARU; TAKEDA KAZUTAKA; OKADA YOHEI; LUTHER ANATOL
权利人:BACHEM HOLDING AG
摘要:The invention pertains to methods for the synthesis of oligonucleotides using pseudo solid-phase protecting groups, wherein said method comprises at least one aqueous extraction carried out in the presence of one or more amide solvents SA, wherein each amide solvent SA is an amide solvent comprising one or more alkyl groups, wherein these one or more alkyl groups together comprise in total 6−24 carbon atoms. The invention further pertains to compositions comprising an oligonucleotide which is covalently bonded to a pseudo solid-phase protecting group and a mixed solvent comprising on or more of the aforementioned amide solvents SA.

专利号:WO-2024083746-A1
优先权日:2022-10-17
标 题 :Method and composition for oligonucleotide synthesis
发明人：SAITO MASAHARU; TAKEDA KAZUTAKA; OKADA YOHEI; LUTHER ANATOL
权利人:BACHEM HOLDING AG
摘要:The invention pertains to methods for the synthesis of oligonucleotides using pseudo solid-phase protecting groups, wherein said method comprises at least one aqueous extraction carried out in the presence of one or more amide solvents SA, wherein each amide solvent SA is an amide solvent comprising one or more alkyl groups, wherein these one or more alkyl groups together comprise in total 6−24 carbon atoms. The invention further pertains to compositions comprising an oligonucleotide which is covalently bonded to a pseudo solid-phase protecting group and a mixed solvent comprising on or more of the aforementioned amide solvents SA.

专利号:US-6531470-B1
优先权日:1998-01-23
标题:Oxazolidinone combinatorial libraries, compositions and methods of preparation
发明人：GORDEEV MIKHAIL F; LUEHR GARY W; PATEL DINESH V; NI ZHI-JIE; GORDON ERIC
权利人:UPJOHN CO
摘要:Oxazolidinones and methods for their synthesis are provided. Also provided are combinatorial libraries comprising oxazolidinones, and methods to prepare the libraries. Further provided are methods of making biologically active oxazolidinones as well as pharmaceutically acceptable compositions comprising the oxazolidinones. The methods of library preparation include the attachment of oxazolidinones to a solid support. The methods of compound preparation in one embodiment involve the reaction of an iminophosphorane with a carbonyl containing polymeric support.