5'-(tert-butoxycarbonyl)-3-ethyl-4'-(2-methoxycarbonylethyl)-3',4-dimethyl-2,2'-dipyrrylmethane-5-carboxylic acid | 31837-51-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 5'-(tert-butoxycarbonyl)-3-ethyl-4'-(2-methoxycarbonylethyl)-3',4-dimethyl-2,2'-dipyrrylmethane-5-carboxylic acid
• 英文别名: 5-tert-Butoxycarbonyl-5'-carboxy-3'-aethyl-4-(2-methoxycarbonylaethyl)-3,4'-dimethyl-dipyrrolylmethan；4-ethyl-3'-(2-methoxycarbonyl-ethyl)-3,4'-dimethyl-5,5'-methanediyl-bis-pyrrole-2-carboxylic acid 2'-tert-butyl ester；4-ethyl-5-[[4-(3-methoxy-3-oxopropyl)-3-methyl-5-[(2-methylpropan-2-yl)oxycarbonyl]-1H-pyrrol-2-yl]methyl]-3-methyl-1H-pyrrole-2-carboxylic acid
• CAS: 31837-51-1
• 化学式: C₂₃H₃₂N₂O₆
• 分子量: 432.517
• InChiKey: KWJNGRAGHXZMDC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  31
• 可旋转键数：
  11
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.52
• 拓扑面积：
  122
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  5'-(tert-butoxycarbonyl)-3-ethyl-4'-(2-methoxycarbonylethyl)-3',4-dimethyl-2,2'-dipyrrylmethane-5-carboxylic acid 在 甲醇 、 硫酸 、 氢溴酸 、 三氟乙酸 、 copper dichloride 作用下， 反应 3.42h， 生成 3,13,17-triethyl-8-(2-methoxycarbonylethyl)-2,7,12,18-tetramethylporphyrin
  参考文献：
  名称：

  Normal and Abnormal Heme Biosynthesis. 1. Synthesis and Metabolism of Di- and Monocarboxylic Porphyrinogens Related to Coproporphyrinogen-III and Harderoporphyrinogen:  A Model for the Active Site of Coproporphyrinogen Oxidase

  摘要：

  Coproporphyrinogen oxidase (copro'gen oxidase), which catalyses the conversion of coproporphyrinogen-III via a monovinylic intermediate to protoporphyrinogen-IX, is one of the least well understood enzymes in the heme biosynthetic pathway. To develop a model for the substrate recognition and binding recognition for this enzyme, a series of substrate analogues were prepared with two alkyl substituents on positions 13 and 17 in place of the usual propionate residues. Although the required substrate probes are porphyrinogens (hexahydroporphyrins), the corresponding porphyrin methyl esters were initialy synthesized via a,c-biladiene intermediates. These were hydrolyzed and reduced with 3% sodium amalgam to give the unstable porphyrinogens needed for the biochemical investigations. These modified structures were metabolized by avian preparations of copro'gen oxidase to give monovinylic products, but the second propionate residue was not further metabolized. In three cases, the metabolites were isolated and further characterized by proton NMR spectroscopy and mass spectrometry. When methyl or ethyl groups were placed at the 13 and 17 positions, the resulting porphyrinogens were very good substrates (although the ethyl version, mesoporphyrinogen-VI, gave slightly better results), but when propyl units were introduced metabolism was significantly inhibited and the butyl-substituted structure was only slightly transformed after long incubation periods. These results suggest the presence of an active-site lipophobic region near the catalytic site for copro'gen oxidase. The observation that the related 3-vinyl- and 3-ethylporphyrinogens with 13,17-diethyl substituents were not substrates for this enzyme confirmed the need for a second propionate residue to hold the substrate in place at the catalytic site.

