9-Trimethylsilyl-2,6-dichlorpurin | 75788-35-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 英文名称: 9-Trimethylsilyl-2,6-dichlorpurin
• 英文别名: (2,6-dichloropurin-9-yl)-trimethylsilane
• CAS: 75788-35-1
• 化学式: C₈H₁₀Cl₂N₄Si
• 分子量: 261.186
• InChiKey: TZKYABABUIOQLV-UHFFFAOYSA-N

物化性质

• 沸点：
  301.7±52.0 °C(Predicted)
• 密度：
  1.41±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.82
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  43.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  9-Trimethylsilyl-2,6-dichlorpurin 在 三氟甲磺酸三甲基硅酯 、 氨 作用下， 以 甲醇 、 乙二醇二甲醚 、 乙腈 为溶剂， 反应 120.33h， 生成 克罗拉滨
  参考文献：
  名称：

  Oligonucleotides Containing 9-(2-Deoxy-2-Fluoro-β-D-Arabinofuranosyl)-Adenine and -Guanine: Synthesis, Hybridization and Antisense Properties

  摘要：

  Synthesis of 9-(2-deoxy-2-fluoro-beta -D-arabinofuranosyl)-adenine (7, ara-A(2'F)) and -guanine (12, ara-G(2'F)) was accomplished via the condensation of 2,6-dichloropurine (1) with 2-deoxy-2-fluoro-1,3,5-tri-O-benzoyl-alpha -D-arabinofuranose (2) as a key chemical step. Condensation of silylated N-6-benzoyladenine (6) with 2 gave, after deblocking and chromatographic separation, ara-A(2'F) (7) (14%), it's alpha -anomer 8 (14%) and N-7-alpha -isomer 9 (25%). The PSEUROT analysis of N-9-beta -D-arabinosides 7 and 12 manifested slight preference for the S rotamer (64%) for the former, and an equal population of the N and S rotamers for the latter. The arabinosides 7 and 12 were used for the preparation of the respective phosphoamidite building blocks 13 and 14 for automated oligonucleotide synthesis. Four 15-mer oligonucleotides (ONs) complementary to the initiation codon region of firefly luciferase mRNA were prepared: unmodified 2'-deoxy-ON (AS1) and containing (i) ara-A(2'F) instead of the only A (AS2), (ii) ara-G(2'F) vs. 3-G from the 5'-terminus (AS3), and (iii) both arabinosides at the same positions (AS4). All these ONs display practically the same (i) affinity to both complementary DNA and RNA, and (ii) ability to inhibit a luciferase gene expression in a cell-free transcription-translation system.

  DOI：

  10.1080/15257770008045466
• 作为产物：
  描述：

  2,6-二氯嘌呤 、 六甲基二硅氮烷 在 ammonium sulfate 作用下， 反应 2.0h， 生成 9-Trimethylsilyl-2,6-dichlorpurin
  参考文献：
  名称：

  L-β-（2S，4S）-和L-α-（2S，4R）-二氧戊环基核苷作为潜在的抗HIV药物：不对称合成和结构活性关系。

  摘要：

  为了研究L-（2S，4S）-和L-（2S，4R）-二氧戊环核苷作为潜在抗HIV药物的构效关系，各种对映体纯的L-（2S，4S）-和（2S合成了（4R）-二氧戊环基嘧啶和-嘌呤核苷，并对人外周血单核（PBM）细胞中的HIV-1进行了评估。对映体纯的关键中间体8是由1,6-脱水β-L-古洛糖（2）六步合成的，化合物8与5-取代的嘧啶，6-氯嘌呤和2,6-二取代的嘌呤缩合分别获得各种二氧戊环基嘧啶和-嘌呤核苷。在合成的化合物中，发现5-氟胞嘧啶衍生物29尽管具有毒性（IC50 = 10.0 microM），却显示出最有效的抗HIV活性（EC50 = 0.0012 microM）。嘧啶类似物的抗HIV效能的顺序如下：5-氟胞嘧啶（β-异构体）>胞嘧啶（β-异构体）> 5-氟胞嘧啶（α-异构体）> 5-碘胞嘧啶（β-异构体）>胞嘧啶（ （α-异构体）> 5-溴胞嘧啶（β-异构体）>胸腺嘧啶（β-异构体）>

