N⁶-benzoyl-3'-O-(tert-butyldiphenylsilyl)-2'-deoxyadenosine | 111570-92-4

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘌呤核苷
• 英文名称: N⁶-benzoyl-3'-O-(tert-butyldiphenylsilyl)-2'-deoxyadenosine
• 英文别名: 6-N-benzoyl-3'-O-tert-butyldiphenylsilyl-2'-deoxyadenosine；N-[9-[(2R,4S,5R)-4-[tert-butyl(diphenyl)silyl]oxy-5-(hydroxymethyl)oxolan-2-yl]purin-6-yl]benzamide
• CAS: 111570-92-4
• 化学式: C₃₃H₃₅N₅O₄Si
• 分子量: 593.758
• InChiKey: YMEHYKUYVLZTCY-UPRLRBBYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  43
• 可旋转键数：
  9
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  111
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  N⁶-benzoyl-3'-O-(tert-butyldiphenylsilyl)-2'-deoxyadenosine 在 吡啶 、 N-碘代丁二酰亚胺 、 四丁基氟化铵 、 水 、 potassium carbonate 、 二甲基亚砜 、 四乙基碳酸氢铵 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 甲胺 、 三氟乙酸 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 2.0h， 生成 2'-deoxy-4'-methoxyadenosine
  参考文献：
  名称：

  嘌呤4'-烷氧基-2'-脱氧核苷的直接合成：混合嘌呤-嘧啶4'-烷氧基寡聚脱氧核苷酸作为新的RNA模仿物的首次报道。

  摘要：

  通过N-碘代琥珀酰亚胺促进的烷氧基化，水解和还原反应，然后转化为亚磷酰胺单体进行固相分三步，由核苷4'-5'-烯醇乙酸酯高效地制备了嘌呤和嘧啶4'-烷氧基-2'-脱氧核苷寡核苷酸的合成。以普遍的N型（RNA样）构象为特征的经过完全修饰的4'-烷氧基寡聚脱氧核苷酸表现出优异的化学和核酸酶抗性以及出色的杂交特性，具有很强的RNA选择性杂交趋势，表明其潜在的应用前景。反义技术中的4'-烷氧基-寡脱氧核苷酸。

  DOI：

  10.1021/acs.orglett.5b01430
• 作为产物：
  描述：

  N6-苯甲酰基-5'-O-(4,4'-二甲氧基三苯基)-2'-脱氧腺苷 在 咪唑 、 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 反应 12.25h， 生成 N⁶-benzoyl-3'-O-(tert-butyldiphenylsilyl)-2'-deoxyadenosine
  参考文献：
  名称：

  Alteration of DNA Primary Structure by DNA Topoisomerase I. Isolation of the Covalent Topoisomerase I−DNA Binary Complex in Enzymatically Competent Form

  摘要：

  DNA ligation by DNA topoisomerase I was investigated employing synthetic DNA substrates containing a single strand nick. Site-specific cleavage of the DNA by topoisomerase I in proximity to the nick resulted in uncoupling of the cleavage and ligation reactions of the enzyme, thereby trapping the covalent enzyme-DNA intermediate. DNA cleavage could be reversed by the addition of acceptor oligonucleotides containing a free 5'-OH group and capable of hybridizing to the noncleaved strand of the ''suicide substrates''. Utilizing accepters with partial complementarity, modification of nucleic acid structure has been obtained. Modifications included the formation of DNA insertions, deletions, and mismatches. To further evaluate the potential of topoisomerase I to mediate structural transformations of DNA, acceptor oligonucleotides containing nucleophiles other than OH groups at the 5'-end were studied as substrates for the topoisomerase I-mediated ligation reaction. Toward this end, oligonucleotides containing 5'-thio, amino, and hydroxymethylene moieties were synthesized. Initial investigations utilizing a coupled cleavage-ligation assay suggested that only the modified acceptor containing an additional methylene group underwent efficient enzyme-mediated ligation. However, as linear DNA is not a preferred substrate for topoisomerase I, the enzyme-DNA intermediate was purified to homogeneity, thereby allowing investigation of the ligation reaction independent of the forward reaction that formed the covalent binary complex. The isolated complex consisted of equimolar enzyme and DNA, with topoisomerase I covalently bound to a specific site on the DNA duplex in an enzymatically competent form. Displacement of the enzyme-linked tyrosine moiety of the enzyme-DNA binary complex was effected by all the modified acceptor oligonucleotides, affording unnatural internucleosidic linkages at a specific site. Characterization of the formed linkages was effected both by enzymatic and chemical degradation studies. Comparative analysis revealed overall differences in the efficiency and rate of the topoisomerase I-mediated ligation of the modified acceptors. Moreover, the facility of ligation of the amino acceptor was significantly enhanced at increasing pH values. In addition, the method utilized to obtain the topoisomerase I-DNA intermediate is capable of affording large quantities required for further mechanistic and physicochemical characterization of the formed binary complex.