  DOI：

  10.1021/jo981473f
• 作为产物：
  描述：

  benzyl 5-(acetoxymethyl)-4-ethyl-3-methyl-1H-pyrrole-2-carboxylate 在 palladium on activated charcoal Montmorillonite clay K-10 、 氢气 、 三乙胺 作用下， 以 甲醇 、 氯仿 为溶剂， 25.0 ℃ 、303.37 kPa 条件下， 反应 38.0h， 生成 5'-(tert-butoxycarbonyl)-3-ethyl-4'-(2-methoxycarbonylethyl)-3',4-dimethyl-2,2'-dipyrrylmethane-5-carboxylic acid
  参考文献：
  名称：

  Normal and Abnormal Heme Biosynthesis. 1. Synthesis and Metabolism of Di- and Monocarboxylic Porphyrinogens Related to Coproporphyrinogen-III and Harderoporphyrinogen:  A Model for the Active Site of Coproporphyrinogen Oxidase

  摘要：

  Coproporphyrinogen oxidase (copro'gen oxidase), which catalyses the conversion of coproporphyrinogen-III via a monovinylic intermediate to protoporphyrinogen-IX, is one of the least well understood enzymes in the heme biosynthetic pathway. To develop a model for the substrate recognition and binding recognition for this enzyme, a series of substrate analogues were prepared with two alkyl substituents on positions 13 and 17 in place of the usual propionate residues. Although the required substrate probes are porphyrinogens (hexahydroporphyrins), the corresponding porphyrin methyl esters were initialy synthesized via a,c-biladiene intermediates. These were hydrolyzed and reduced with 3% sodium amalgam to give the unstable porphyrinogens needed for the biochemical investigations. These modified structures were metabolized by avian preparations of copro'gen oxidase to give monovinylic products, but the second propionate residue was not further metabolized. In three cases, the metabolites were isolated and further characterized by proton NMR spectroscopy and mass spectrometry. When methyl or ethyl groups were placed at the 13 and 17 positions, the resulting porphyrinogens were very good substrates (although the ethyl version, mesoporphyrinogen-VI, gave slightly better results), but when propyl units were introduced metabolism was significantly inhibited and the butyl-substituted structure was only slightly transformed after long incubation periods. These results suggest the presence of an active-site lipophobic region near the catalytic site for copro'gen oxidase. The observation that the related 3-vinyl- and 3-ethylporphyrinogens with 13,17-diethyl substituents were not substrates for this enzyme confirmed the need for a second propionate residue to hold the substrate in place at the catalytic site.

  DOI：

  10.1021/jo981473f

文献信息

• Normal and Abnormal Heme Biosynthesis. 1. Synthesis and Metabolism of Di- and Monocarboxylic Porphyrinogens Related to Coproporphyrinogen-III and Harderoporphyrinogen:  A Model for the Active Site of Coproporphyrinogen Oxidase
  作者：Timothy D. Lash、Ukti N. Mani、Martin A. Drinan、Chun Zhen、Troii Hall、Marjorie A. Jones

  DOI：10.1021/jo981473f

  日期：1999.1.1

  Coproporphyrinogen oxidase (copro'gen oxidase), which catalyses the conversion of coproporphyrinogen-III via a monovinylic intermediate to protoporphyrinogen-IX, is one of the least well understood enzymes in the heme biosynthetic pathway. To develop a model for the substrate recognition and binding recognition for this enzyme, a series of substrate analogues were prepared with two alkyl substituents on positions 13 and 17 in place of the usual propionate residues. Although the required substrate probes are porphyrinogens (hexahydroporphyrins), the corresponding porphyrin methyl esters were initialy synthesized via a,c-biladiene intermediates. These were hydrolyzed and reduced with 3% sodium amalgam to give the unstable porphyrinogens needed for the biochemical investigations. These modified structures were metabolized by avian preparations of copro'gen oxidase to give monovinylic products, but the second propionate residue was not further metabolized. In three cases, the metabolites were isolated and further characterized by proton NMR spectroscopy and mass spectrometry. When methyl or ethyl groups were placed at the 13 and 17 positions, the resulting porphyrinogens were very good substrates (although the ethyl version, mesoporphyrinogen-VI, gave slightly better results), but when propyl units were introduced metabolism was significantly inhibited and the butyl-substituted structure was only slightly transformed after long incubation periods. These results suggest the presence of an active-site lipophobic region near the catalytic site for copro'gen oxidase. The observation that the related 3-vinyl- and 3-ethylporphyrinogens with 13,17-diethyl substituents were not substrates for this enzyme confirmed the need for a second propionate residue to hold the substrate in place at the catalytic site.