4'-methylpsoralen | 1137-75-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 4'-methylpsoralen
• 英文别名: 3-Methyl-7H-furo[3,2-g]chromen-7-one；3-methylfuro[3,2-g]chromen-7-one
• CAS: 1137-75-3
• 化学式: C₁₂H₈O₃
• mdl: MFCD00449866
• 分子量: 200.194
• InChiKey: NHIJIVPEMQAWBA-UHFFFAOYSA-N

物化性质

• 熔点：
  186-187 °C
• 沸点：
  381.5±37.0 °C(Predicted)
• 密度：
  1.332±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.083
• 拓扑面积：
  39.4
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2932999099

反应信息

• 作为反应物：
  描述：

  4'-methylpsoralen 以 溶剂黄146 为溶剂， 反应 40.0h， 生成 5'-phthalimidomethyl-4'-methylpsoralen
  参考文献：
  名称：

  呋喃香豆素的反应。II †。通过氯甲基化或苄基溴化合成氨基甲基补骨脂素

  摘要：

  为了评估其作为光化学治疗剂（PUVA）的功效，已经合成了几种补骨脂素衍生物，包括各种4'-取代的-4,5'，8-三甲基补骨脂素化合物（1d-j）。改进的非常有效的光敏剂8 methylpsoralen（合成6A）和4,8- dimethylpsoralen（图6b）中描述和图6a已被证明在4'-位经历甲酰化。用NBS对6a和6b进行的自由基溴化作用主要产生8-溴甲基衍生物（8a和d），这些衍生物很容易转化为8-氨基甲基衍生物（8c和f）的方法。如果4'-位被阻断，则亲电取代显然主要发生在补骨脂素系统的5'-位。至少，4′-甲基补骨脂素（9）的氯甲基化主要提供5′-氯甲基衍生物（10a和d），这也导致氨基甲基补骨脂素（10c和f）。

  DOI：

  10.1002/jhet.5570190515
• 作为产物：
  描述：

  7-羟基香豆素 在 potassium carbonate 、 potassium hydroxide 作用下， 以 水 、 丙酮 为溶剂， 反应 48.0h， 生成 4'-methylpsoralen
  参考文献：
  名称：

  具有不同抗炎活性的新型抗炎性补骨脂素衍生物结构的合成

  摘要：

  作为香豆素研究的一个连续过程，合成了12种补骨脂素并评估了它们的抗炎活性。补骨脂素分三步制备：首先，通过von Pechmann缩合反应合成7-羟基香豆素，然后转化为7-（2-氧代丙氧基）香豆素。在最后一步中，将稠合的呋喃环引入分子内的环形成反应中。根据SciFinder搜索，发现12种合成的补骨脂素衍生物中的两种（化合物9和12）是新颖的。这些衍生物通过抑制iNOS和IL-6的表达而具有抗炎活性，但其作用机理似乎取决于取代。化合物6带有丙基侧链的化合物抑制NF-κB介导的转录，而带有苯基取代基的化合物10以转录后方式下调iNOS的表达。结果介绍了补骨脂素衍生物作为有希望的抗炎化合物，有可能治疗涉及iNOS和/或IL-6介导的不良反应的疾病。

  DOI：

  10.1002/jhet.3318

文献信息

• 5'-Aminoalkyl-4'-alkylpsoralens
  申请人：Elder Pharmaceuticals, Inc.

  公开号：US04370344A1

  公开（公告）日：1983-01-25

  The invention relates to 5'-aminoalkyl-4'-alkylpsoralens, having essentially no erythematic photosensitizing activity but at the same time having substantial DNA-binding photosensitizing activity, making them of especial interest from the standpoint of suntanning and psoriasis treatment, characteristics which are unpredictable when the compounds are compared with psoralens of similar but different structure.

