tert-butyldimethylsilyl 3-azido-4,6-di-O-acetyl-2,3-dideoxy-β-D-arabino-hexopyranoside | 189454-41-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: tert-butyldimethylsilyl 3-azido-4,6-di-O-acetyl-2,3-dideoxy-β-D-arabino-hexopyranoside
• 英文别名: [(2R,3S,4R,6S)-3-acetyloxy-4-azido-6-[tert-butyl(dimethyl)silyl]oxyoxan-2-yl]methyl acetate
• CAS: 189454-41-9
• 化学式: C₁₆H₂₉N₃O₆Si
• 分子量: 387.508
• InChiKey: VCSJQSRTRGBGKW-KBXIAJHMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  26
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  85.4
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  tert-butyldimethylsilyl 3-azido-4,6-di-O-acetyl-2,3-dideoxy-β-D-arabino-hexopyranoside 在 sodium methylate 作用下， 以 甲醇 为溶剂， 反应 1.5h， 以97%的产率得到3-叠氮-2,3-二脱氧基-1-O-(叔丁基二甲基甲硅烷基)-β-D-阿拉伯-六吡喃糖
  参考文献：
  名称：

  Synthesis and Antitumor Activity of New Glycosides of Epipodophyllotoxin, Analogues of Etoposide, and NK 611

  摘要：

  A series of 3-amino- and 3-alkylamino-2-deoxy-beta-D-ribo- and beta-D-arabino-glycosides of 4'-demethylepipodophyllotaxin have been synthesized by means of an improved trimethylsilyl-iodide procedure for the podophyllotoxin-4'-demethylepipodophyllotoxin conversion, an efficient and high yielding synthesis of silyl glycoside donors of 3-azido-2, 3-dideoxy-beta-D-ribo- and beta-D-arabino-hexopyranoside's and stereoselective glycosylations. In vitro evaluation of cytotoxic effects against murine L1210 leukemia critically demonstrates the essential role played by a 4,6-acetal for biological activity. Among the most cytotoxic compounds, 3-amino-2,3-dideoxy- and 3-N,N-(dimethylamino)-2,3-dideoxy etoposide analogues, 17 and 27-29 are at least as potent as etoposide on the in vivo P388 (iv/ip) murine leukemia models. However, surprisingly enough, none of these compounds inhibits the human DNA topoisomerases I or II or binds to tubulin to prevent its polymerization and microtubule assembly. Therefore, their mechanism of action remains to be cleared up.

  DOI：

  10.1021/jm9800752
• 作为产物：
  描述：

  叔丁基二甲基氯硅烷 、 4,6-di-O-acetyl-3-azido-2,3-dideoxy-D-erythro-hexopyranose 在 咪唑 作用下， 以 二氯甲烷 为溶剂， 以20%的产率得到tert-butyldimethylsilyl 3-azido-4,6-di-O-acetyl-2,3-dideoxy-β-D-ribo-hexopyranoside
  参考文献：
  名称：

  Synthesis and Antitumor Activity of New Glycosides of Epipodophyllotoxin, Analogues of Etoposide, and NK 611

  摘要：

  A series of 3-amino- and 3-alkylamino-2-deoxy-beta-D-ribo- and beta-D-arabino-glycosides of 4'-demethylepipodophyllotaxin have been synthesized by means of an improved trimethylsilyl-iodide procedure for the podophyllotoxin-4'-demethylepipodophyllotoxin conversion, an efficient and high yielding synthesis of silyl glycoside donors of 3-azido-2, 3-dideoxy-beta-D-ribo- and beta-D-arabino-hexopyranoside's and stereoselective glycosylations. In vitro evaluation of cytotoxic effects against murine L1210 leukemia critically demonstrates the essential role played by a 4,6-acetal for biological activity. Among the most cytotoxic compounds, 3-amino-2,3-dideoxy- and 3-N,N-(dimethylamino)-2,3-dideoxy etoposide analogues, 17 and 27-29 are at least as potent as etoposide on the in vivo P388 (iv/ip) murine leukemia models. However, surprisingly enough, none of these compounds inhibits the human DNA topoisomerases I or II or binds to tubulin to prevent its polymerization and microtubule assembly. Therefore, their mechanism of action remains to be cleared up.

  DOI：

  10.1021/jm9800752