  DOI：

  10.1021/ja961788h

文献信息

• Synthesis of Disaccharide Nucleosides by the<i>O</i>-Glycosylation of Natural Nucleosides with Thioglycoside Donors
  作者：Shin Aoki、Taketo Fukumoto、Taiki Itoh、Masayuki Kurihara、Shigeto Saito、Shin-ya Komabiki

  DOI：10.1002/asia.201403319

  日期：2015.3

  Disaccharide nucleosides constitute an important group of naturally‐occurring sugar derivatives. In this study, we report on the synthesis of disaccharide nucleosides by the direct O‐glycosylation of nucleoside acceptors, such as adenosine, guanosine, thymidine, and cytidine, with glycosyl donors. Among the glycosyl donors tested, thioglycosides were found to give the corresponding disaccharide nucleosides

  二糖核苷是天然存在的糖衍生物的重要组成部分。在这项研究中，我们报道了通过核苷受体（如腺苷，鸟苷，胸苷和胞苷）与糖基供体的直接O-糖基化来合成二糖核苷。在测试的糖基供体中，发现硫代糖苷可以使用对甲苯磺酰氯（TolSCl）和三氟甲磺酸银（AgOTf）作为促进剂，以上述核苷受体以中等至高化学产率提供相应的二糖核苷。通过1 H NMR光谱实验检查了这些启动子与核苷受体的相互作用。
• [EN] NOVEL PHOSPHOROUS (V)-BASED REAGENTS, PROCESSES FOR THE PREPARATION THEREOF, AND THEIR USE IN MAKING STEREO-DEFINED ORGANOPHOSHOROUS (V) COMPOUNDS<br/>[FR] NOUVEAUX RÉACTIFS À BASE DE PHOSPHORE (V), LEURS PROCÉDÉS DE PRÉPARATION ET LEUR UTILISATION DANS LA FABRICATION DE COMPOSÉS ORGANOPHOSHOREUX (V) STÉRÉODÉFINIS
  申请人：BRISTOL MYERS SQUIBB CO

  公开号：WO2019200273A1

  公开（公告）日：2019-10-17

  The present invention relates to novel phosphorous (V) (P(V)) reagents, methods for preparing thereof, and methods for preparing organophosphorous (V) compounds by using the novel reagents.

  本发明涉及新型磷（V）（P(V)）试剂，其制备方法以及利用这种新型试剂制备有机磷（V）化合物的方法。
• Electrophile-promoted addition of hydroxymethylphosphonate to 4′,5′-didehydronucleosides: a way to novel isosteric analogues of 5′-nucleotides
  作者：Zdeněk Točík、Ivana Dvořáková、Radek Liboska、Miloš Buděšínský、Milena Masojídková、Ivan Rosenberg

  DOI：10.1016/j.tet.2007.03.059

  日期：2007.5

  addition of dialkyl-hydroxymethylphosphonate to the protected 4′,5′-didehydronucleosides resulted in an epimeric mixture of 4′-dialkylphosphonomethoxy derivatives of 2′,5′-dideoxynucleosides, novel analogues of 2′-deoxynucleoside 5′-monophosphates. Several types of electrophiles (pyridinium tosylate, NIS, NBS, MCPBA and others) were evaluated in addition reactions with 4′,5′-didehydrothymidine. Out

  亲电子促进的将二烷基羟甲基膦酸酯加到受保护的4'，5'-didehydronucleosides上，生成2'，5'-dideoxynucleosides的4'-di烷基膦酰基甲氧基衍生物的差向异构体混合物，这是2'-deoxynucleoside 5'-monophosphates的新类似物。在与4'，5'-二氢胸苷的加成反应中评估了几种类型的亲电试剂（甲苯磺酸吡啶鎓，NIS，NBS，MCPBA等）。从中发现，甲苯磺酸吡啶鎓在这些转化中具有实际用途。它的使用导致了一系列常见2'-脱氧核苷的4'-膦酰基甲氧基衍生物的制备。在生物学筛选中，这些游离膦酸没有发挥明显的细胞抑制或抗病毒活性。
• Catalytic asymmetric and stereodivergent oligonucleotide synthesis
  作者：Aaron L. Featherston、Yongseok Kwon、Matthew M. Pompeo、Oliver D. Engl、David K. Leahy、Scott J. Miller

  DOI：10.1126/science.abf4359

  日期：2021.2.12

  BINOL-derived CPAs, which completely overturn this stereochemical preference. The presently reported catalytic method does not require stoichiometric activators or chiral auxiliaries and enables asymmetric catalysis with readily available phosphoramidites. The method was applied to the stereocontrolled synthesis of diastereomeric dinucleotides as well as cyclic dinucleotides, which are of broad interest in

  我们报告了二核苷酸的催化立体控制合成。据我们所知，我们首次证明手性磷酸 (CPA) 催化剂在亚磷酰胺转移过程中控制立体磷中心的形成。还证明了前所未有的非对映发散水平，使得能够获得任一亚磷酸酯非对映异构体。两种不同的 CPA 支架已被证明对于实现立体发散至关重要：肽包埋的磷酸苏氨酸衍生的 CPA，它增强和放大了固有的底物偏好，以及 C2 对称 BINOL 衍生的 CPA，它完全颠覆了这种立体化学偏好。目前报道的催化方法不需要化学计量的活化剂或手性助剂，并且可以使用现成的亚磷酰胺进行不对称催化。
• Preparation of nucleoside 5′-deoxy-5′-methylenephosphonates as building blocks for the synthesis of methylenephosphonate analogues
  作者：Annika Kers、Tomas Szabó、Jacek Stawinski

  DOI：10.1039/a906066i

  日期：——

  Efficient synthesis of suitably protected 2′-deoxycytidine, 2′-deoxyadenosine, and 2′-deoxyguanosine derivatives bearing the 5′-methylenephosphonate moiety with the 4-methoxy-1-oxido-2-picolyl function as an intramolecular nucleophile catalytic group is described.

  本文描述了适当保护2-脱氧胞苷、2-脱氧腺苷和2-脱氧鸟苷衍生物的高效合成，这些衍生物带有5-亚甲基膦酸基团和4-甲氧基-1-氧代-2-皮考林基官能团，作为分子内亲核催化基团。