6-[1,3]dioxan-2-yl-4-oxo-hexanoic acid methyl ester

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: 6-[1,3]dioxan-2-yl-4-oxo-hexanoic acid methyl ester
• 英文别名: methyl 6-(2,5-dioxoanyl)-4-oxohexanoate；Methyl 6-(1,3-dioxan-2-yl)-4-oxohexanoate；methyl 6-(1,3-dioxan-2-yl)-4-oxohexanoate
• 化学式: C₁₁H₁₈O₅
• 分子量: 230.261
• InChiKey: CJPYTGYFMGYETF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  16
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  61.8
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  6-[1,3]dioxan-2-yl-4-oxo-hexanoic acid methyl ester 在 水 、 sodium hydroxide 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 3.0h， 生成 6-(1,3-dioxan-2-yl)-4-oxohexanoic acid
  参考文献：
  名称：

  Synthesis and structural characterization of carboxyethylpyrrole-modified proteins: mediators of age-related macular degeneration

  摘要：

  Protein modifications in which the e-amino group of lysyl residues is incorporated into a 2-(omega-carboxy-ethyl)pyrrole (CEP) are mediators of age-related macular degeneration (AMD). They promote both angiogenesis into the retina ('wet AMD') and geographic retinal atrophy ('dry AMD'). Blood levels of CEPs are biomarkers for clinical prognosis of the disease. To enable mechanistic studies of their role in promoting AMD, for example, through the activation of B- and T-cells, interaction with receptors, or binding with complement proteins, we developed an efficient synthesis of CEP derivatives, that is especially effective for proteins. The structures of tryptic peptides derived from CEP-modified proteins were also determined. A key finding is that 4,7-dioxoheptanoic acid 9-fluorenylmethyl ester reacts with primary amines to provide 9-fluorenylmethyl esters of CEP-modified proteins that can be deprotected in situ with 1,8-diazabicyclo[5.4.0]undec-7-ene without causing protein denaturation. The introduction of multiple CEP-modifications with a wide variety of CEP: protein ratios is readily achieved using this strategy. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2009.09.009
• 作为产物：
  描述：

  2-(2-溴乙基)-1,3-二氧杂环己烷 、 丁二酸单甲酯酰氯 在 碘 、 magnesium 作用下， 以 四氢呋喃 为溶剂， 以78%的产率得到6-[1,3]dioxan-2-yl-4-oxo-hexanoic acid methyl ester
  参考文献：
  名称：

  Synthesis and structural characterization of carboxyethylpyrrole-modified proteins: mediators of age-related macular degeneration

  摘要：

  Protein modifications in which the e-amino group of lysyl residues is incorporated into a 2-(omega-carboxy-ethyl)pyrrole (CEP) are mediators of age-related macular degeneration (AMD). They promote both angiogenesis into the retina ('wet AMD') and geographic retinal atrophy ('dry AMD'). Blood levels of CEPs are biomarkers for clinical prognosis of the disease. To enable mechanistic studies of their role in promoting AMD, for example, through the activation of B- and T-cells, interaction with receptors, or binding with complement proteins, we developed an efficient synthesis of CEP derivatives, that is especially effective for proteins. The structures of tryptic peptides derived from CEP-modified proteins were also determined. A key finding is that 4,7-dioxoheptanoic acid 9-fluorenylmethyl ester reacts with primary amines to provide 9-fluorenylmethyl esters of CEP-modified proteins that can be deprotected in situ with 1,8-diazabicyclo[5.4.0]undec-7-ene without causing protein denaturation. The introduction of multiple CEP-modifications with a wide variety of CEP: protein ratios is readily achieved using this strategy. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2009.09.009

文献信息

• A general and straightforward approach to α,ω-ketoesters
  作者：Francesco Babudri、Vito Fiandanese、Giuseppe Marchese、Angela Punzi

  DOI：10.1016/0040-4020(96)00805-8

  日期：1996.10

  Chemoselective cross-coupling reactions of monoesters of dicarboxylic acid chlorides with organocopper reagents derived from Grignard reagents, cuprous bromide, and lithium bromide, provide a simple and straightforward method for synthesizing a variety of ketoesters.

  二羧酸氯化物单酯与衍生自格氏试剂，溴化亚铜和溴化锂的有机铜试剂的化学选择性交叉偶联反应为合成各种酮酸酯提供了一种简单明了的方法。
• Synthesis and structural characterization of carboxyethylpyrrole-modified proteins: mediators of age-related macular degeneration
  作者：Liang Lu、Xiaorong Gu、Li Hong、James Laird、Keeve Jaffe、Jaewoo Choi、John Crabb、Robert G. Salomon

  DOI：10.1016/j.bmc.2009.09.009

  日期：2009.11

  Protein modifications in which the e-amino group of lysyl residues is incorporated into a 2-(omega-carboxy-ethyl)pyrrole (CEP) are mediators of age-related macular degeneration (AMD). They promote both angiogenesis into the retina ('wet AMD') and geographic retinal atrophy ('dry AMD'). Blood levels of CEPs are biomarkers for clinical prognosis of the disease. To enable mechanistic studies of their role in promoting AMD, for example, through the activation of B- and T-cells, interaction with receptors, or binding with complement proteins, we developed an efficient synthesis of CEP derivatives, that is especially effective for proteins. The structures of tryptic peptides derived from CEP-modified proteins were also determined. A key finding is that 4,7-dioxoheptanoic acid 9-fluorenylmethyl ester reacts with primary amines to provide 9-fluorenylmethyl esters of CEP-modified proteins that can be deprotected in situ with 1,8-diazabicyclo[5.4.0]undec-7-ene without causing protein denaturation. The introduction of multiple CEP-modifications with a wide variety of CEP: protein ratios is readily achieved using this strategy. (C) 2009 Elsevier Ltd. All rights reserved.