tert-butyl N-((3R)-3-{[tert-butyl(dimethyl)silyl]oxy}butoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate | 752235-85-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: tert-butyl N-((3R)-3-{[tert-butyl(dimethyl)silyl]oxy}butoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate
• 英文别名: tert-butyl (2S)-2-[[(3R)-3-[tert-butyl(dimethyl)silyl]oxybutoxy]carbonylamino]-3-[[2-[(5R)-3-(4-cyanophenyl)-4,5-dihydro-1,2-oxazol-5-yl]acetyl]amino]propanoate
• CAS: 752235-85-1
• 化学式: C₃₀H₄₆N₄O₇Si
• 分子量: 602.803
• InChiKey: NCSNYIHBBMDEMX-XRODADMRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.79
• 重原子数：
  42
• 可旋转键数：
  16
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.63
• 拓扑面积：
  148
• 氢给体数：
  2
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  tert-butyl N-((3R)-3-{[tert-butyl(dimethyl)silyl]oxy}butoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate 在 palladium on activated charcoal 吡啶 、 盐酸羟胺 、 氢气 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 20.0 ℃ 、137.9 kPa 条件下， 反应 3.5h， 生成 tert-butyl 3-{[((5R)-3-{4-[amino(imino)methyl]phenyl}-4,5-dihydro-5-isoxazolyl)acetyl]amino}-N-((3R)-3-{[tert-butyl(dimethyl)silyl]oxy}butoxycarbonyl)-L-alaninate
  参考文献：
  名称：

  Synthesis of N-Butyl Side Chain Hydroxylated Metabolites of Roxifiban, a Platelet Glycoprotein IIb/IIIa Receptor Antagonist

  摘要：

  Syntheses of three n-butyl side chain hydroxylated metabolites of Roxifiban (5, 6a and 6b) are reported. Initial use of benzyl as hydroxyl protecting group gave poor yield during its removal by catalytic hydrogenation, due to complication from N-O cleavage of the isoxazoline. This problem was eliminated by the use of TBDMS as the hydroxyl protecting group. The chemical structures of these metabolites as well as the intermediates have been fully characterized.

  DOI：

  10.3987/com-04-10087
• 作为产物：
  描述：

  (S)- 3 -氨基- 2 -羰基氨基丙酸叔丁酯 在 palladium dihydroxide 1,4-环己二烯 、 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、 三乙胺 作用下， 以 四氢呋喃 、 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 12.5h， 生成 tert-butyl N-((3R)-3-{[tert-butyl(dimethyl)silyl]oxy}butoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate
  参考文献：
  名称：

  Synthesis of N-Butyl Side Chain Hydroxylated Metabolites of Roxifiban, a Platelet Glycoprotein IIb/IIIa Receptor Antagonist

  摘要：

  Syntheses of three n-butyl side chain hydroxylated metabolites of Roxifiban (5, 6a and 6b) are reported. Initial use of benzyl as hydroxyl protecting group gave poor yield during its removal by catalytic hydrogenation, due to complication from N-O cleavage of the isoxazoline. This problem was eliminated by the use of TBDMS as the hydroxyl protecting group. The chemical structures of these metabolites as well as the intermediates have been fully characterized.

  DOI：

  10.3987/com-04-10087