1-{(3'S,4'S)-5'-O-[(tert-butyl)diphenylsilyl]-2',3'-dideoxy-3'-C-(mercaptomethyl)-β-pentofuranosyl}thymine | 452304-72-2

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘧啶核苷
• 英文名称: 1-{(3'S,4'S)-5'-O-[(tert-butyl)diphenylsilyl]-2',3'-dideoxy-3'-C-(mercaptomethyl)-β-pentofuranosyl}thymine
• 英文别名: 1-[(2R,4S,5S)-5-[[tert-butyl(diphenyl)silyl]oxymethyl]-4-(sulfanylmethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
• CAS: 452304-72-2
• 化学式: C₂₇H₃₄N₂O₄SSi
• 分子量: 510.729
• InChiKey: FSSDIYLKSKYMCH-AGILITTLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.26
• 重原子数：
  35.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  73.32
• 氢给体数：
  2.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  1-{(3'S,4'S)-5'-O-[(tert-butyl)diphenylsilyl]-2',3'-dideoxy-3'-C-(mercaptomethyl)-β-pentofuranosyl}thymine 在 4-二甲氨基吡啶 、 Oxone 、 氢氟酸 、 sodium acetate 、 caesium carbonate 、 三乙胺 作用下， 以 四氢呋喃 、 吡啶 、 甲醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 23.5h， 生成 2'-deoxy-3'-de(phosphinicooxy)-5'-O-(4,4'-dimethoxytrityl)thymidylylmethylenesulfonylmethylene-(3'->5')-2',5'-dideoxythymidine
  参考文献：
  名称：

  摘要：

  Chimeric DNA molecules containing four different linking groups, the natural phosphate, 5'-methylenephosphonate. bis(methylene)phosphinate, and bis(methylene) sulfone (see Fig.1), were directly compared for their ability to form duplexes with complementary DNA and DNA chimeras. From melting temperatures for analogous complementary sequences, general conclusions about the impact of geometric distortion of the internucleotide linkage around the two P-O-C bridges were drawn, as were conclusions about the impact on duplex stability that arises from the removal of the negative charge in the linking group. Each structural perturbation diminished the melting temperature, by ca. -2.5degrees per modification for the 5'-methylenephosphonate, -3.5degrees per modification for the bis(methylene)phosphinate, and -4.5degrees per modification for the bis(methylene) sulfone linker. These results have implications for DNA chemistry including the design of 'antisense' candidates and the proposal of alternative genetic materials in the search for non-terrean life.

  DOI：

  10.1002/1522-2675(200209)85:9<2777::aid-hlca2777>3.0.co;2-1
• 作为产物：
  描述：

  1-{(3'R,4'S)-5'-O-[(tert-butyl)diphenylsilyl]-2',3'-dideoxy-3'-C-(hydroxymethyl)-β-pentofuranosyl}thymine 在 sodium hydroxide 、 偶氮二甲酸二异丙酯 、 三苯基膦 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 3.0h， 生成 1-{(3'S,4'S)-5'-O-[(tert-butyl)diphenylsilyl]-2',3'-dideoxy-3'-C-(mercaptomethyl)-β-pentofuranosyl}thymine
  参考文献：
  名称：

  摘要：

  Chimeric DNA molecules containing four different linking groups, the natural phosphate, 5'-methylenephosphonate. bis(methylene)phosphinate, and bis(methylene) sulfone (see Fig.1), were directly compared for their ability to form duplexes with complementary DNA and DNA chimeras. From melting temperatures for analogous complementary sequences, general conclusions about the impact of geometric distortion of the internucleotide linkage around the two P-O-C bridges were drawn, as were conclusions about the impact on duplex stability that arises from the removal of the negative charge in the linking group. Each structural perturbation diminished the melting temperature, by ca. -2.5degrees per modification for the 5'-methylenephosphonate, -3.5degrees per modification for the bis(methylene)phosphinate, and -4.5degrees per modification for the bis(methylene) sulfone linker. These results have implications for DNA chemistry including the design of 'antisense' candidates and the proposal of alternative genetic materials in the search for non-terrean life.

  DOI：

  10.1002/1522-2675(200209)85:9<2777::aid-hlca2777>3.0.co;2-1

文献信息

• [EN] LINKAGE MODIFIED OLIGOMERIC COMPOUNDS<br/>[FR] COMPOSÉS OLIGOMÈRES MODIFIÉS PAR LIAISON
  申请人：IONIS PHARMACEUTICALS INC

  公开号：WO2019245957A1

  公开（公告）日：2019-12-26

  The present invention provides gapped oligomeric compounds comprising from 1 to about 3 internucleoside linkages having one of formulas I to XVI. In certain embodiments, inclusion of from 1 to about 3 internucleoside linkages of one of formulas I to XVI, improves selectivity for a target RNA relative to an off target RNA. In certain embodiments, the improved selectivity also provides an improved toxicity profile. Certain such oligomeric compounds are useful for hybridizing to a complementary nucleic acid, including but not limited, to nucleic acids in a cell. In certain embodiments, hybridization results in modulation of the amount of activity or expression of the target nucleic acid in a cell.

  本发明提供了包含从1到大约3个核苷酸间连接的间隙寡聚合物化合物，其中所述核苷酸间连接具有I至XVI式中的一种。在某些实施例中，包含I至XVI式中的一种核苷酸间连接，可以提高与目标RNA相对于非靶RNA的选择性。在某些实施例中，提高的选择性还提供了改进的毒性概况。某些这样的寡聚合物化合物适用于与互补核酸杂交，包括但不限于细胞中的核酸。在某些实施例中，杂交导致细胞中目标核酸的活性或表达量的调节。