2',5'-Di-O-tritylinosine | 137965-01-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: 2',5'-Di-O-tritylinosine
• 英文别名: 9-[(2R,3R,4R,5R)-4-hydroxy-3-trityloxy-5-(trityloxymethyl)oxolan-2-yl]-1H-purin-6-one
• CAS: 137965-01-6
• 化学式: C₄₈H₄₀N₄O₅
• 分子量: 752.869
• InChiKey: GWZZJYIQYXDWSH-QQJAHVSNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.7
• 重原子数：
  57
• 可旋转键数：
  12
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  107
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  三苯基氯甲烷 、 肌苷 在 吡啶 、 4-二甲氨基吡啶 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 以16.7%的产率得到2',5'-Di-O-tritylinosine
  参考文献：
  名称：

  A synthesis of 9-(2-deoxy-2-fluoro-.beta.-D-arabinofuranosyl)adenine and -hypoxanthine. An effect of C3'-endo to C2'-endo conformational shift on the reaction course of 2'-hydroxyl group with DAST

  摘要：

  O3',O5',N6-Tritrityladenosine (6), 3',5'-di-O-trityl-N1-benzylinosine (15), and 3',5'-di-O-tritylinosine (18) were prepared and subjected to nucleophilic reaction with DAST. Thus, 6 afforded 2'-beta-fluorine-substituted nucleoside 11 along with the isomeric 2-deoxy-2-(N-trityladenin-3-yl)-3,5-di-O-trityl-alpha-D-arabinofuranosyl fluoride (12). Nucleoside 15, under the same treatment with DAST, gave the desired 2'-fluoroarabino derivative 16 exclusively in high yield. Although 18 was converted into the 2'-beta-fluoro product 19 under the similar conditions, the yield was low. A plausible mechanism of formation of 12 is discussed. Deprotection of 11 and 16 afforded the desired 9-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)adenine (1) and -hypoxanthine (2), respectively, in high yield. The conformational influence of sugar protecting groups on the rate of nucleophilic substitution against elimination is discussed. Treatment of O3',O5',N1-benzylinosine (20) with DAST afforded only the elimination products 9-(3',5'-di-O-benzyl-beta-D-erythro-pent-2-enofuranosyl)-1-benzylhypoxanthine (22) and 3-(benzyloxy)-2-[(benzyloxy)methyl]furan (23). On the other hand, 9-(3,5-di-O-trityl-beta-D-arabinofuranosyl)adenine (26) (prepared from 6 by triflyation followed by NaOAc treatment and deacetylation) afforded a mixture from which 2'-deoxy-2'-fluoroadenosine (27) and 9-(2-deoxy-3,5-di-O-trityl-D-erythro-pent-1-enofuranosyl)-N6-trityladenine (28) were isolated in 60 and 30% yield, respectively. O2',O5',N6-Tritrityladenosine (7) was selectively detritylated with HCO2H/Et2O to give O2',N6-ditrityladenosine (30), which, upon treatment with benzyl chloride/KOH, afforded 3',5'-di-O-benzyl-O2',N6-ditrityladenosine (31). 9-(3,5-Di-O-benzyl-beta-D-arabinofuranosyl)adenine (35) was prepared from 31 by further detritylation with CF3CO2H/CHCl3 and triflyation followed by NaOAc treatment and deacetylation of the product. Treatment of 35 with DAST followed by hydrogenolytic debenzylation afforded 2'-deoxy-2'-fluoroadenosine (3) in high yield. The three-step synthesis described herein, albeit about 10% overall yield, is far superior to the currently available multistep procedures which give the desired 2'-fluoroarabinosylpurines in much less overall yields.

  DOI：

  10.1021/jo00028a030

文献信息

• In search of flavivirus inhibitors: Evaluation of different tritylated nucleoside analogues
  作者：Grégory Chatelain、Yannick Debing、Tine De Burghgraeve、Joanna Zmurko、Milind Saudi、Jef Rozenski、Johan Neyts、Arthur Van Aerschot

  DOI：10.1016/j.ejmech.2013.04.034

  日期：2013.7

  Following up on a hit that was identified in a large scale cell-based antiviral screening effort, a series of triphenylmethyl alkylated nucleoside analogues were synthesized and evaluated for their in vitro antiviral activities against the dengue virus (DENV) and the yellow fever virus (YFV). Hereto, trityl moieties were attached at various positions of the sugar ring combined with subtle variations of the heterocyclic base. Several triphenylmethyl modified nucleosides were uncovered being endowed with submicromolar in vitro antiviral activity against the YFV. The most selective inhibitor in this series was 3',5'-bis-O-tritylated-5-chlorouridine (1b) affording a selectivity index of over 90, whereas the 3',5'-bis-O-tritylated inosine congener (5b) displayed the highest activity, but proved more toxic. The finding of these lipophilic structures being endowed with high antiviral activity for flaviviruses, should stimulate the interest for further structure-activity research. (C) 2013 Elsevier Masson SAS. All rights reserved.
• US5525720A
  申请人：——

