N4-acetyl-4-amino-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one | 13491-47-9

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘧啶核苷
• 英文名称: N4-acetyl-4-amino-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one
• 英文别名: N⁴-acetylarabinocytidine；1-β-D-arabinofuranosyl-N4-acetyl cytosine；Acetamide, N-(1-beta-D-arabinofuranosyl-1,2-dihydro-2-oxo-4-pyrimidinyl)-；N-[1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]acetamide
• CAS: 13491-47-9
• 化学式: C₁₁H₁₅N₃O₆
• 分子量: 285.257
• InChiKey: NIDVTARKFBZMOT-SFKDOBOXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.4
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  132
• 氢给体数：
  4
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  N4-acetyl-4-amino-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one 在 吡啶 、 2,6-二甲基吡啶 、 sodium hydride 、 triethylamine tris(hydrogen fluoride) 作用下， 以 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 8.0h， 生成 5'-O-dimethoxytrityl-2'-O-(2,4-dinitrophenyl)-N4-acetylarabinocytidine
  参考文献：
  名称：

  中性条件下核糖核苷中2,4-二硝基苯基取代基的自发重排

  摘要：

  在胞苷和腺苷衍生物中，在中性条件下观察到2，4-二硝基苯基在核糖的2'-和3'-位之间的异构化。此外，显示了在合成亚磷酰胺所需的条件下2，4-二硝基苯基的异构化和在氨水中的不稳定性使得2'-O-（2，4-二硝基苯基）寡核苷酸的化学合成成为不可能。

  DOI：

  10.1080/15257770.2010.507233
• 作为产物：
  描述：

  acetyl ethyl carbonate 、 阿糖胞苷 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 以1.7 g的产率得到N4-acetyl-4-amino-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one
  参考文献：
  名称：

  In-vitro transdermal penetration of cytarabine and its N4-alkylamide derivatives

  摘要：

  Objectives The aim of this study was to synthesise and determine the transdermal penetration of cytarabine alkylamide derivatives and assess the correlation of flux with physicochemical properties.Methods The alkylamide derivatives of cytarabine were synthesised by acylation at the N4-amino group by the mixed anhydride method. The in-vitro permeation studies were performed using the Franz diffusion cell methodology. Furthermore, partition coefficients (n-octanol-water) and aqueous solubility of the N4-alkylamide derivatives of cytarabine were determined in order to obtain information about their lipophilicity and hydrophilicity.Key findings The N4-alkylamides of cytarabine (acetyl, butanoyl, hexanoyl, octanoyl, and decanoyl derivatives) showed decreased hydrophilicity and increased lipophilicity. The log D values of the alkylamides were higher than that of the parent compound and increased linearly as the alkyl chain lengthened. N4-hexanoyl-4-amino-1-[(2R,3S,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl] pyrimidin-2-one) showed the highest median steady-state flux (J(ss)) of 89.0 nmol/cm(2) per h in the series, which shows a high statistical difference with the parent compound flux value (3.70 nmol/cm(2) per h).Conclusions The prodrug approach appears to be a promising strategy for the enhancement of transdermal penetration of cytarabine.

  DOI：

  10.1211/jpp.62.06.0012

文献信息

• Methods for synthesizing nucleosides, nucleoside derivatives and non-nucleoside derivatives
  申请人：——

  公开号：US20020120129A1

  公开（公告）日：2002-08-29

  The present invention provides methods for the chemical synthesis of nucleosides and derivatives thereof, including 2′-amino, 2′-N-phthaloyl, 2′-O-methyl, 2′-O-silyl, 2′OH nucleosides, C-nucleosides, nucleoside phosphoramidites, C-nucleoside phosphoramidites, and non-nucleoside derivatives.

