建立了在微波辐射下,由不同的芳族醛与丙二腈和苯酚衍生物的混合物制备4 H-色烯衍生物的多组分反应。与作为参考药物的长春碱和秋水仙碱相比,评估了目标化合物对四种癌细胞系MCF-7,HCT-116,HepG-2和A549的细胞毒活性。通常,与标准药物相比,几种化合物显示出良好的细胞生长抑制活性。结构与活性之间的关系研究表明,在4 H中的4位和6位取代具有特定卤素原子的-色烯核增加了分子抵抗不同细胞系的能力。根据光谱数据,IR,1 H NMR,13 C NMR和MS数据确定合成的化合物的结构。
The amino side chains do matter: chemoselectivity in the one-pot three-component synthesis of 2-amino-4H-chromenes by supramolecular catalysis with amino-appended β-cyclodextrins (ACDs) in water
作者:Yufeng Ren、Bo Yang、Xiali Liao
DOI:10.1039/c5cy01888a
日期:——
In this study, the one-pot three-component synthesis of 2-amino-4H-chromenes was accomplished by supramolecular catalysis using a series of well-designed amino-appended β-cyclodextrins (ACDs) in water. The catalytic mechanism was elucidated in detail with 1D and 2DNMR and ESI-MS analyses, while the key roles of amino side chains of ACDs in the reaction chemoselectivity were addressed for the first
Synthesis of several 4H-chromene derivatives of expected antitumor activity
作者:Ahmed M. Fouda
DOI:10.1007/s00044-016-1565-3
日期:2016.6
preparation of 4H-chromene derivatives under microwave irradiation from different aromatic aldehydes with a mixture of malononitrile and phenol derivatives were established. The cytotoxic activity of the target compounds was evaluated against four cancer cell lines MCF-7, HCT-116, HepG-2 and A549 in comparison with vinblastine and colchicine as reference drugs. Generally, several compounds showed good cell
建立了在微波辐射下,由不同的芳族醛与丙二腈和苯酚衍生物的混合物制备4 H-色烯衍生物的多组分反应。与作为参考药物的长春碱和秋水仙碱相比,评估了目标化合物对四种癌细胞系MCF-7,HCT-116,HepG-2和A549的细胞毒活性。通常,与标准药物相比,几种化合物显示出良好的细胞生长抑制活性。结构与活性之间的关系研究表明,在4 H中的4位和6位取代具有特定卤素原子的-色烯核增加了分子抵抗不同细胞系的能力。根据光谱数据,IR,1 H NMR,13 C NMR和MS数据确定合成的化合物的结构。
Iodine mediated synthesis of coumarins from chromenes
作者:Himanshu Sharma、Mohini Mourya、Lokesh K. Soni、Debanjan Guin、Yogesh C. Joshi、Mahaveer P. Dobhal、Ashok K. Basak
DOI:10.1016/j.tetlet.2015.11.019
日期:2015.12
Iodine mediated rapid conversion of 2-amino-3-cyano-4-aryl-4H chromenes to the corresponding coumarins in the presence of water is described. Several chromenes are obtained in high yields without chromatographic purification. Under anhydrous conditions, 2-iminochromenes are obtained as major products. (C) 2015 Elsevier Ltd. All rights reserved.
Diisopropyl azodicarboxylate mediated selective dehydrogenation of 2-amino-3-cyano 4 H -chromenes
作者:Himanshu Sharma、Mohini Mourya、Debanjan Guin、Yogesh C. Joshi、Mahabeer P. Dobhal、Ashok K. Basak
DOI:10.1016/j.tetlet.2017.03.049
日期:2017.5
Selective dehydrogenation of 2-amino-3-cyano 4H-chromenes to the corresponding 2-iminochromenes mediated by diisopropyl azodicarboxylate under neutral conditions is reported. The dehydrogenation reaction is compatible with phenolic hydroxyl group and generates iminochromene in high yields. The methodology provides an easy access to coumarin and N-tosyl 2-amino-3-cyano-4-aryl 4H-chromenes.