4-甲氧基雌酚酮 | 58562-33-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 中文名称: 4-甲氧基雌酚酮
• 中文别名: 4-甲氧基-[13C,2H3]-雌激素酮；4-甲氧基雌酮
• 英文名称: 4-methoxyestrone
• 英文别名: (8R,9S,13S,14S)-3-hydroxy-4-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one
• CAS: 58562-33-7
• 化学式: C₁₉H₂₄O₃
• 分子量: 300.398
• InChiKey: PUEXVLNGOBYUEW-BFDPJXHCSA-N

物化性质

• 溶解度：
  氯仿：微溶，甲醇：微溶

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  22
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.63
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

ADMET

代谢

4-甲氧基雌酮是4-羟基雌酮的人类已知代谢物。

4-methoxyestrone is a known human metabolite of 4-hydroxyestrone.

来源:NORMAN Suspect List Exchange

反应信息

• 作为反应物：
  描述：

  4-甲氧基雌酚酮 在 羟胺 作用下， 以 水 为溶剂， 反应 0.5h， 生成
  参考文献：
  名称：

  Disturbance in sex-steroid serum profiles of cattle in response to exogenous estradiol: A screening approach to detect forbidden treatments

  摘要：

  Estradiol benzoate (EB) has been one of the most widely used estrogenic agents in animal husbandry, as a way of exogenously introducing the natural hormone estradiol-17 beta into the animal organism. Estradiol was previously employed to induce anabolic effects or reproductive improvements in cattle. However, the employment of EB in European countries has been permanently forbidden by Directive 2008/97/EC to guarantee consumers' health. Despite this prohibition, the control of estradiol-17 beta and its esters continues to be a difficult task for residue-monitoring plans in European Communities because official analyses of natural thresholds for hormones in cattle have not yet been established, leading to a lack of confirmation for any exogenous administration of natural hormones. Several researchers have worked on excretion profiles of metabolites, variation in specific hormonal ratios and metabolomic fingerprints after hormonal treatments. This research focuses on the possible existence of disturbances in the serum profile of animals treated with EB in terms of steroid sex hormones (androgens, oestrogens and progestogens), by investigating the serum levels of several of these hormones. The serum samples were collected from three groups of cows: one treated with an intramuscular injection of EB, one treated with a combination of intravaginal EB and progesterone and a control (non-treated) group. The samples have been analysed by a validated high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method, and 17 natural hormones were identified and quantified. Subsequently, data from the serum profiles were submitted for statistic and multivariate analysis, and it was possible to observe a manifest variation between animal groups. The obtained results can help in the development of a viable screening tool for monitoring purposes in cattle. (C) 2010 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.steroids.2010.12.005
• 作为产物：
  描述：

  雌酚酮 在 5% Pd on active carbon ammonium hydroxide 、 氢气 、 碘 、 copper dichloride 作用下， 以 四氢呋喃 、 吡啶 、 甲醇 、 乙醇 为溶剂， 反应 1.0h， 生成 4-甲氧基雌酚酮
  参考文献：
  名称：

  Numazawa, Mitsuteri; Ogura, Yuko; Kimura, Katsuhiko, Journal of Chemical Research, Miniprint, 1985, # 11, p. 3701 - 3715

  摘要：

  DOI：

文献信息

• [EN] IMIDAZOLIUM REAGENT FOR MASS SPECTROMETRY<br/>[FR] RÉACTIF D'IMIDAZOLIUM POUR SPECTROMÉTRIE DE MASSE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2021234004A1

  公开（公告）日：2021-11-25

  The present invention relates to compounds which are suitable to be used in mass spectrometry as well as methods of mass spectrometric determination of analyte molecules using said compounds.

  本发明涉及适用于质谱的化合物，以及利用该化合物进行分析物分子的质谱测定方法。
• Methylation of Catechol Estrogen with Diazomethane
  作者：MASANORI TERANISHI、YOUICHI FUJII、MITSURU YAMAZAKI、SUSUMU MIYABO

  DOI：10.1248/cpb.31.3309

  日期：——

  Dynamic aspects of methylation of catechol estrogen with diazomethane were investigated by means of thin-layer chromatography. The methylation rate of the hydroxyl group at the C-3 position was almost the same as that of the C-2 hydroxyl group in the reaction of 2-hydroxyestrogen, and 2-3 times that of the C-4 hydroxyl group in the reaction of 4-hydroxyestrogen. In these experiments, the maximum yields of 2-methoxyestrone, 2-hydroxyestrone 3-methyl ether, 4-methoxyestrone and 4-hydroxyestrone 3-methyl ether were 32, 39, 13 and 70%, respectively. In addition, demethylation of catechol estrogen dimethyl ethers with boron tribromide and synthesis of 4-hydroxyestrone monomethyl ethers are described.

  通过薄层色谱法研究了二氮甲烷与邻苯二酚雌激素的甲基化反应的动态过程。在2-羟基雌激素反应中，C-3位置的羟基甲基化速率几乎与C-2羟基相同，而在4-羟基雌激素反应中，C-3羟基的甲基化速率是C-4羟基的2-3倍。在这些实验中，2-甲氧基雌酮、2-羟基雌酮3-甲基醚、4-甲氧基雌酮和4-羟基雌酮3-甲基醚的最高产率分别为32%、39%、13%和70%。此外，还描述了用三溴化硼脱除邻苯二酚雌激素二甲基醚的甲基化和4-羟基雌酮单甲基醚的合成。
• [EN] REAGENT FOR MASS SPECTROMETRY<br/>[FR] RÉACTIF POUR SPECTROMÉTRIE DE MASSE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2020020849A1

  公开（公告）日：2020-01-30

  The present invention relates to reagents which are suitable to be used in mass spectrometry as well as methods of mass spectrometric determination of analyte molecules using said reagents.

  本发明涉及适用于质谱的试剂，以及利用所述试剂进行分析物分子的质谱测定方法。
• [EN] BENZYLPYRIDINIUM REAGENT FOR MASS SPECTROMETRY<br/>[FR] RÉACTIF DE BENZYLPYRIDINIUM POUR SPECTROMÉTRIE DE MASSE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2021234003A1

  公开（公告）日：2021-11-25

  The present invention relates to compounds which are suitable to be used in mass spectrometry as well as methods of mass spectrometric determination of analyte molecules using said compounds.

  本发明涉及适用于质谱法的化合物，以及利用这些化合物进行分析物分子的质谱测定方法。
• [EN] REAGENT FOR MASS SPECTROMETRY<br/>[FR] RÉACTIF POUR LA SPECTROMÉTRIE DE MASSE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2021234002A1

  公开（公告）日：2021-11-25

  The present invention relates to compounds which are suitable to be used in mass spectrometry as well as methods of mass spectrometric determination of analyte molecules using said compounds.

  本发明涉及适用于质谱的化合物，以及利用这些化合物进行分析物分子的质谱测定方法。