  公开号：US5525720A

  公开（公告）日：1996-06-11
• US5750675A
  申请人：——

  公开号：US5750675A

  公开（公告）日：1998-05-12
• [EN] NOVEL SYNTHESIS OF 2'-"UP" FLUORINATED 2''-DEOXY-ARABINOFURANOSYLPURINES
  申请人：SLOAN-KETTERING INSTITUTE FOR CANCER RESEARCH

  公开号：WO1992011276A1

  公开（公告）日：1992-07-09

  (EN) The present invention provides a compound having structure (I) or (II), wherein R1 is hydrogen, benzyl, or a substituted benzyl group; X is hydrogen, a fluoro, an amino, or a substituted amino group; Y is hydrogen, a methoxy, a methylthio, a benzylthio, an isopropyl, a chloro, an amino, or a substituted amino group; Y' is an oxo or a thio group; and Z is hydrogen, a hydroxy, a methoxy, a halogen, an amino, or a substituted amino group. The present invention also provides processes for synthesizing a compound having the above-identified structure as well as the intermediate compounds produced thereby.(FR) L'invention se rapporte à un composé ayant la structure (I) ou (II), où R1 représente l'hydrogène, un benzyle ou un groupe benzyle substitué; X représente l'hydrogène, un fluoro, un amino ou un groupe amino substitué; Y représente l'hydrogène, un méthoxy, un méthylthio, un benzylthio, un isopropyle, un chloro, un amino ou un groupe amino substitué; Y' représente un oxo ou un group thio; et Z représente l'hydrogène, un hydroxy, un méthoxy, un halogène, un amino ou un groupe amino substitué. L'invention se rapporte également à des procédés de synthèse d'un composé ayant la structure précitée ainsi qu'à des composés intermédiaires ainsi produits.
• A synthesis of 9-(2-deoxy-2-fluoro-.beta.-D-arabinofuranosyl)adenine and -hypoxanthine. An effect of C3'-endo to C2'-endo conformational shift on the reaction course of 2'-hydroxyl group with DAST
  作者：Krzysztof W. Pankiewicz、Jacek Krzeminski、Lech A. Ciszewski、Wu Yon Ren、Kyoichi A. Watanabe

  DOI：10.1021/jo00028a030

  日期：1992.1

  O3',O5',N6-Tritrityladenosine (6), 3',5'-di-O-trityl-N1-benzylinosine (15), and 3',5'-di-O-tritylinosine (18) were prepared and subjected to nucleophilic reaction with DAST. Thus, 6 afforded 2'-beta-fluorine-substituted nucleoside 11 along with the isomeric 2-deoxy-2-(N-trityladenin-3-yl)-3,5-di-O-trityl-alpha-D-arabinofuranosyl fluoride (12). Nucleoside 15, under the same treatment with DAST, gave the desired 2'-fluoroarabino derivative 16 exclusively in high yield. Although 18 was converted into the 2'-beta-fluoro product 19 under the similar conditions, the yield was low. A plausible mechanism of formation of 12 is discussed. Deprotection of 11 and 16 afforded the desired 9-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)adenine (1) and -hypoxanthine (2), respectively, in high yield. The conformational influence of sugar protecting groups on the rate of nucleophilic substitution against elimination is discussed. Treatment of O3',O5',N1-benzylinosine (20) with DAST afforded only the elimination products 9-(3',5'-di-O-benzyl-beta-D-erythro-pent-2-enofuranosyl)-1-benzylhypoxanthine (22) and 3-(benzyloxy)-2-[(benzyloxy)methyl]furan (23). On the other hand, 9-(3,5-di-O-trityl-beta-D-arabinofuranosyl)adenine (26) (prepared from 6 by triflyation followed by NaOAc treatment and deacetylation) afforded a mixture from which 2'-deoxy-2'-fluoroadenosine (27) and 9-(2-deoxy-3,5-di-O-trityl-D-erythro-pent-1-enofuranosyl)-N6-trityladenine (28) were isolated in 60 and 30% yield, respectively. O2',O5',N6-Tritrityladenosine (7) was selectively detritylated with HCO2H/Et2O to give O2',N6-ditrityladenosine (30), which, upon treatment with benzyl chloride/KOH, afforded 3',5'-di-O-benzyl-O2',N6-ditrityladenosine (31). 9-(3,5-Di-O-benzyl-beta-D-arabinofuranosyl)adenine (35) was prepared from 31 by further detritylation with CF3CO2H/CHCl3 and triflyation followed by NaOAc treatment and deacetylation of the product. Treatment of 35 with DAST followed by hydrogenolytic debenzylation afforded 2'-deoxy-2'-fluoroadenosine (3) in high yield. The three-step synthesis described herein, albeit about 10% overall yield, is far superior to the currently available multistep procedures which give the desired 2'-fluoroarabinosylpurines in much less overall yields.