Iron-Catalyzed Four-Component Reaction for the Synthesis of Protected Primary Amines
作者:Bai-Ling Yang、Shi-Kai Tian
DOI:10.1002/ejoc.200700627
日期:2007.10
developed to produce protected primary amines by a novel tandem nitrogen protection/direct reductive amination of carbonyl compounds. In the presence of 5 mol-% of an iron(II) salt, a wide variety of aldehydes and ketones were transformed into their corresponding protected primary amines in good to excellent yields under “pure” multicomponent reaction (MCR) conditions. This chemistry was further extended
A facile protocol for N-Cbz protection of amines in PEG-600
作者:Chun Lin Zhang、Dong Feng Zhang、Hong Yi Zhao、Zi Yun Lin、Hai Hong Huang
DOI:10.1016/j.cclet.2012.05.012
日期:2012.7
An efficient and eco-friendly protocol for the chemoselective N-benzyloxycarbonylation of amines was described. The reaction of amines with benzyl chloroformate (Cbz-Cl) in the presence of PEG-600 at room temperature afforded the corresponding N-Cbz derivatives in excellent yields. The method is applicable to the N-Cbz protection of aliphatic (acyclic and cyclic) and aromatic amines. (C) 2012 Hai Hong Huang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Vicarini; Carmellino; Borgna, Farmaco, Edizione Scientifica, 1982, vol. 37, # 9, p. 627 - 632
作者:Vicarini、Carmellino、Borgna
DOI:——
日期:——
Design, synthesis and SAR of antitubercular benzylpiperazine ureas
作者:Sohal Satish、Rohan Chitral、Amitkumar Kori、Basantkumar Sharma、Jayashree Puttur、Afreen A. Khan、Deepali Desle、Kavita Raikuvar、Aaron Korkegian、Elvis A. F. Martis、Krishna R. Iyer、Evans C. Coutinho、Tanya Parish、Santosh Nandan
DOI:10.1007/s11030-020-10158-3
日期:2022.2
With the aim of delineating the SAR associated with (I), fifty-five analogs were synthesized and screened against Mtb. The SAR suggests that the piperazine ring, benzyl urea and piperonyl moieties are essential signatures of this series. Active compounds in this series are metabolically stable, have low cellular toxicity and are valuable leads for optimization. Molecular docking suggests these molecules
摘要 GSK Tres Cantos 的科学家披露的N-糠基哌嗪脲被选为来自表型全细胞筛选的抗分枝杆菌。用苯环取代 GSK Tres Cantos 分子中的呋喃环产生的分子 ( I ) 对Mtb H37Rv 的 MIC 为 1 μM,细胞毒性低(HepG2 IC 50 ~ 80 μM),良好的 DMPK 特性和特异性山地车_ 为了描绘与 ( I ) 相关的 SAR,合成了 55 种类似物并针对Mtb进行了筛选. SAR 表明哌嗪环、苄基脲和胡椒基部分是该系列的基本特征。该系列中的活性化合物代谢稳定,细胞毒性低,是优化的宝贵线索。分子对接表明这些分子像 Q203 一样占据 QcrB 的 Q0 位点。 图形摘要 N-糠基哌嗪-1-羧酰胺的生物等排替代产生了分子 (I) 一种具有令人满意的 PD、代谢和毒性特征的新型先导。
Coupling biocatalysis with high-energy flow reactions for the synthesis of carbamates and β-amino acid derivatives
作者:Alexander Leslie、Thomas S Moody、Megan Smyth、Scott Wharry、Marcus Baumann
DOI:10.3762/bjoc.17.33
日期:——
A continuous flow process is presented that couples a Curtius rearrangement step with a biocatalytic impurity tagging strategy to produce a series of valuable Cbz-carbamate products. Immobilized CALB was exploited as a robust hydrolase to transform residual benzyl alcohol into easily separable benzyl butyrate. The resulting telescoped flow process was effectively applied across a series of acid substrates