  这项发明涉及5'-氨基烷基-4'-烷基香豆素，其基本上没有红斑光敏活性，但同时具有显著的DNA结合光敏活性，使其在晒黑和牛皮癣治疗方面具有特别的兴趣。这些特性在与类似但结构不同的香豆素相比较时是不可预测的。
• Psoralens aminomethylation
  申请人：Elder Pharmaceuticals, Inc.

  公开号：US04950770A1

  公开（公告）日：1990-08-21

  A direct, acid-catalyzed substitution reaction incorporates an N-phthalimidomethyl group on the 4' or 5' carbon of a psoralen in yields of 60-80% via the condensation of an N-hydroxymethylamide or phthalimide (e.g. N-hydroxymethylphthalimide) and an appropriately substituted psoralen. The phthalimide moiety is cleaved from the psoralen ring by treatment with hydrazine to give 60 to 70% yields of the aminomethylpsoralens.

  一种直接的、酸催化的取代反应将N-邻苯二甲酰亚甲基基团引入光敏剂的4'或5'碳上，收率为60-80%，通过N-羟甲基酰胺或邻苯二甲酰亚胺（例如N-羟甲基邻苯二甲酰亚胺）与适当取代的光敏剂的缩合来实现。邻苯二甲酰亚胺基团通过用肼处理从光敏剂环中裂解，得到60到70%的氨基甲基光敏剂收率。
• Structural modification of a specific antimicrobial lead against Helicobacter pylori discovered from traditional Chinese medicine and a structure–activity relationship study
  作者：Bang-Le Zhang、Cheng-Qi Fan、Lei Dong、Fang-Dao Wang、Jian-Min Yue

  DOI：10.1016/j.ejmech.2010.08.045

  日期：2010.11

  Psoralen (1a) was found to be a specific and potent antimicrobial lead against Helicobacter pylori (H. pylori) from a traditional Chinese medicine (TCM) in the bioassay directed isolation. A series of structurally diverse analogues of la were thus designed and synthesized to improve the antimicrobial potency, some of which showed more potent activities than the lead compound (1a) against H. pylori. Among them, compound 25a is 16-fold stronger (MIC = 0.39 mu g/mL) than 1a (MIC = 6.25 mu g/mL), and is even potent than the positive control metronidazole (MIC = 0.50 mu g/mL). The in vitro antimicrobial activities against H. pylori of these structurally diverse analogues based on the scaffold of la have also led to an outline of structure-activity relationship. (C) 2010 Elsevier Masson SAS. All rights reserved.
• Alkoxypsoralens, Novel Nonpeptide Blockers of <i>Shaker</i>-Type K⁺ Channels:  Synthesis and Photoreactivity
  作者：Heike Wulff、Heiko Rauer、Tim Düring、Christine Hanselmann、Katharina Ruff、Anja Wrisch、Stephan Grissmer、Wolfram Hänsel

  DOI：10.1021/jm981032o

  日期：1998.11.1

  A series of psoralens and structurally related 5,7-disubstituted coumarins was synthesized and investigated for their K+ channel blocking activity as well as for their phototoxicity to Artemia salina and their ability to generate singlet oxygen and to photomodify DNA. After screening the compounds on Ranvier nodes of the toad Xenopus Laevis, the affinities of the most promising compounds, which proved to be psoralens bearing alkoxy substituents in the 5-position or alkoxymethyl substituents in the neighboring 4- or 4'-position, to a number of homomeric K+ channels were characterized. All compounds exhibited the highest affinity to Kv1.2. 5,8-Diethoxypsoralen (10d) was found to be an equally potent inhibitor of Kv1.2 and Kv1.3, while lacking the phototoxicity normally inherent in psoralens. The reported compounds represent a novel series of nonpeptide blockers of Shaker-type K+ channels that could be further developed into selective inhibitors of Kv1.2 or Kv1.3.
• Ray et al., Journal of the Chemical Society, 1935, p. 813,815
  作者：Ray et al.

  DOI：——

  日期：——