  DOI：

  10.1021/jm00057a001

文献信息

• Synthesis of New Nucleosides by coupling of chloropurines with 2- and 3-deoxy derivatives ofN-methyl-D-ribofuranuronamide
  作者：Rosaria Volpini、Emidio Camaioni、Sauro Vittori、Luciano Barboni、Catia Lambertucci、Gloria Cristalli

  DOI：10.1002/hlca.19980810113

  日期：1998.1.12

  The synthesis of new deoxyribose nucleosides by coupling chloropurines with modified D-ribose derivatives is reported. The methyl 2-deoxy-N-methyl-3-O-(p-toluoyl)-α-D-ribofuranosiduronamide (α-D-8) and the corresponding anomer β-D-8 were synthesized starting from the commercially available 2-deoxy-D-ribose (1) (Scheme 1). Reaction of α-D-8 with the silylated derivative of 2,6-dichloro-9H-purine (9)

  报道了通过将氯嘌呤与修饰的D-核糖衍生物偶联来合成新的脱氧核糖核苷。从商购可得的2-开始，合成了甲基2-脱氧-N-甲基-3- O-（对甲苯甲酰基）-α-D-呋喃呋喃基硅二硼酰胺（α-D- 8）和相应的端基异构体β-D- 8。脱氧-D-核糖（1）（方案1）。α-D- 8与2,6-二氯-9 H-嘌呤的甲硅烷基化衍生物（9）反应，选择性地提供N 9-（2'-脱氧核糖核苷）10异头混合物（方案2）），而β-D- 8没有反应。9或6-氯-9 H-嘌呤（17）与1,2-二-O-乙酰基-3-脱氧-N-甲基-β-D-核呋喃核糖酰胺（13）的糖基化仅产生受保护的β-D -端基异构体14和18（方案3）。随后的脱乙酰基和脱氯得到所需的核苷β-D- 11，β-D- 12,15和16。3'-脱氧-2-氯腺苷衍生物15对A的腺苷结合位点显示出最高的亲和力和选择性1和A 2A腺苷受体亚型。
• Synthesis, structure, and biological activity of certain 2-deoxy-.beta.-D-ribo-hexopyranosyl nucleosides and nucleotides
  作者：L. Dee Nord、N. Kent Dalley、Patricia A. McKernan、Roland K. Robins

  DOI：10.1021/jm00389a015

  日期：1987.6

  and conformation of other nucleosides were determined by proton magnetic resonance analysis of the 4-nitrobenzoylated nucleosides. Nucleoside 6'-monophosphates of 7, 13, and 2 and the 4',6'-cyclic monophosphate of 2 were also prepared. All 2'-deoxy-D-ribo-hexopyranosyl nucleosides and 6'-monophosphate derivatives were tested in vitro for antiviral and antitumor activity. The guanosine analogue 23 was

  通过路易斯酸催化的缩合反应合成了带有腺嘌呤（2），次黄嘌呤（17），鸟嘌呤（23），胞嘧啶（13）和尿嘧啶（7）作为糖苷的2-Deoxy-β-D-ribo-hexopyranosyl核苷。合适的三甲基甲硅烷基化的杂环碱和2-脱氧-1,3,4,6-四-O-（4-硝基苯甲酰基）-β-D-核糖己糖+ ++（5）的收率高。当通过甲硅烷基化的尿嘧啶与2-deoxy-3,4,6-tris-O-（4-硝基苯甲酰基）-alpha-D-ribo-hexopyranosyl bromide（8）之间的反应尝试通过SN2取代7时，主要产物1-（2-脱氧-3,4,6-三-O-（4-硝基苯甲酰基）-α-D-核糖-己吡喃糖基）-2,4-嘧啶二酮（9）保留了α构型异头碳。1-（2-deoxy-D-ribo-hexopyranosyl）-2的两个端基的结构 通过单晶X射线方法分配4-嘧啶二酮。通过4-硝基苯甲酰化核苷的质
• Methods to manufacture 1,3-dioxolane nucleosides
  申请人：Sznaidman Marcos

