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1,1'-Tetramethylenbisthymin | 63108-36-1

中文名称
——
中文别名
——
英文名称
1,1'-Tetramethylenbisthymin
英文别名
5-Methyl-1-[4-(5-methyl-2,4-dioxopyrimidin-1-yl)butyl]pyrimidine-2,4-dione;5-methyl-1-[4-(5-methyl-2,4-dioxopyrimidin-1-yl)butyl]pyrimidine-2,4-dione
1,1'-Tetramethylenbisthymin化学式
CAS
63108-36-1
化学式
C14H18N4O4
mdl
——
分子量
306.321
InChiKey
BRQLXSBPTAZCAI-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 密度:
    1.264±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    -0.3
  • 重原子数:
    22
  • 可旋转键数:
    5
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.43
  • 拓扑面积:
    98.8
  • 氢给体数:
    2
  • 氢受体数:
    4

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    1,1'-Tetramethylenbisthymin丙酮 作用下, 以 为溶剂, 反应 7.5h, 以51%的产率得到7a,7b-dimethyloctahydro-4a,6,9,10a-tetraazacycloocta[def]biphenylene-5,7,8,10(6H,9H)-tetraone
    参考文献:
    名称:
    三重态能量转移与激发态环化反应是光敏联嘧啶二聚化的控制步骤。
    摘要:
    聚亚甲基连接的联嘧啶模型已设计为具有不同的C5取代基和桥长度。用联嘧啶模型选择性辐照2'-甲氧基苯乙酮(2M),即使存在庞大的取代基也能得到环丁烷嘧啶二聚体。C5处的取代影响嘧啶(Pyr)的相对三重态能量(ET(rel))以及分子间能量转移和分子内三重态Pyr *猝灭的空间位阻。光物理研究表明,烷基取代导致ET(rel)值显着降低。证明了Pyr衍生物对2M的三重激发态的猝灭,并建立了它们的猝灭速率常数(kq)。作为一般趋势,含胸腺嘧啶的化合物的kq值高于109 M-1 s-1,而在尿嘧啶和叔丁基尿嘧啶类似物中,kq显着降低。这些数据是在三种不同的情况下进行解释的:(a)三重态能量转移是速率控制步骤,(b)激发态环化是速率控制步骤,并且(c)速率控制步骤随反应而变化。因此,通过在C5处的取代,连接桥的长度或底物浓度上引入变化,可以从由固有二聚化步骤控制的过程切换至能量转移控制的过程。
    DOI:
    10.1021/acs.joc.9b01423
  • 作为产物:
    描述:
    胸腺嘧啶哌啶 作用下, 以 乙腈 为溶剂, 反应 100.0h, 生成 1,1'-Tetramethylenbisthymin
    参考文献:
    名称:
    Lignin Nanoparticles Deliver Novel Thymine Biomimetic Photo-Adducts with Antimelanoma Activity
    摘要:
    我们在此报告合成了一种新型嘧啶类生物模拟光附加物,其在核碱基之间带有烷基间隔,并对过表达人类拓扑异构酶1(TOP1)的两种突变癌细胞系SKMEL28和RPMI7951表现出抗黑色素瘤活性。其中,Dewar价态光附加物的选择性指数高于相应的嘧啶-(6-4)-嘧啶酮和环丁烷对应物,并通过分子对接分析评估了其与TOP1/DNA复合物之间的最高亲和力。新型光附加物的抗黑色素瘤活性在载入UV光保护木质素纳米粒子作为稳定剂和高效药物输送系统后得以保留。总体而言,这些结果支持一种结合抗黑色素瘤和UV防晒策略,涉及使用光保护木质素纳米粒子对皮肤上的胸腺嘧啶二聚体进行控制释放,随后将其牺牲性转化为光附加物,并连续抑制黑色素瘤和警觉细胞UV机制修复途径。
    DOI:
    10.3390/ijms23020915
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文献信息

