N⁶,2',3',5'-tetra-O-benzoyladenosine | 6984-53-8

• 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: N⁶,2',3',5'-tetra-O-benzoyladenosine
• 英文别名: N⁶,2',3',5'-tetra-O-benzoyl-β-D-adenosine；N⁶-benzoyladenosine 2',3',5'-tri-O-benzoate；[(2R,3R,4R,5R)-5-(6-benzamidopurin-9-yl)-3,4-dibenzoyloxyoxolan-2-yl]methyl benzoate
• CAS: 6984-53-8
• 化学式: C₃₈H₂₉N₅O₈
• 分子量: 683.677
• InChiKey: KMEKEYIHPVLOJK-JYYIKNSZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6
• 重原子数：
  51
• 可旋转键数：
  13
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  161
• 氢给体数：
  1
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  N⁶,2',3',5'-tetra-O-benzoyladenosine 在 氨 作用下， 以 甲醇 为溶剂， 反应 16.0h， 以74%的产率得到腺苷
  参考文献：
  名称：

  High-Throughput Five Minute Microwave Accelerated Glycosylation Approach to the Synthesis of Nucleoside Libraries

  摘要：

  [GRAPHICS]The Vorbruggen glycosylation reaction was adapted into a one-step 5 min/130 degrees C microwave assisted reaction. Triethanolamine in acetontrile containing 2% water was determined to be optimal for the neutralization of trimethylsilyl triflate allowing for direct MPLC purification of the reaction mixture. When coupled with a NH3/methanol deprotection reaction, a high-throughput method of nucleoside library synthesis was enabled. The method was demonstrated by examining the ribosylation of 48 nitrogen containing heteroaromatic bases that included 25 purines, four pyrazolopyrimidines, two 8-azapurines, one 2-azapurine, two imidazopyridines, two benzimidazoles, three imidazoles, three 1,2,4-triazoles, two pyrimidines, two 3-deazapyrimidines, one quinazolinedione, and one alloxazine. Of these, 32 yielded single regioisomer products, and six resulted in separable mixtures. Seven examples provided inseparable regioisomer mixtures of -two to three compounds (16 nucleosides), and three examples failed to yield isolable products. For the 45 single isomers isolated, the average two-step overall yield +/- SD was 26 +/- 16%, and the average purity +/- SD was 95 +/- 6%. A total of 58 different nucleosides were prepared of which 15 had not previously been accessed directly from glycosylation/deprotection of a readily available base.

  DOI：

  10.1021/jo061885l
• 作为产物：
  描述：

  卡培他滨杂质25 在 N-碘代丁二酰亚胺 、 三氟甲磺酸 吡啶 、 4 A molecular sieve 、 camphor-10-sulfonic acid 作用下， 以 乙腈 为溶剂， 反应 0.92h， 生成 N⁶,2',3',5'-tetra-O-benzoyladenosine
  参考文献：
  名称：

  Pentenyl ribosides: new reagents for purine nucleoside synthesis

  摘要：

  Protected pent-4-enyl ribosides and deoxyribosides were synthesized as reagents for the preparation of nucleosides and deoxynucleosides. Reaction of pent-4-enyl 2',3',5'-tri-O-benzoyl-D-erythro-pentofuranoside with five nucleobases in the presence of N-iodosuccinimide/trifluoromethanesulfonic acid (NIS/TfOH) produced the N-9-beta-nucleosides in 50-70% yields. Pent-4-enyl-2-deoxy-3',5'-di-O-p-toluyl-alpha-D-erythro-pentofuranoside coupled with 6-chloropurine in the presence of iodonium dicollidine perchlorate (IDCP) to produce a mixture of deoxynucleoside isomers (N-9, N-7, alpha,beta) in 91% yield. Under the same conditions, coupling of 6-chloropurine with pent-4-enyl 2'-deoxy-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-D-erythro-pentofuranoside produced only N-9alpha and N-9beta products in 40% total yield. The N-9beta nucleoside was the only product of the reaction of 6-chloropurine with pent-4-enyl 2'-O-benzoyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-D-erythro-pentofuranoside in the presence of NIS/TfOH. Pent-4-enyl ribosides appear to be useful reagents for the synthesis of ribo- and deoxyribonucleosides under mild (NIS/TfOH) or neutral (IDCP) conditions.

