Design and synthesis of a unique ditopic macrocyclic fluorescent receptor containing furan ring as a spacer for the recognition of dicarboxylic acids
作者:Shyamaprosad Goswami、Swapan Dey、Subrata Jana
DOI:10.1016/j.tet.2008.04.086
日期:2008.6
A macrocyclic fluorescent receptor was designed and synthesised and the binding study with three different types of dicarboxylicacids was performed with the receptor being found to have appreciable association constants. Downfield shifts of specific amide protons in 1:1 binding by 1H NMR and the quenching in the fluorescence spectra reveal strong binding and thus unambiguously support the complexation
设计并合成了大环荧光受体,并进行了与三种不同类型二元羧酸的结合研究,结果发现该受体具有明显的缔合常数。通过1 H NMR以1:1结合的形式发生特定酰胺质子的下移,荧光光谱中的猝灭显示出强大的结合力,因此明确支持受体1与二元羧酸的络合。
Molecular recognition of xanthine alkaloids: First synthetic receptors for theobromine and a series of new receptors for caffeine
Synthetic receptors (H3, H4, H5 and H6) are designed and synthesised for the first time for theobromine, a xanthine alkaloid used as a diuretic. The synthesis of the receptor H6 is achieved by Co(PPh3)3Cl-mediated homocoupling of 3-(ethoxycarbonyl)benzyl bromide 12 under mild conditions. New caffeine receptors (H7, H8 and H9) are designed and synthesised. The binding results of theobromine and caffeine (both by NMR and UV studies) are reported.
Nucleotide base recognition: ditopic binding of guanine to a macrocyclic receptor containing naphthyridine and naphthalene units
作者:Andrew D. Hamilton、Nalin Pant
DOI:10.1039/c39880000765
日期:——
A novel series of receptors for guanine has been prepared and is shown, by 1H n.m.r., to bind the nucleotidebase via both hydrogen bonding and aromatic stacking interactions.
已经制备了一系列新的鸟嘌呤受体,并通过1 H nmr显示了通过氢键和芳族堆积相互作用结合核苷酸碱基的方法。
Tamura, Norio; Mitsui, Keita; Nabeshima, Tatsuya, Journal of the Chemical Society. Perkin transactions II, 1994, # 10, p. 2229 - 2238