[(2S,4S,5R)-4-Amino-5-(6-amino-purin-9-yl)-tetrahydro-furan-2-yl]-methanol | 79859-52-2

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘌呤核苷
• 英文名称: [(2S,4S,5R)-4-Amino-5-(6-amino-purin-9-yl)-tetrahydro-furan-2-yl]-methanol
• 英文别名: [(2S,4S,5R)-4-amino-5-(6-aminopurin-9-yl)tetrahydrofuran-2-yl]methanol；[(2S,4S,5R)-4-amino-5-(6-aminopurin-9-yl)oxolan-2-yl]methanol
• CAS: 79859-52-2
• 化学式: C₁₀H₁₄N₆O₂
• 分子量: 250.26
• InChiKey: GLQYPFSENCOPOS-JFWOZONXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.5
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  125
• 氢给体数：
  3
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  (2R,3S,4S,5R)-5-(6-aminopurin-9-yl)-4-azido-2-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-3-ol 在 4-二甲氨基吡啶 、 氟化铵 、 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 甲醇 、 甲苯 、 乙腈 为溶剂， 反应 10.5h， 生成 [(2S,4S,5R)-4-Amino-5-(6-amino-purin-9-yl)-tetrahydro-furan-2-yl]-methanol
  参考文献：
  名称：

  Nucleic Acid Related Compounds. 91. Biomimetic Reactions Are in Harmony with Loss of 2‘-Substituents as Free Radicals (Not Anions) during Mechanism-Based Inactivation of Ribonucleotide Reductases. Differential Interactions of Azide, Halogen, and Alkylthio Groups with Tributylstannane and Triphenylsilane¹

  摘要：

  The initial step in the mechanism-based inactivation of ribonucleotide reductases by 2'-chloro-2'-deoxynucleotides is abstraction of H3' by a proximal free radical on the enzyme. The C3' radical is postulated to undergo spontaneous loss of chloride, and the resulting cationic radical loses a proton to give a 3'-keto intermediate. Successive beta-eliminations produce a Michael acceptor which causes inactivation. This hypothesis would predict rapid loss of mesylate or tosylate anions from C2', but sluggish loss of azide or thiomethoxide. in contrast, loss of azido and methylthio radicals from C2' should occur readily whereas homolysis to give (methyl or tolylsulfonyl)oxy and fluoro radicals should be energetically prohibitive. Protected 3'-O-(phenoxythiocarbonyl)-2'-substitute nucleosides were treated with tributylstannane/AIBN or triphenylsilane/dibenzoyl peroxide in refluxing toluene. The 2'-O-(mesyl and tosyl) and 2'-fluoro compounds underwent direct radical-mediated hydrogenolysis of the thionocarbonate group to give 3'-deoxy-2'-substituted products, whereas 2'-(azido, bromo, chloro, iodo, and methylthio)-3'-thionocarbonates gave 2',3'-didehydro-2',3'-dideoxy derivatives via loss of 2'-substituents from an incipient C3' radical. These results are in harmony with loss of radicals, but not anions, from C2'. The well-known radical-mediated hydrogenolytic cleavage of halogen and methylthio (slow) groups from C2' of the S'-hydroxy (unprotected) precursors and reduction of 2'-azides to amines occurred with tributylstannane/AIBN. Triphenylsilane/dibenzoyl peroxide gave parallel (but slower) hydrogenolysis with the 2'-(iodo, bromo, and methylthio) compounds, but cleavage of the 2'-chloro group was very slow and no reduction of 2'-azides to amines was detected. Rather, the latter system effected slow hydrogenolytic removal of the 2'-azido group. Thus, chemoselective differentiation of certain functional groups is possible with triphenylsilane and tributylstannane. Reduction of azides to amines with tributylstannane is known, but hydrogenolytic deazidation (slow) with triphenylsilane in the absence of amine formation appears to be novel.

  DOI：

  10.1021/ja962117m

文献信息

• Biocatalytic synthesis of aminodeoxy purine N9-beta-D-nucleosides containing 3-amino-3-deoxy-beta-D-ribofuranose, 3-amino-2,3-dideoxy-beta-D-ribofuranose, and 2-amino-2-deoxy-beta-D-ribofuranose as sugar moieties
  申请人：Barai N. Vladimir

  公开号：US20070065922A1

  公开（公告）日：2007-03-22

  Purine N 9 -β-D-nucleosides containing 3-amino-3-deoxy-β-D-ribofaranose, 3-amino-2,3-dideoxy-β-D-ribofuranose, and 2-amino-2-deoxy-β-D-ribofuranose as sugar moieties are synthesized by biocatalytic transglycosylation of purine bases and the respective 3′-amino-3′-deoxyuridine, 3′-amino-3′-deoxythymidine and 2′-amino-2′-deoxyuridine as donors of the carbohydrate moiety, and the cells of Escherichia coli as a biocatalyst or glutaraldehyde (GA) treated cells of Escherichia coli as a biocatalyst or a mixture of thymidine (uridine) phosphorylase and purine nucleoside phosphorylase.

