(2R,3R,4S)-2-benzyl-3-(tert-butyldimethylsilanyloxy)-4-hydroxypentanoic acid (2S)-2-tert-butoxycarbonylamino-2-carboxyethyl ester | 215797-95-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 苯丙酸
• 英文名称: (2R,3R,4S)-2-benzyl-3-(tert-butyldimethylsilanyloxy)-4-hydroxypentanoic acid (2S)-2-tert-butoxycarbonylamino-2-carboxyethyl ester
• CAS: 215797-95-8
• 化学式: C₂₆H₄₃NO₈Si
• 分子量: 525.715
• InChiKey: TWARMONXRMQKHT-NRDMVMEKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.14
• 重原子数：
  36.0
• 可旋转键数：
  11.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.65
• 拓扑面积：
  131.39
• 氢给体数：
  3.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  (2R,3R,4S)-2-benzyl-3-(tert-butyldimethylsilanyloxy)-4-hydroxypentanoic acid (2S)-2-tert-butoxycarbonylamino-2-carboxyethyl ester 在 4-二甲氨基吡啶 、 2,4,6-三氯苯甲酰氯 、 氟化氢吡啶 、 三乙胺 作用下， 以 四氢呋喃 、 吡啶 、 二氯甲烷 为溶剂， 反应 20.5h， 生成 (2S,3R,4R)-isobutyric acid 4-benzyl-2-methyl-5-oxo-tetrahydrofuran-3-yl ester
  参考文献：
  名称：

  Total synthesis of the antifungal dilactones UK-2A and UK-3A: The determination of their relative and absolute configurations, analog synthesis and antifungal activities

  摘要：

  The synthesis of the antifungal dilactones, UK-2A and UK-3A, is described. In addition to providing a workable synthetic route to these potent antifungal antibiotics, this has allowed us to determine the assignment of the relative and absolute configurations in the nine-membered ring. Furthermore, UK-2A analogs were also synthesized and evaluated their antifungal activities and cytotoxic activities along with UK-2A, (2R, 3R, 4S, 7R)-UK-2A, UK-3A, (2R, 3R, 4S, 7R)-UK-3A, and antimycin A. The structural requirements for the selective cytotoxicity against yeasts and filamentous fungi will also be suggested. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(98)00777-7
• 作为产物：
  描述：

  (2R,3R,4S)-2-Benzyl-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-pentanoic acid (S)-2-benzyloxycarbonyl-2-tert-butoxycarbonylamino-ethyl ester 在 palladium dihydroxide 氢气 作用下， 以 乙醇 为溶剂， 25.0 ℃ 、405.3 kPa 条件下， 反应 14.0h， 以100%的产率得到(2R,3R,4S)-2-benzyl-3-(tert-butyldimethylsilanyloxy)-4-hydroxypentanoic acid (2S)-2-tert-butoxycarbonylamino-2-carboxyethyl ester
  参考文献：
  名称：

  Total synthesis of the antifungal dilactones UK-2A and UK-3A: The determination of their relative and absolute configurations, analog synthesis and antifungal activities

  摘要：

  The synthesis of the antifungal dilactones, UK-2A and UK-3A, is described. In addition to providing a workable synthetic route to these potent antifungal antibiotics, this has allowed us to determine the assignment of the relative and absolute configurations in the nine-membered ring. Furthermore, UK-2A analogs were also synthesized and evaluated their antifungal activities and cytotoxic activities along with UK-2A, (2R, 3R, 4S, 7R)-UK-2A, UK-3A, (2R, 3R, 4S, 7R)-UK-3A, and antimycin A. The structural requirements for the selective cytotoxicity against yeasts and filamentous fungi will also be suggested. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(98)00777-7