(S)-2-[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyrylamino]-3-oxo-butyric acid benzyl ester | 831239-01-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 芴
• 英文名称: (S)-2-[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyrylamino]-3-oxo-butyric acid benzyl ester
• 英文别名: benzyl (2S)-2-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-methylbutanoyl]amino]-3-oxobutanoate
• CAS: 831239-01-1
• 化学式: C₃₁H₃₂N₂O₆
• 分子量: 528.605
• InChiKey: NVPRXFMSPMAWGV-NSOVKSMOSA-N

物化性质

• 沸点：
  724.4±60.0 °C(Predicted)
• 密度：
  1.224±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  39
• 可旋转键数：
  12
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  111
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (S)-2-[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyrylamino]-3-oxo-butyric acid benzyl ester 在 palladium on activated charcoal 三氟甲磺酸酐 、 氢气 、 三苯基氧化膦 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 3.0h， 生成 2-[(S)-1-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propyl]-5-methyl-oxazole-4-carboxylic acid
  参考文献：
  名称：

  The total synthesis of bistratamides F–I

  摘要：

  The total synthesis of bistratamides F-I (2-5) have been achieved in overall yields of 3, 10, 13, and 27%, respectively. The thiazole substructure was prepared utilizing a MnO2 oxidation of a thiazoline, synthesized from a Val-Cys dipeptide using bis(triphenyl)oxodiphosphonium trifluoromethanesulfonate. The serine-based oxazole substructure was prepared from a Val-Ser dipeptide using literature methods. The threonine-derived oxazole substructure was synthesized from a ketoamide dipeptide using the bisphosphonium salt employed for thiazoline preparation. Most of the amide bonds were formed using HBTU and HOBt in the presence of DIEA. The final macrocyclization step was accomplished efficiently by PyBOP and DMAP in all cases. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.10.024
• 作为产物：
  描述：

  (2S,3R)-2-[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyrylamino]-3-hydroxy-butyric acid benzyl ester 在 戴斯-马丁氧化剂 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以1.66 g的产率得到(S)-2-[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyrylamino]-3-oxo-butyric acid benzyl ester
  参考文献：
  名称：

  The total synthesis of bistratamides F–I

  摘要：

  The total synthesis of bistratamides F-I (2-5) have been achieved in overall yields of 3, 10, 13, and 27%, respectively. The thiazole substructure was prepared utilizing a MnO2 oxidation of a thiazoline, synthesized from a Val-Cys dipeptide using bis(triphenyl)oxodiphosphonium trifluoromethanesulfonate. The serine-based oxazole substructure was prepared from a Val-Ser dipeptide using literature methods. The threonine-derived oxazole substructure was synthesized from a ketoamide dipeptide using the bisphosphonium salt employed for thiazoline preparation. Most of the amide bonds were formed using HBTU and HOBt in the presence of DIEA. The final macrocyclization step was accomplished efficiently by PyBOP and DMAP in all cases. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.10.024