  公开号：US20060036092A1

  公开（公告）日：2006-02-16

  This application provides a process for preparing enantiomerically pure β-D-dioxolane nucleosides. In particular, a new synthesis of (−)-DAPD, suitable for large scale development, is described. In one embodiment the invention provides a process for preparing a substantially pure β-D- or β-L-1,3-dioxolane nucleosides comprising a) preparing or obtaining an esterified 2,2-dialkoxy ethanol; b) cyclizing the esterified 2,2-dialkoxy ethanol with glycolic acid to obtain a 1,3-dioxolane lactone; c) resolving the 1,3-dioxolane lactone to obtain a substantially pure D- or L-lactone; d) selectively reducing and activating the D- or L-chiral lactone to obtain a substantially pure D- or L-1,3-dioxolane; e) coupling the D- or L-1,3-dioxolane to an activated and/or protected purine or pyrimidine base; and f) optionally purifying the nucleoside to obtain a substantially pure protected β-D- or P-L-1,3-dioxolane nucleoside.

  该应用程序提供了一种制备对映纯β-D-二氧杂环核苷的方法。具体来说，描述了一种适用于大规模开发的新合成方法，用于制备(−)-DAPD。在一种实施方式中，该发明提供了一种制备基本纯β-D-或β-L-1,3-二氧杂环核苷的方法，包括a) 制备或获取酯化的2,2-二烷氧基乙醇；b) 将酯化的2,2-二烷氧基乙醇与甘醇酸环化以获得1,3-二氧杂环内酯；c) 分解1,3-二氧杂环内酯以获得基本纯的D-或L-内酯；d) 选择性还原和激活D-或L-手性内酯以获得基本纯的D-或L-1,3-二氧杂环；e) 将D-或L-1,3-二氧杂环与激活和/或保护的嘌呤或嘧啶碱基偶联；f) 可选地纯化核苷以获得基本纯的保护的β-D-或P-L-1,3-二氧杂环核苷。
• Structure−Activity Relationships of Truncated <scp>d</scp>- and <scp>l</scp>-4′-Thioadenosine Derivatives as Species-Independent A₃ Adenosine Receptor Antagonists
  作者：Lak Shin Jeong、Shantanu Pal、Seung Ah Choe、Won Jun Choi、Kenneth A. Jacobson、Zhan-Guo Gao、Athena M. Klutz、Xiyan Hou、Hea Ok Kim、Hyuk Woo Lee、Sang Kook Lee、Dilip K. Tosh、Hyung Ryong Moon

  DOI：10.1021/jm8008647

  日期：2008.10.23

  Novel D- and L-4'-thioadenosine derivatives lacking the 4'-hydroxymethyl moiety were synthesized, starting from D-mannose and D-gulonic gamma-lactone, respectively, as potent and selective species-independent A(3) adenosine receptor (AR) antagonists. Among the novel 4'-truncated 2-H nucleosides tested, a N-6-(3-chlorobenzyl) derivative 7c was the most potent at the human A(3) AR (K-i = 1.5 nM), but a N-6-(3-bromobenzyl) derivative 7d showed the optimal species-independent binding affinity.
• Synthesis of (−)‐DAPD
  作者：Marcos L. Sznaidman、Jinfa Du、Amir Pesyan、Darryl G. Cleary、Kevin P. Hurley、Frank Waligora、Merrick R. Almond

  DOI：10.1081/ncn-200040643

  日期：2004.1.12

  A new synthesis of (-)-DAPD, suitable for large scale development, is described.