  DOI：

  10.1021/jo00077a057

文献信息

• Regioselective protection of carbohydrate derivatives.
  作者：Shigeyoshi Nishino、Hatsuko Takamura、Yoshiharu Ishido

  DOI：10.1016/s0040-4020(01)87616-x

  日期：1986.1

  A simple treatment of fully aroylated purine and pyrimidine ribo-nucleosides with pulverized potassium tert-butoxide in tetrahydrofuran (THF) or dichloromethane under a controlled condition gave a mixture of the corresponding di-O-aroyl derivatives in which 2'-OH derivatives are preponderant over 3'-OH derivatives; 3',5'-di-O-benzoyluridine, N4, 3', 5'-tribenzoylcytidine, N4, 3', 5'-tri-o-toluoylcytidine

  在控制条件下，在四氢呋喃（THF）或二氯甲烷中，用粉碎的叔丁醇钾简单地处理完全芳基化的嘌呤和嘧啶核糖核苷，得到相应的二-O-芳酰基衍生物的混合物，其中2'-OH衍生物占优势超过3'-OH衍生物；3' ，5'-二-O- benzoyluridine，N 4，3' ，5'-tribenzoylcytidine，N 4，3' ，5'-三-邻- toluoylcytidine，N 2，3' ，5'-tribenzoylguanosine，和获得N 2-异丁酰基-3'，5'-二-O-苯甲酰基鸟苷结晶，产率分别为80％，78％，72％，67％和65％。
• Benzoyl Cyanide: A Mild and Efficient Reagent for Benzoylation of Nucleosides
  作者：Ashok K. Prasad、Vineet Kumar、Jyotirmoy Maity、Zhiwei Wang、Vasulinga T. Ravikumar、Yogesh S. Sanghvi、Virinder S. Parmar

  DOI：10.1081/scc-200051693

  日期：2005.4.1

  Abstract Efficient benzoylation of various nucleosides has been accomplished in pyridine with a catalytic amount of DMAP and benzoyl cyanide under mild conditions.

  摘要 在温和条件下，使用催化量的 DMAP 和苯甲酰氰在吡啶中实现了各种核苷的有效苯甲酰化。
• Partial protection of carbohydrate derivatives. part 18. simple, preparative procedure for 5'--acylribonucleosides; highly regioselective -deacylation at 2' and 3' positions of fully acylated purine and pyrimidine ribonucleoside through sodium methoxide-thf system
  作者：Shigeyoshi Nishino、Md.Azizur Rahman、Hatsuko Takamura、Yoshiharu Ishido

  DOI：10.1016/s0040-4020(01)91350-x

  日期：1985.1

  A treatment of fully acylated purine and pyrimidine ribonucleosides with a small excess amount of sodium methoxide in THF at room temperature gave the corresponding 5'-acylates in excellent yields; N-acyl groups on the nucleic acid base moieties of adenosine and cytidine in addition to guanosine derivatives satisfactorily survived under the conditions used.

  在室温下用少量过量的甲醇钠在THF中处理完全酰化的嘌呤和嘧啶核糖核苷，得到的相应5'-酰化物收率很好；除鸟苷衍生物外，腺苷和胞苷的核酸碱基部分上的N-酰基在所使用的条件下令人满意地存活。
• Selective deacylation of peracylated ribonucleosides
  作者：Jared W. Rigoli、Michael E. Østergaard、Kirsten M. Canady、Dale C. Guenther、Patrick J. Hrdlicka

  DOI：10.1016/j.tetlet.2009.01.147

  日期：2009.4

  A protocol for chemoselective deprotection of N,O-acylated ribonucleosides has been developed. Peracylated pyrimidine ribonucleosides subjected to guanidinium nitrate and NaOMe in MeOH/CH2Cl2 at 0 °C undergo high yielding O-deacylation, while even more pronounced chemoselectivity is observed with peracylated purine ribonucleosides as O5′-acyl groups are preserved. Nucleobase-protecting groups (ABz

  已经开发出用于N，O-酰化核糖核苷的化学选择性脱保护的方案。在0°C下于MeOH / CH 2 Cl 2中于硝酸胍和NaOMe中进行过酰化的嘧啶核糖核苷进行高产率的O-脱酰化，而由于保留了O5'-酰基，因此在过酰化的嘌呤核糖核苷中观察到的化学选择性更高。核碱基保护基团（A Bz，C Bz，G iBu和U Bz）在这些条件下稳定，使该试剂混合物成为收集核苷化学中保护基方案的宝贵补充。
• A solid-supported acidic oxazolium perchlorate as an easy-handling catalyst for the synthesis of modified pyrimidine nucleosides via Vorbrüggen-type N -glycosylation
  作者：Nabamita Basu、Kin-ichi Oyama、Masaki Tsukamoto

  DOI：10.1016/j.tetlet.2017.03.046

  日期：2017.5

  A solid-supported acidic oxazolium perchlorate was investigated as a heterogeneous catalyst in N-glycosylation reactions using silylated modified pyrimidines and an acylated ribose or glucose to afford the corresponding pyrimidine nucleosides. This salt is a nonhygroscopic and stable powder whose activity is comparable to that of 2-methyl-5-phenylbenzoxazolium perchlorate. A reaction with this polymer

  研究了固体负载的酸性高氯酸恶唑鎓盐在N-糖基化反应中的非均相催化剂，该反应使用甲硅烷基化的修饰的嘧啶和酰化的核糖或葡萄糖得到相应的嘧啶核苷。该盐是非吸湿性和稳定粉末，其活性与高氯酸2-甲基-5-苯基苯并恶唑鎓的活性相当。与该聚合物催化剂的反应可以以克为单位进行。还研究了固体负载催化剂的可重复使用性。