7-[2'-deoxy-3',5'-di-O-mesyl-β-D-threo-pentofuranosyl]-2-isobutyrylamino-4-methoxy-7H-pyrrolo[2,3-d]pyrimidine | 915286-75-8

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 7-[2'-deoxy-3',5'-di-O-mesyl-β-D-threo-pentofuranosyl]-2-isobutyrylamino-4-methoxy-7H-pyrrolo[2,3-d]pyrimidine
• CAS: 915286-75-8
• 化学式: C₁₈H₂₆N₄O₉S₂
• 分子量: 506.558
• InChiKey: PTSZIFMWEGWLME-MGPQQGTHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.64
• 重原子数：
  33.0
• 可旋转键数：
  9.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  165.01
• 氢给体数：
  1.0
• 氢受体数：
  12.0

反应信息

• 作为反应物：
  描述：

  7-[2'-deoxy-3',5'-di-O-mesyl-β-D-threo-pentofuranosyl]-2-isobutyrylamino-4-methoxy-7H-pyrrolo[2,3-d]pyrimidine 在 palladium on activated charcoal 叠氮化锂 、 sodium p-thiocresolate 、 氢气 、 二乙胺 作用下， 以 乙醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， -40.0~90.0 ℃ 、310.26 kPa 条件下， 反应 10.0h， 生成
  参考文献：
  名称：

  Solid-phase synthesis of positively charged deoxynucleic guanidine (DNG) oligonucleotide incorporating 7-deazaguanine bases

  摘要：

  DNG nucleotides represent a positively charged DNA analog in which the negatively charged phosphodiester linkages of DNA are replaced by positively charged guanidinium linkages. We report herein the synthesis of 3'-end, middle, and 5'-end monomers required for the synthesis of a DNG sequence in which the natural guanine base is replaced by 7-deazaguanine (C(7)G). 7-Deazaguanine nucleobase was chosen because of their unique glycoside bond stability and their ability to prevent G-quartet formation. A facile and high yield two-step synthesis of xylo-7-deazaguanine 7, a key intermediate for introducing 3'-amino functionality, is carried out under Mitsunobu conditions. Subsequently, the 3'-Fmoc-protected thiourea monomers 13 and 19 were prepared from 7 via their corresponding 3'-amino-7-deazaguanines 11 and 18, respectively. The smooth coupling of these thiourea monomers with monomethoxytrityl (MMTr)-protected 3'-end monomer 25, prepared from 5, occurred on solid phase in 3' -> 5' direction. The resultant trimeric HO-c(7)Ggc(7)Ggc(7)G-OH (1) has been designed to be included into DNA using standard DNA synthesis technology. The combination of C-c(7)G G base pairing and electrostatic association of phosphodiester and guanidinium backbone allows the small synthesized DNG trimer 1 to form 1:1 complex with DNA-C pentamer. (c) 2006 Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmc.2006.05.074
• 作为产物：
  描述：

  1-氯-2-脱氧-3,5-二-O-对氯苯甲酰基-D-核糖 在 吡啶 、 4-二甲氨基吡啶 、 三甲基氯硅烷 、 偶氮二甲酸二异丙酯 、 DOWEX 550A 、 氨 、 sodium hydride 、 三苯基膦 作用下， 以 四氢呋喃 、 甲醇 、 乙腈 为溶剂， 反应 32.5h， 生成 7-[2'-deoxy-3',5'-di-O-mesyl-β-D-threo-pentofuranosyl]-2-isobutyrylamino-4-methoxy-7H-pyrrolo[2,3-d]pyrimidine
  参考文献：
  名称：

  Solid-phase synthesis of positively charged deoxynucleic guanidine (DNG) oligonucleotide incorporating 7-deazaguanine bases

  摘要：

  DNG nucleotides represent a positively charged DNA analog in which the negatively charged phosphodiester linkages of DNA are replaced by positively charged guanidinium linkages. We report herein the synthesis of 3'-end, middle, and 5'-end monomers required for the synthesis of a DNG sequence in which the natural guanine base is replaced by 7-deazaguanine (C(7)G). 7-Deazaguanine nucleobase was chosen because of their unique glycoside bond stability and their ability to prevent G-quartet formation. A facile and high yield two-step synthesis of xylo-7-deazaguanine 7, a key intermediate for introducing 3'-amino functionality, is carried out under Mitsunobu conditions. Subsequently, the 3'-Fmoc-protected thiourea monomers 13 and 19 were prepared from 7 via their corresponding 3'-amino-7-deazaguanines 11 and 18, respectively. The smooth coupling of these thiourea monomers with monomethoxytrityl (MMTr)-protected 3'-end monomer 25, prepared from 5, occurred on solid phase in 3' -> 5' direction. The resultant trimeric HO-c(7)Ggc(7)Ggc(7)G-OH (1) has been designed to be included into DNA using standard DNA synthesis technology. The combination of C-c(7)G G base pairing and electrostatic association of phosphodiester and guanidinium backbone allows the small synthesized DNG trimer 1 to form 1:1 complex with DNA-C pentamer. (c) 2006 Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmc.2006.05.074