L-Abu-L-FDLA | 1274656-32-4

• 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: L-Abu-L-FDLA
• CAS: 1274656-32-4
• 化学式: C₁₆H₂₃N₅O₇
• 分子量: 397.388
• InChiKey: ILBPEPZPEAOAMI-CABZTGNLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.09
• 重原子数：
  28.0
• 可旋转键数：
  11.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  190.73
• 氢给体数：
  4.0
• 氢受体数：
  8.0

反应信息

• 作为产物：
  描述：

  L-2-氨基丁酸 、 NAlpha-(5-氟-2,4-二硝基苯基)-L-亮氨酰胺 在 碳酸氢钠 作用下， 以 丙酮 为溶剂， 反应 1.0h， 生成 L-Abu-L-FDLA
  参考文献：
  名称：

  Cyclic Depsipeptides, Grassypeptolides D and E and Ibu-epidemethoxylyngbyastatin 3, from a Red Sea Leptolyngbya Cyanobacterium

  摘要：

  Two new grassypeptolides and a lyngbyastatin analogue, together with the known dolastatin 12, have been isolated from field collections and laboratory cultures of the marine cyanobacterium Leptolyngbya sp. collected from the SS Thistlegorm shipwreck in the Red Sea. The overall stereostructures of grassypeptolides D (1) and E (2) and Ibu-epidemethoxylyngbyastatin 3 (3) were determined by a combination of 1D and 2D NMR experiments, MS analysis, Marfey's methodology, and HPLC-MS. Compounds 1 and 2 contain 2-methyl-3-aminobutyric acid and 2-aminobutyric acid, while biosynthetically distinct 3 contains 3-amino-2-methylhexanoic acid and the beta-keto amino acid 4-amino-2,2-dimethyl-3-oxopentanoic acid (Ibu). Grassypeptolides D (1) and E (2) showed significant cytotoxicity to HeLa (IC50 = 335 and 192 nM, respectively) and mouse neuro-2a blastoma cells (IC50 = 599 and 407 nM, respectively), in contrast to Ibu-epidemethoxylyngbyastatin 3 (neuro-2a cells, IC50 > 10 mu M) and dolastatin 12 (neuro-2a cells, IC50 > 1 mu M).

  DOI：

  10.1021/np200270d

文献信息

• Tataricins A and B, two novel cyclotetrapeptides from Aster tataricus, and their absolute configuration assignment
  作者：Hui-Min Xu、Hua Yi、Wen-Bing Zhou、Wen-Jun He、Gang-Zhi Zeng、Wen-Yan Xu、Ning-Hua Tan

  DOI：10.1016/j.tetlet.2012.12.111

  日期：2013.3

  Two novel cyclotetrapeptides, tataricins A and B, with a unique cyclopeptide backbone and a △ 2,4Pro side chain, were isolated from the traditional Chinese medicine Aster tataricus. Their structures and absolute configurations were determined using a combination of spectroscopic data, the advanced Marfey’s method, and a total synthesis.

  从传统中药紫t中分离出两个新颖的环四肽，他他汀A和B，具有独特的环肽主链和一个△2,4 Pro侧链。结合光谱数据，先进的Marfey方法和总合成方法确定了它们的结构和绝对构型。
• Astins K–P, six new chlorinated cyclopentapeptides from Aster tataricus
  作者：Hui-Min Xu、Guang-Zhi Zeng、Wen-Bing Zhou、Wen-Jun He、Ning-Hua Tan

  DOI：10.1016/j.tet.2013.07.006

  日期：2013.9

  During further investigation on the methanol extract of roots and rhizomes of Aster tataricus, six new chlorinated cyclopentapeptides, designated as astins K-P (9-14), together with eight known derivatives, astins A-H (1-8), were isolated. Structures of the new cyclopeptides were established using extensive spectroscopic methods, and the absolute configurations were determined by the advanced Marfey's method. Astin P (14) represents a unique cyclopentapeptide linking as cyclo-(L-Pro (Cl-2)(1)-L-allo-Thr(2)-L-Ser(3)-L-beta-Phe(4)-L-Ava(5)). Astin B(2) showed cytotoxicity against BGC-823 cell with IC50 value of 19.2 mu g/ml. Astin C (3) exhibited cytotoxicity on HCT-116 and BGC-823 cells with IC50 values of 13.4 and 3.3 mu g/ml, respectively. (C) 2013 Elsevier Ltd. All rights reserved.