  含有3-氨基-3-脱氧-β-D-核糖呋喃糖，3-氨基-2,3-二脱氧-β-D-核糖呋喃糖和2-氨基-2-脱氧-β-D-核糖呋喃糖作为糖基团的嘌呤N9-β-D-核苷酸，通过生物催化转基因嘌呤碱基和相应的3'-氨基-3'-脱氧尿苷、3'-氨基-3'-脱氧胸苷和2'-氨基-2'-脱氧尿苷作为碳水化合物基团供体，以大肠杆菌细胞作为生物催化剂或经戊二醛处理的大肠杆菌细胞作为生物催化剂或胸苷（尿苷）磷酸化酶和嘌呤核苷酸磷酸化酶的混合物进行合成。
• HERDEWIJN, PIET;BALZARINI, JAN;PAUWELS, RUDI;JANSSEN, GERARD;VAN, AERSCHO+, NUCLEOSIDES AND NUCLEOTIDES, 8,(1989) N, C. 1231-1257
  作者：HERDEWIJN, PIET、BALZARINI, JAN、PAUWELS, RUDI、JANSSEN, GERARD、VAN, AERSCHO+

  DOI：——

  日期：——
• Nucleic Acid Related Compounds. 91. Biomimetic Reactions Are in Harmony with Loss of 2‘-Substituents as Free Radicals (Not Anions) during Mechanism-Based Inactivation of Ribonucleotide Reductases. Differential Interactions of Azide, Halogen, and Alkylthio Groups with Tributylstannane and Triphenylsilane¹
  作者：Morris J. Robins、Stanislaw F. Wnuk、Amelia E. Hernández-Thirring、Mirna C. Samano

  DOI：10.1021/ja962117m

  日期：1996.1.1

  The initial step in the mechanism-based inactivation of ribonucleotide reductases by 2'-chloro-2'-deoxynucleotides is abstraction of H3' by a proximal free radical on the enzyme. The C3' radical is postulated to undergo spontaneous loss of chloride, and the resulting cationic radical loses a proton to give a 3'-keto intermediate. Successive beta-eliminations produce a Michael acceptor which causes inactivation. This hypothesis would predict rapid loss of mesylate or tosylate anions from C2', but sluggish loss of azide or thiomethoxide. in contrast, loss of azido and methylthio radicals from C2' should occur readily whereas homolysis to give (methyl or tolylsulfonyl)oxy and fluoro radicals should be energetically prohibitive. Protected 3'-O-(phenoxythiocarbonyl)-2'-substitute nucleosides were treated with tributylstannane/AIBN or triphenylsilane/dibenzoyl peroxide in refluxing toluene. The 2'-O-(mesyl and tosyl) and 2'-fluoro compounds underwent direct radical-mediated hydrogenolysis of the thionocarbonate group to give 3'-deoxy-2'-substituted products, whereas 2'-(azido, bromo, chloro, iodo, and methylthio)-3'-thionocarbonates gave 2',3'-didehydro-2',3'-dideoxy derivatives via loss of 2'-substituents from an incipient C3' radical. These results are in harmony with loss of radicals, but not anions, from C2'. The well-known radical-mediated hydrogenolytic cleavage of halogen and methylthio (slow) groups from C2' of the S'-hydroxy (unprotected) precursors and reduction of 2'-azides to amines occurred with tributylstannane/AIBN. Triphenylsilane/dibenzoyl peroxide gave parallel (but slower) hydrogenolysis with the 2'-(iodo, bromo, and methylthio) compounds, but cleavage of the 2'-chloro group was very slow and no reduction of 2'-azides to amines was detected. Rather, the latter system effected slow hydrogenolytic removal of the 2'-azido group. Thus, chemoselective differentiation of certain functional groups is possible with triphenylsilane and tributylstannane. Reduction of azides to amines with tributylstannane is known, but hydrogenolytic deazidation (slow) with triphenylsilane in the absence of amine formation appears to be novel.