4-氨基-1,5-二甲基-2(1H)-嘧啶酮 | 17634-60-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 4-氨基-1,5-二甲基-2(1H)-嘧啶酮
• 中文别名: 2(1H)-嘧啶酮,4-氨基-1,5-二甲基-
• 英文名称: 1,5-dimethylcytosine
• 英文别名: 1,5-diMeC；4-amino-1,5-dimethyl-1H-pyrimidin-2-one；4-Amino-1,5-dimethyl-1H-pyrimidin-2-on；4-Amino-1,5-dimethylpyrimidin-2-one
• CAS: 17634-60-5
• 化学式: C₆H₉N₃O
• mdl: MFCD00056063
• 分子量: 139.157
• InChiKey: AOUSVALLAUSDCJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.7
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.333
• 拓扑面积：
  58.7
• 氢给体数：
  1
• 氢受体数：
  1

安全信息

• 海关编码：
  2933599090

反应信息

• 作为反应物：
  描述：

  4-氨基-1,5-二甲基-2(1H)-嘧啶酮 以 水 、 乙腈 为溶剂， 生成 1-[(Z)-2-cyanoprop-1-enyl]-3-methylurea 、 1-[(E)-2-cyanoprop-1-enyl]-3-methylurea
  参考文献：
  名称：

  3-脲基丙烯腈：胞嘧啶、5-甲基胞嘧啶和相关化合物光异构化的新产品

  摘要：

  在研究远紫外光对 DNA 及其成分的影响时，作者发现胞嘧啶和 5-甲基胞嘧啶，以及它们的核苷和 N1-甲基衍生物，经过光异构化反应，产生相应的顺式和反式- 3-脲基丙烯腈。例如，N1-甲基胞嘧啶反应生成顺式和反式-3-（N3-甲基脲基）丙烯腈。这些产品已通过使用一维和二维高分辨率 {sup 1}H 和 {sup 13}C NMR 光谱、紫外和红外光谱、电子撞击和液体二次离子质谱进行表征，并且在某些情况下，通过替代路线合成。提供母体化合物的详细 {sup 13}C NMR 数据用于比较目的。这些光异构化反应在乙腈中完全发生；相应的反应也发生在水溶液中。对于胞嘧啶和 5-甲基胞嘧啶，在乙腈中的光反应很慢；然而，N1 取代大大提高了反应速率。

  DOI：

  10.1021/ja00177a038
• 作为产物：
  描述：

  5-甲基胞嘧啶 在 盐酸 作用下， 以 甲醇 、 水 为溶剂， 反应 20.75h， 生成 4-氨基-1,5-二甲基-2(1H)-嘧啶酮
  参考文献：
  名称：

  Ring Opening Photoreactions of Cytosine and Uracil with Ethylamine

  摘要：

  The photochemical reactions of cytosine (Cyt) and uracil (Ura) with ethylamine, an analog of the side chain of the amino acid lysine, have been studied. After irradiation of Cyt in aqueous ethylamine at lambda = 254 nm, N-(N'-ethylcarbamoyl)-3-aminoacrylamidine (Ia) and N-(N'-ethylcarbamoyl)-3-ethylaminoacrylamidine (Ib) were isolated as products, while irradiation of Ura gave N-(N'-ethylcarbamoyl)-3-aminoacrylamide (IIa) and N-(N'-ethylcarbamoyl)-3-ethylaminoacrylamide (IIb) as products. Studies in which Ia and IIa were incubated with ethylamine at various pH values indicate that Ib and IIb are secondary products produced via thermal reactions of Ia and IIa with ethylamine. Heating of Ia and Ib leads to ring closure with the resultant formation of 1-ethylcytosine; small amounts of 1-ethyluracil are also produced. Heating of IIa and IIb produces 1-ethyluracil as the sole product. Spectroscopic properties were determined for each of these opened ring products, as well as for N-(N'-ethylcarbamoyl)-3-amino-2-methylacrylamidine (III) and N-(N'-ethylcarbamoyl)-3-amino-2-methylacrylamide (IV). Quantum yield measurements showed that Ia was formed with a Phi of 1.6 x 10(-4) at pH 9.8, while Phi for formation of IIa was 7.2 x 10(-4) at pH 11.5. A profile of the relative quantum yield for formation of Ia, determined as a function of pH, showed that the maximum quantum yield occurs at around pH 9.5; the analogous profile for IIa shows a maximum quantum yield at pH 11.3 and above. Acetone sensitization does not produce Ia in the Cyt-ethylamine system, which indicates that the known triplet state of Cyt is not involved in reactions leading to this opened ring product.