  • Photochemical ring opening of thymidine and thymine in the presence of primary amines
    作者:Isao Saito、Hiroshi Sugiyama、Nobuyuki Furukawa、Teruo Matsuura
    DOI:10.1016/s0040-4039(01)81880-3
    日期:1981.1
    Irradiation of thymidine or thymine in the presence of tert- butylamine at 0 °C provided ping-opened photoadduct 3 which on heating at 70 °C gave 1-tert-butylthymine (2) quantitatively. Synthetic application of this photoexchange reaction with amines has been described.
    在叔丁胺的存在下于0°C照射胸腺嘧啶或胸腺嘧啶可提供开孔的光加合物3,在70°C加热后可定量得到1-叔丁基胸腺嘧啶(2)。已经描述了这种光交换反应与胺的合成应用。
  • NMR and UV Study of 1,1′-(<i>α</i>,<i>ω</i>-Alkanediyl)bis[thymine] and 1,1′-(<i>α</i>,<i>ω</i>-Alkanediyl)bis[uracil]
    作者:Toshio Itahara
    DOI:10.1246/bcsj.70.2239
    日期:1997.9
    Treatment of thymine or uracil with Br(CH2)nBr (n = 3—10) in the presence of t-BuOK gave 1,1′-(α,ω-alkanediyl)bis[thymine] or 1,1′-(α,ω-alkanediyl)bis[uracil] together with 1-(ω-bromoalkyl)thymine or 1-(ω-bromoalkyl)uracil. The structures of these products were determined on the basis of the coupling constants between 5- and 3-positions of uracil ring on the 1H NMR spectra. Molecular aggregation of the thymine and uracil rings of these compounds in aqueous solution was studied on the basis of their 1H NMR and UV spectra. A stacking interaction of the two thymine rings linked by shorter polymethylene chains such as trimethylene and tetramenthylene groups was observed.
    将胸腺嘧啶或尿嘧啶与Br(CH2)nBr(n = 3—10)在t-BuOK存在下处理,得到了1,1′-(α,ω-烷烃二基)双[胸腺嘧啶]或1,1′-(α,ω-烷烃二基)双[尿嘧啶],以及1-(ω-溴烷基)胸腺嘧啶或1-(ω-溴烷基)尿嘧啶。这些产物的结构是基于尿嘧啶环中5位和3位之间的耦合常数在1H NMR光谱上的分析来确定的。基于它们的1H NMR和紫外光谱,研究了这些化合物在水溶液中胸腺嘧啶和尿嘧啶环的分子聚集情况。观察到由较短的聚亚 methylene 链(如三亚甲基和四亚甲基基团)连接的两个胸腺嘧啶环之间存在堆叠相互作用。
  • Photoprotection of DNA (in vitro) by acyclothymidine dinucleosides
    作者:Abbas Raza、Christine D. Dreis、Robert Vince
    DOI:10.1016/j.bmcl.2012.12.023
    日期:2013.2
    Excessive exposure to sunlight is primarily implicated in ultraviolet (UV) induced skin cancers worldwide. Direct absorption of UV radiation by DNA leads to the formation of cyclobutane pyrimidine dimers (CPDs) resulting in DNA damage. The molecular mechanisms involved in the mutagenicity of CPDs are well established. Photoprotection of the skin from the detrimental effects of UV is essential in preventing skin damage. A variety of formulations, which essentially contain UV filters have been used as photoprotective agents of the skin. These comprise aromatic and inorganic molecules, whose mechanism of action involves either absorption, reflection, or scattering of UV radiation. However, the downstream photoproducts of some of these molecules have undesirable characteristics which compromise their utility. A biomimetic approach involving structural analogs of nucleic acids can help overcome these limitations. Herein, we show the photoprotective action of acyclothymidine dinucleosides on both plasmid and cellular DNA. Published by Elsevier Ltd.
  • Triplet Energy Transfer versus Excited State Cyclization as the Controlling Step in Photosensitized Bipyrimidine Dimerization
    作者:Ofelia R. Alzueta、M. Consuelo Cuquerella、Miguel A. Miranda
    DOI:10.1021/acs.joc.9b01423
    日期:2019.11.1
    triplet energy transfer is the rate controlling step, (b) excited state cyclization is the rate controlling step, and (c) the rate controlling step switches along the reaction. Thus, by introducing variations in the substitution at C5, the length of the linking bridge, or the substrate concentration, it is possible to switch from a process governed by the intrinsic dimerization step to an energy transfer-controlled
    聚亚甲基连接的联嘧啶模型已设计为具有不同的C5取代基和桥长度。用联嘧啶模型选择性辐照2'-甲氧基苯乙酮(2M),即使存在庞大的取代基也能得到环丁烷嘧啶二聚体。C5处的取代影响嘧啶(Pyr)的相对三重态能量(ET(rel))以及分子间能量转移和分子内三重态Pyr *猝灭的空间位阻。光物理研究表明,烷基取代导致ET(rel)值显着降低。证明了Pyr衍生物对2M的三重激发态的猝灭,并建立了它们的猝灭速率常数(kq)。作为一般趋势,含胸腺嘧啶的化合物的kq值高于109 M-1 s-1,而在尿嘧啶和叔丁基尿嘧啶类似物中,kq显着降低。这些数据是在三种不同的情况下进行解释的:(a)三重态能量转移是速率控制步骤,(b)激发态环化是速率控制步骤,并且(c)速率控制步骤随反应而变化。因此,通过在C5处的取代,连接桥的长度或底物浓度上引入变化,可以从由固有二聚化步骤控制的过程切换至能量转移控制的过程。
  • Lignin Nanoparticles Deliver Novel Thymine Biomimetic Photo-Adducts with Antimelanoma Activity
    作者:Sofia Gabellone、Davide Piccinino、Silvia Filippi、Tiziana Castrignanò、Claudio Zippilli、Davide Del Buono、Raffaele Saladino
    DOI:10.3390/ijms23020915
    日期:——

