(S)-3-(2-aminoethylthio)propane-1,2-diyl dipalmitate | 1229018-49-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (S)-3-(2-aminoethylthio)propane-1,2-diyl dipalmitate
• 英文别名: [(2S)-3-(2-aminoethylsulfanyl)-2-hexadecanoyloxypropyl] hexadecanoate
• CAS: 1229018-49-8
• 化学式: C₃₇H₇₃NO₄S
• 分子量: 628.057
• InChiKey: ICCAMOWGYSLHFP-DHUJRADRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.4
• 重原子数：
  43
• 可旋转键数：
  37
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  104
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (S)-3-(2-aminoethylthio)propane-1,2-diyl dipalmitate 、 BOC-L-丝氨酸 在 4-二甲氨基吡啶 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 为溶剂， 以80%的产率得到(6S,13R)-6-(hydroxymethyl)-2,2-dimethyl-4,7-dioxo-3-oxa-11-thia-5,8-diazatetradecane-13,14-diyl dipalmitate
  参考文献：
  名称：

  Structure−Activity Relationships in Toll-like Receptor-2 Agonistic Diacylthioglycerol Lipopeptides

  摘要：

  The N-termini of bacterial lipoproteins are acylated with a (S)-(2,3-bisacyloxypropyl)cysteinyl residue. Lipopeptides derived from lipoproteins activate innate immune responses by engaging Toll-like receptor 2 (TLR2) and are highly immunostimulatory and yet without apparent toxicity in animal models. The lipopeptides may therefore be useful as potential immunotherapeutic agents. Previous structure activity relationships in such lipopeptides have largely been obtained using murine cells, and it is now clear that significant species-specific differences exist between human and murine TLR responses. We have examined in detail the role of the highly conserved Cys residue as well as the geometry and stereochemistry of the Cys-Ser dipeptide unit. (R)-Diacylthioglycerol analogues are maximally active in reporter gene assays using human TLR2. The Cys-Ser dipeptide unit represents the minimal part-structure, but its stereochemistry was found not to be a critical determinant of activity. The thioether bridge between the diacyl and dipeptide units is crucial, and replacement by an oxoether bridge results in a dramatic decrease in activity.

  DOI：

  10.1021/jm901839g
• 作为产物：
  描述：

  (S)-3-((2-tert-butylcarbonylamino)ethylthio)propane-1,2-diyl dipalmitate 在 三氟乙酸 作用下， 反应 0.5h， 以99%的产率得到(S)-3-(2-aminoethylthio)propane-1,2-diyl dipalmitate
  参考文献：
  名称：

  Structure−Activity Relationships in Toll-like Receptor-2 Agonistic Diacylthioglycerol Lipopeptides

  摘要：

  The N-termini of bacterial lipoproteins are acylated with a (S)-(2,3-bisacyloxypropyl)cysteinyl residue. Lipopeptides derived from lipoproteins activate innate immune responses by engaging Toll-like receptor 2 (TLR2) and are highly immunostimulatory and yet without apparent toxicity in animal models. The lipopeptides may therefore be useful as potential immunotherapeutic agents. Previous structure activity relationships in such lipopeptides have largely been obtained using murine cells, and it is now clear that significant species-specific differences exist between human and murine TLR responses. We have examined in detail the role of the highly conserved Cys residue as well as the geometry and stereochemistry of the Cys-Ser dipeptide unit. (R)-Diacylthioglycerol analogues are maximally active in reporter gene assays using human TLR2. The Cys-Ser dipeptide unit represents the minimal part-structure, but its stereochemistry was found not to be a critical determinant of activity. The thioether bridge between the diacyl and dipeptide units is crucial, and replacement by an oxoether bridge results in a dramatic decrease in activity.

  DOI：

  10.1021/jm901839g

文献信息

• Structure−Activity Relationships in Toll-like Receptor-2 Agonistic Diacylthioglycerol Lipopeptides
  作者：Wenyan Wu、Rongti Li、Subbalakshmi S. Malladi、Hemamali J. Warshakoon、Matthew R. Kimbrell、Michael W. Amolins、Rehman Ukani、Apurba Datta、Sunil A. David

  DOI：10.1021/jm901839g

  日期：2010.4.22

  The N-termini of bacterial lipoproteins are acylated with a (S)-(2,3-bisacyloxypropyl)cysteinyl residue. Lipopeptides derived from lipoproteins activate innate immune responses by engaging Toll-like receptor 2 (TLR2) and are highly immunostimulatory and yet without apparent toxicity in animal models. The lipopeptides may therefore be useful as potential immunotherapeutic agents. Previous structure activity relationships in such lipopeptides have largely been obtained using murine cells, and it is now clear that significant species-specific differences exist between human and murine TLR responses. We have examined in detail the role of the highly conserved Cys residue as well as the geometry and stereochemistry of the Cys-Ser dipeptide unit. (R)-Diacylthioglycerol analogues are maximally active in reporter gene assays using human TLR2. The Cys-Ser dipeptide unit represents the minimal part-structure, but its stereochemistry was found not to be a critical determinant of activity. The thioether bridge between the diacyl and dipeptide units is crucial, and replacement by an oxoether bridge results in a dramatic decrease in activity.