-L-aspartic acid 1-methylamide 5-benzyl ester | 216309-90-9

• 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: -L-aspartic acid 1-methylamide 5-benzyl ester
• CAS: 216309-90-9
• 化学式: C₄₇H₅₇N₃O₁₁
• 分子量: 839.983
• InChiKey: AMUCHQMPCQEBSK-OODNAZJBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.76
• 重原子数：
  61.0
• 可旋转键数：
  20.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  168.98
• 氢给体数：
  3.0
• 氢受体数：
  11.0

反应信息

• 作为反应物：
  描述：

  -L-aspartic acid 1-methylamide 5-benzyl ester 在 1-羟基苯并三唑 、 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 、 三氟乙酸 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 22.0h， 生成 -L-aspartic acid 1-methylamide 5-benzyl ester
  参考文献：
  名称：

  Studies on Selectin Blockers. 7. Structure−Activity Relationships of Sialyl Lewis X Mimetics Based on Modified Ser-Glu Dipeptides

  摘要：

  We have previously found that heterochiral fucodipeptides, L-Ser-D-Glu (3a) and D-Ser-L-Glu (3b), exhibited up to 20-100 times more potency than a sialyl Lewis X (sLe(x), 1) and a 3'-sulfated Lewis X analogue (2) toward E-selectin binding and have also proposed, from molecular dynamics calculation, that their strong activities would depend on a possible formation of the type II and/or type II' beta-turn of compounds 3a,b (Tsukida, T.; Hiramatsu, Y.; Tsujishita, H.; Kiyoi, T.; Yoshida, M.; Kurokawa, K.; Moriyama, H.; Ohmoto, H.; Wada, Y.; Saito, T.; Kondo, H. J. Med. Chem. 1997, 40, 3534-3541). To clarify our hypothesis, we synthesized several analogues of compounds 3a,b and investigated their structure-activity relationships. As a result, it was indicated that the type II and/or type II' beta-turn conformation would be a comparatively tight form and would play important roles in favorable binding to E-selectin. These findings indicate that sLe(x) mimetics with type II and type II'-beta-turn dipeptides could be a useful methodology for the design of an active selectin blocker.

  DOI：

  10.1021/jm980267x
• 作为产物：
  描述：

  phenylmethyl N2-{[(1,1-dimethylethyl)oxy]carbonyl}-N1-methyl-L-α-asparaginate 在 盐酸 、 4 A molecular sieve 、 silver trifluoromethanesulfonate 、 1-羟基苯并三唑 、 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 、 三乙胺 、 1,1,3,3-四甲基脲 、 tin(ll) chloride 作用下， 以 1,4-二氧六环 、 氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 39.5h， 生成 -L-aspartic acid 1-methylamide 5-benzyl ester
  参考文献：
  名称：

  Studies on Selectin Blockers. 7. Structure−Activity Relationships of Sialyl Lewis X Mimetics Based on Modified Ser-Glu Dipeptides

  摘要：

  We have previously found that heterochiral fucodipeptides, L-Ser-D-Glu (3a) and D-Ser-L-Glu (3b), exhibited up to 20-100 times more potency than a sialyl Lewis X (sLe(x), 1) and a 3'-sulfated Lewis X analogue (2) toward E-selectin binding and have also proposed, from molecular dynamics calculation, that their strong activities would depend on a possible formation of the type II and/or type II' beta-turn of compounds 3a,b (Tsukida, T.; Hiramatsu, Y.; Tsujishita, H.; Kiyoi, T.; Yoshida, M.; Kurokawa, K.; Moriyama, H.; Ohmoto, H.; Wada, Y.; Saito, T.; Kondo, H. J. Med. Chem. 1997, 40, 3534-3541). To clarify our hypothesis, we synthesized several analogues of compounds 3a,b and investigated their structure-activity relationships. As a result, it was indicated that the type II and/or type II' beta-turn conformation would be a comparatively tight form and would play important roles in favorable binding to E-selectin. These findings indicate that sLe(x) mimetics with type II and type II'-beta-turn dipeptides could be a useful methodology for the design of an active selectin blocker.

  DOI：

  10.1021/jm980267x