    We report here the synthesis of novel thymine biomimetic photo-adducts bearing an alkane spacer between nucleobases and characterized by antimelanoma activity against two mutated cancer cell lines overexpressing human Topoisomerase 1 (TOP1), namely SKMEL28 and RPMI7951. Among them, Dewar Valence photo-adducts showed a selectivity index higher than the corresponding pyrimidine-(6-4)-pyrimidone and cyclobutane counterpart and were characterized by the highest affinity towards TOP1/DNA complex as evaluated by molecular docking analysis. The antimelanoma activity of novel photo-adducts was retained after loading into UV photo-protective lignin nanoparticles as stabilizing agent and efficient drug delivery system. Overall, these results support a combined antimelanoma and UV sunscreen strategy involving the use of photo-protective lignin nanoparticles for the controlled release of thymine dimers on the skin followed by their sacrificial transformation into photo-adducts and successive inhibition of melanoma and alert of cellular UV machinery repair pathways.

    我们在此报告合成了一种新型嘧啶类生物模拟光附加物,其在核碱基之间带有烷基间隔,并对过表达人类拓扑异构酶1(TOP1)的两种突变癌细胞系SKMEL28和RPMI7951表现出抗黑色素瘤活性。其中,Dewar价态光附加物的选择性指数高于相应的嘧啶-(6-4)-嘧啶酮和环丁烷对应物,并通过分子对接分析评估了其与TOP1/DNA复合物之间的最高亲和力。新型光附加物的抗黑色素瘤活性在载入UV光保护木质素纳米粒子作为稳定剂和高效药物输送系统后得以保留。总体而言,这些结果支持一种结合抗黑色素瘤和UV防晒策略,涉及使用光保护木质素纳米粒子对皮肤上的胸腺嘧啶二聚体进行控制释放,随后将其牺牲性转化为光附加物,并连续抑制黑色素瘤和警觉细胞UV机制修复途径。
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