1-(2,3-dideoxy-α-D-glycero-pent-2-enopyranosyl)thymine | 132587-42-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 1-(2,3-dideoxy-α-D-glycero-pent-2-enopyranosyl)thymine
• 英文别名: 1-[(3S,6S)-3-hydroxy-3,6-dihydro-2H-pyran-6-yl]-5-methylpyrimidine-2,4-dione
• CAS: 132587-42-9
• 化学式: C₁₀H₁₂N₂O₄
• 分子量: 224.216
• InChiKey: GNXHILFBLCJQIR-YUMQZZPRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.8
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  78.9
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1-(2,3-dideoxy-α-D-glycero-pent-2-enopyranosyl)thymine 在 pyridinium dichromate 、 乙酸酐 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以87%的产率得到((6'-R)-2',6'-dihydrothymidin-1-yl)-3'-pyrone
  参考文献：
  名称：

  不饱和外亚甲基和酮 D-Lyxopyranonucleoside 类似物的合成、抗病毒和细胞抑制评估

  摘要：

  本报告描述了作为潜在生物活性剂的不饱和外亚甲基lyxopyranonucleoside 类似物的合成。市售的 1,2,3,4-四-O-乙酰-α-D-lyxopyranose 1 分别与甲硅烷基化胸腺嘧啶和尿嘧啶缩合，脱乙酰和缩醛得到 1-(2,3-O-异亚丙基-α- D-lyxopyranosyl)thymine 4a 和 1-(2,3-O-isopropylidene-α-D-lyxopyranosyl)uracil 4b。新的衍生物 1-(2,3,4-trideoxy-4-methylene-α-pent-2-enopyranosyl)thymine 8a 和 1-(2,3,4-trideoxy-4-methylene-α-pent-2-为了阐明2',3'-不饱和度的影响并阐明酮基和外亚甲基之间的差异，通过两种不同的关键中间体7a、b和13a、b制备了烯吡喃基）尿嘧啶8b。目标分子。化合物

  DOI：

  10.1002/ardp.200900004
• 作为产物：
  描述：

  O,O-二(三甲基甲硅烷基)胸苷 在 sodium methylate 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 7.0h， 生成 1-(2,3-dideoxy-α-D-glycero-pent-2-enopyranosyl)thymine
  参考文献：
  名称：

  Easy Synthesis and Different Conformational Behavior of Purine and Pyrimidine .beta.-D-glycero-Pent-2'-enopyranosyl Nucleosides

  摘要：

  Condensation of 3,4-bis-O-(p-nitrobenzoyl)-D-xylal with purines and pyrimidines (A, C, 6-chloropurine, G, T, U) without externally added acid catalyst leads to the 2',3'-unsaturated pentopyranosyl nucleosides in preparatively acceptable yields of both beta and alpha anomers and near complete suppression of formation of the 3'-substituted 1',2'-unsaturated regioisomers. Anomeric configurations of these analogues of nucleosides have been established for the 4'-O-deprotected derivatives by way of C-13 NMR. In all nine anomeric pairs the signals of the carbon atoms C-5' in alpha anomers are shifted upfield when compared with the corresponding signals of the beta anomers. Coupling constants J(4'5'ax) indicate pseudoaxial positions of purines in 33-40, 45, and 46. This is rationalized in terms of a pi-o*(c-1'-N-9) resonance and represents a case where aglycons occupy pseudoaxial positions via a mechanism'different than the anomeric effect. The same coupling constants of the alpha-pyrimidines 30, 32, 42, and 44 indicate H-4(0)<->H-0(4) equilibrium with a marginal preference toward the H-0(4) form, whereas the beta-pyrimidines 29, 31, 41, and 43 show a preference toward H-0(4) probably due to steric interactions.

  DOI：

  10.1021/jo00129a035

文献信息

• Synthesis of β configured 2′,3′-unsaturated pentopyranosyl nucleosides
  作者：Bodgan Doboszewski、Norbert Blaton、Piet Herdewijn

  DOI：10.1016/0040-4039(94)02466-o

  日期：1995.2

  of 3,4-di-O-p-nitrobenzoyl-D-xylal with heterocyclic bases in boiling DMF in the absence of externally added acid catalyst constitutes a convenient way to β configured 2′,3′-unsaturated pentopyranosyl nucleosides. Formation of the 3′-substituted products (without migration of a double bond) has been practically avoided.

  在没有外部添加的酸催化剂的情况下，在沸腾DMF中将3,4-二-O-硝基苯甲酰基-D-二甲苯基与杂环碱偶联，是构建β构型的2'，3'-不饱和戊吡喃糖基核苷的简便方法。实际上已经避免了形成3'-取代的产物（没有双键的迁移）。
• Synthesis of unsaturated 4′-azido pyranosyl thymines as potential antiviral and anti-HIV agents
  作者：Michel Bessodes、Marie-José Egron、Jean Filippi、Kostas Antonakis

  DOI：10.1039/p19900003035

  日期：——

  Condensation of thymine with diacetyl-D-xylal and triacetyl-D-glucal afforded the unsaturated nucleosides 1, 6 and 7. After deacetylation and selective protection of the primary hydroxy groups in the case of the glucose derivatives, these compounds were either submitted to Mitsunobu reaction with hydrazoic acid to give the azides 4, 14 and 15, or oxidised with PDC–molecular sieves to give the unsaturated keto

  的缩合胸腺嘧啶与二乙酰基d -xylal和三乙酰基d -glucal得到不饱和的核苷1，6和7。脱乙酰化，并在葡萄糖衍生物的情况下的伯羟基的选择性保护后，这些化合物要么提交Mitsunobu反应与叠氮酸，得到叠氮化物4，14和15，或者用PDC-分子筛，得到不饱和的氧化的酮核苷3，12和13。该叠氮化物的还原4，14和15得到氨基衍生物5，18和19。后两种化合物的氧化得到氨基脲酸酯核苷20和21。在各种病毒模型，包括HIV初步测试，表明酮3，12和13是这一系列中最活跃的化合物。
• Synthesis of the β-2',3'-Unsaturated Pentopyranosyl Nucleosides and Their 3'-Hydroxymethyl Congeners
  作者：Bogdan Doboszewski、Norbert Blaton、Piet Herdewijn

  DOI：10.1080/15257779508012371

  日期：1995.5.1

  Fusion of the glycal 3 and purines/pyrimidines without acid catalyst provides anomeric mixtures of the 2',3'-unsaturated pentopyranosyl nucleosides 4, which have been worked out to furnish the 3'-hydroxymethyl analogues, e.g. 5.