(3aR,4R,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carbaldehyde oxime | 1142935-24-7

• 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: (3aR,4R,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carbaldehyde oxime
• CAS: 1142935-24-7
• 化学式: C₁₃H₁₆N₆O₄
• 分子量: 320.308
• InChiKey: HPOUWCRQBZUCLL-WOUKDFQISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.29
• 重原子数：
  23.0
• 可旋转键数：
  2.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  129.9
• 氢给体数：
  2.0
• 氢受体数：
  10.0

反应信息

• 作为反应物：
  描述：

  (3aR,4R,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carbaldehyde oxime 在 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 为溶剂， 反应 0.75h， 以95%的产率得到1'-(adenin-9-yl)-2',3'-O-(isopropylidene)-D-ribofuranurononitrile
  参考文献：
  名称：

  A Simple Synthesis of Nitriles from Aldoximes

  摘要：

  [GRAPHICS]Easily synthesized aldoximes have been converted to the corresponding nitriles under very mild conditions by a simple reaction with 1H-benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (BOP) and DBU in CH2Cl2, THF, or DMF. As an alternative reagent that eliminates the formation of hexamethylphosphoramide as a byproduct, use of 1H-benzotriazol-1-yl-4-methylbenzenesulfonate (Bt-OTs) and DBU was investigated. Reactions with this reagent also proceeded smoothly and in good yields, although in one case N-sulfonylation was observed. An attempt to gain mechanistic insight into the BOP-mediated reaction has been made using (31)p{H-1} NMR. However, no phosphorus-bearing intermediate could be readily observed. Finally, the method has been applied to the synthesis of an antiviral 4'-cyano adenosine analogue from a commercial precursor using a single saccharide protecting group.

  DOI：

  10.1021/jo900100v
• 作为产物：
  描述：

  5'-deoxy-5'-[N-(tert-butyldimethylsilyloxy)-N-(p-toluenesulfonyl)amino]-2',3'-O-(isopropylidene)adenosine 在 cesium fluoride 作用下， 以 乙腈 为溶剂， 反应 1.5h， 以80%的产率得到(3aR,4R,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carbaldehyde oxime
  参考文献：
  名称：

  A Simple Synthesis of Nitriles from Aldoximes

  摘要：

  [GRAPHICS]Easily synthesized aldoximes have been converted to the corresponding nitriles under very mild conditions by a simple reaction with 1H-benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (BOP) and DBU in CH2Cl2, THF, or DMF. As an alternative reagent that eliminates the formation of hexamethylphosphoramide as a byproduct, use of 1H-benzotriazol-1-yl-4-methylbenzenesulfonate (Bt-OTs) and DBU was investigated. Reactions with this reagent also proceeded smoothly and in good yields, although in one case N-sulfonylation was observed. An attempt to gain mechanistic insight into the BOP-mediated reaction has been made using (31)p{H-1} NMR. However, no phosphorus-bearing intermediate could be readily observed. Finally, the method has been applied to the synthesis of an antiviral 4'-cyano adenosine analogue from a commercial precursor using a single saccharide protecting group.

  DOI：

  10.1021/jo900100v

文献信息

• Anticancer and Antiviral Effects and Inactivation of <i>S</i>-Adenosyl-<scp>l</scp>-homocysteine Hydrolase with 5‘-Carboxaldehydes and Oximes Synthesized from Adenosine and Sugar-Modified Analogues
  作者：Stanislaw F. Wnuk、Chong-Sheng Yuan、Ronald T. Borchardt、Jan Balzarini、Erik De Clercq、Morris J. Robins

  DOI：10.1021/jm960828p

  日期：1997.5.1

  5'-carboxaldehyde analogues by Moffatt oxidation (dimethyl sulfoxide/dicyclohexylcarbodiimide/dichloroacetic acid) or with the Dess-Martin periodinane reagent. Hydrolysis of a 5'-fluoro-5'-S-methyl-5'-thio (alpha-fluoro thioether) arabinosyl derivative also gave the 5'-carboxaldehyde. Treatment of 5'-carboxaldehydes with hydroxylamine [or O-(methyl, ethyl, and benzyl)hydroxylamine] hydrochloride gave

  通过Moffatt氧化（二甲基亚砜/二环己基碳二亚胺/二氯乙酸）或用Dess-Martin高碘烷试剂将选择性保护的腺嘌呤核苷转化为5'-甲醛醛类似物。5'-氟-5'-S-甲基-5'-硫代（α-氟硫醚）阿拉伯糖基衍生物的水解也得到5'-甲醛。用羟胺[或O-（甲基，乙基和苄基）羟胺]盐酸盐处理5'-甲醛，得到E / Z肟。用三氟乙酸水溶液和丙酮处理纯化的肟可实现反式肟化反应，从而提供干净的5'-甲醛样品。腺苷（Ado）-5'-甲醛及其4'-末端是S-腺苷-L-高半胱氨酸（AdoHcy）水解酶的有效抑制剂。它们与酶有效结合并在C3'处发生氧化 得到3'-酮类似物，同时降低NAD +辅因子，得到无活性的，紧密结合的NADH-酶复合物（I型辅因子耗竭抑制）。用含有核糖顺式2'，3'-乙二醇的5'-羧醛观察到了有效的I型抑制作用。它们的肟衍生物是“前抑制剂”，它们经过酶催化水解后在活性位点释放抑制剂。