  DOI：

  10.1562/0031-8655(2000)071<0243:ropoca>2.0.co;2

文献信息

• [EN] PROCESSES FOR PREPARING OLIGOMERS<br/>[FR] PROCÉDÉS DE PRÉPARATION D'OLIGOMÈRES
  申请人：SAREPTA THERAPEUTICS INC

  公开号：WO2017205496A1

  公开（公告）日：2017-11-30

  Provided herein are processes for preparing an oligomer (e.g., a morpholino oligomer). The synthetic processes described herein may be advantageous to scaling up oligomersynthesis while maintaining overall yield and purity of a synthesized oligomer.

  本文提供了制备寡聚物（例如吗啉基寡聚物）的过程。本文描述的合成过程可能有利于扩大寡聚物合成规模，同时保持合成寡聚物的总产量和纯度。
• [EN] TECHNOLOGIES USEFUL FOR OLIGONUCLEOTIDE PREPARATION<br/>[FR] TECHNOLOGIES UTILES POUR LA PRÉPARATION D'OLIGONUCLÉOTIDES
  申请人：WAVE LIFE SCIENCES LTD

  公开号：WO2020191252A1

  公开（公告）日：2020-09-24

  Among other things, the present disclosure provides technologies for oligonucleotide preparation, particularly chirally controlled oligonucleotide preparation, which technologies provide greatly improved crude purity and yield, and significantly reduce manufacturing costs.

  除其他事项外，本公开提供了寡核苷酸制备技术，特别是手性控制的寡核苷酸制备技术，这些技术大大提高了粗品纯度和产量，并显著降低了制造成本。
• NUCLEOTIDE ANALOGUES
  申请人：Intelligent Biosystems, Inc.

  公开号：US20170130051A1

  公开（公告）日：2017-05-11

  The present invention provides methods, compositions, mixtures and kits utilizing deoxynucleoside triphosphates comprising a 3′-O position capped by a group comprising methylenedisulfide as a cleavable protecting group and a detectable label reversibly connected to the nucleobase of said deoxynucleoside. Such compounds provide new possibilities for future sequencing technologies, including but not limited to Sequencing by Synthesis.

  本发明提供了利用包含由甲亚砜二硫醚作为可裂解保护基团的3'-O位置封端的脱氧核苷三磷酸的方法、组合物、混合物和试剂盒，以及可逆地连接到所述脱氧核苷的核碱基的可检测标签。这些化合物为未来的测序技术提供了新的可能性，包括但不限于合成测序。
• DNA sequencing reaction additive
  申请人：Qiagen Sciences, LLC

  公开号：US10844430B2

  公开（公告）日：2020-11-24

  The present invention provides methods, compositions, mixtures and kits utilizing 5-Chloro-2-methyl-4-isothiazolin-3-one in sequencing reactions, and in particular, sequencing reactions where deoxynucleoside triphosphates comprising a 3′-O position capped by a disulfide-based 3′-terminator group are used. In one embodiment, the deoxynucleoside triphosphates comprise a 3′-O position capped by a group comprising methylenedisulfide as a cleavable protecting group and a detectable label reversibly connected to the nucleobase of said deoxynucleoside. In addition, thiol-containing compounds and scavengers of thio-containing compounds are described. Such compounds provide new possibilities for future sequencing technologies, including but not limited to Sequencing by Synthesis.

  本发明提供了利用5-氯-2-甲基-4-异噻唑啉-3-酮在测序反应中的方法、组合物、混合物和试剂盒，特别是在使用由二硫化物基团封端的3′-O位置的脱氧核苷三磷酸的测序反应中。在一种实施例中，脱氧核苷三磷酸包括由亚甲基二硫醚作为可切割保护基团的3′-O位置，并且可检测标签可逆地连接到所述脱氧核苷的核碱基。此外，描述了含硫醇化合物和硫醇化合物的清除剂。这些化合物为未来的测序技术提供了新的可能性，包括但不限于合成测序。
• [EN] NUCLEOTIDE CLEAVABLE LINKERS AND USES THEREOF<br/>[FR] LIEURS CLIVABLES NUCLÉOTIDIQUES ET LEURS UTILISATIONS
  申请人：SINGULAR GENOMICS SYSTEMS INC

  公开号：WO2020146397A1

  公开（公告）日：2020-07-16

  Disclosed herein, inter alia, are compounds, compositions, and methods of use thereof for sequencing a nucleic acid.

  在此披露的内容包括化合物、组合物以及它们的使用方法，用于测序核酸。