  本发明提供了核苷及其衍生物的化学合成方法，包括2'-氨基、2'-N-邻苯二甲酰基、2'-O-甲基、2'-O-硅基、2'-OH 核苷、C-核苷、核苷磷酰胺酯、C-核苷磷酰胺酯和非核苷衍生物。
• Differential reactivity of carbohydrate hydroxyls in glycosylations. II. The likely role of intramolecular hydrogen bonding on glycosylation reactions. Galactosylation of nucleoside 5′-hydroxyls for the syntheses of novel potential anticancer agents
  作者：Dennis M. Whitfield、Stephen P. Douglas、Ting-Hua Tang、Imre G. Csizmadia、Henrianna Y.S. Pang、Frederick L. Moolten、Jiri J. Krepinsky

  DOI：10.1139/v94-284

  日期：1994.11.1

  Contrary to expectations, many primary hydroxy groups are completely unreactive in glycosylation reactions, or give the desired glycosides in very low yields accompanied by products of many side reactions. Hydrogens of such primary hydroxyls are shown to be intramolecularly hydrogen bonded. Intermediates formed by nucleophilic attack by these hydroxyls on activated glycosylating agents may resist hydrogen abstraction. This resistance to proton loss is postulated to be the origin of the observed unreactivity. It is shown that successful glycosylations take place under acidic conditions under which such hydrogen bonds cease to exist. Accordingly, direct galactosylations of the normally unreactive 5′-hydroxyls of nucleosides were accomplished for the first time with a galactose trichloroacetimidate donor in chloroform under silver triflate promotion. It is noted that such galactosylated anticancer nucleosides may have improved biological specificity.

  与预期相反，许多主要的羟基在糖基化反应中完全不活跃，或者以非常低的产率给出所需的糖苷，伴随着许多副反应产物。这些主要羟基的氢被显示为分子内氢键结合。由这些羟基对活化的糖基化试剂的亲核攻击形成的中间体可能会抵抗氢的提取。据推测，这种抵抗质子损失的现象是观察到的不活性的起源。研究表明，成功的糖基化反应发生在酸性条件下，这种条件下这种氢键不再存在。因此，首次利用三氯乙酰亚胺盐酸镓在氯仿中在三氟乙酸银的促进下，成功地对核苷的通常不活跃的5'-羟基进行了直接的半乳糖化。据指出，这种半乳糖化的抗癌核苷可能具有改善的生物特异性。
• Scaleable and efficient synthesis of 2′-deoxy-2′-N-phthaloyl nucleoside phosphoramidites for oligonucleotide synthesis
  作者：Alexander Karpeisky、David Sweedler、Peter Haeberli、Javier Read、Keith Jarvis、Leonid Beigelman

  DOI：10.1016/s0960-894x(02)00744-8

  日期：2002.11

  2'-Deoxy-2'-N-phthaloyl nucleosides were prepared from arabino nucleosides by triflate displacement with phthalimide in the presence of DBU. The corresponding phosphoramidites suitable for automated oligonucleotide synthesis were also synthesized. The scalability of described procedures was demonstrated on a 100-g scale preparation of 2'-deoxy-2'-amino-C phosphoramidite.

  通过在DBU存在下用邻苯二甲酰亚胺三氟甲磺酸酯置换从阿拉伯核苷制备2'-脱氧-2'-N-邻苯二甲酰基核苷。还合成了适用于自动寡核苷酸合成的相应亚磷酰胺。在100 g规模的2'-脱氧-2'-氨基-C亚磷酰胺制备中证明了所描述方法的可扩展性。
• BHAT, V.;UGARKAR, B. G.;SAYEED, V. A.;GRIMM, K.;KOSORA, N.;DOMENICO, P. A+, NUCLEOSIDES AND NUCLEOTIDES, 8,(1989) N, C. 179-183
  作者：BHAT, V.、UGARKAR, B. G.、SAYEED, V. A.、GRIMM, K.、KOSORA, N.、DOMENICO, P. A+

  DOI：——

  日期：——
• XASIMOTO, XIRONOBU;SUDZUKI, KADZUMASA;TANAKA, MOKUO
  作者：XASIMOTO, XIRONOBU、SUDZUKI, KADZUMASA、TANAKA, MOKUO

  DOI：——

  日期：——