3380-73-2Relevant articles and documents
Design and synthesis of β-carboline and combretastatin derivatives as anti-neutrophilic inflammatory agents
Kumar, Sunil,Wang, Yi-Hsuan,Chen, Po-Jen,Chang, Yu-Chia,Kashyap, Hemant K.,Shen, Ya-Ching,Yu, Huang-Ping,Hwang, Tsong-Long
, (2021/04/09)
A series of β-carboline derivatives was synthesized by the Pictet-Spengler reaction with or without the combretastatin skeleton. The structures of these derivatives were elucidated by spectroscopic techniques. All synthesized compounds were evaluated for
Synthesis of crystalline tetrahydro-beta-carboline
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Paragraph 0085-0089; 0095-0099; 0105-0109, (2021/03/23)
The present invention relates to a method for preparing a tetrahydro-beta-carboline compound, which comprises a step of preparing a tetrahydro-beta-caboline compound by reacting a tryptamine compound and an aldehyde in an aqueous solution using a reaction accelerator containing a divalent acid. Accordingly, the method for preparing a tetrahydro-beta-carboline compound according to the present invention is an eco-friendly synthetic method that does not use an explosive organic solvent, but uses water as a solvent and tartaric acid which is a natural product as a reaction accelerator, thereby causing no environmental pollution; and requiring no separation process in addition to a simple filtering process since final products are crystals. Therefore, the method for preparing a tetrahydro-beta-carboline compound can be carried out in an industrially very simple and suitable process.
Selective construction of alkaloid scaffolds by alcohol-based direct and mild aerobic oxidative Pictet-Spengler reactions
Han, Feng,Li, Huan,Liu, Haicheng,Liu, Jianping,Xu, Qing
supporting information, p. 7079 - 7085 (2020/10/02)
Employing TBN/TEMPO as the catalysts and oxygen as the oxidant, the biologically and pharmaceutically significant tetrahydro-β-carboline and β-carboline alkaloid scaffolds that used to be obtained by multi-step processes can now be selectively obtained in only one-stepviadirect aerobic oxidative Pictet-Spengler reactions of tryptamines with alcohols under mild conditions, with water generated as the byproduct. In this reaction, TBN/TEMPO was interestingly found to be able to facilitate the cyclization step of the whole reaction. This method tolerates a variety ofC- andN-substituted tryptamines, and both the more reactive benzylic and allylic alcohols and the less reactive aliphatic alcohols. This method can also be extended to dihydro-β-carboline synthesis and applied to the more available and more economical tryptophan for β-carboline synthesis, revealing its broad substrate scope and potential in synthetic applications.