Biomolecular Labelling Using Multifunctional Biotin Analogues
申请人:Thomas Neil R.
公开号:US20120083599A1
公开(公告)日:2012-04-05
Novel biotin analogues, such as 2-Azidobiotin, comprising the ureido ring of natural biotin with the thiophene ring, optionally modified, and a modified sidechain having a functional end group, preferably selected from the group consisting of a carboxylic acid, amine, alcohol, thiol, aldehyde and a halide, and at least one bio-orthogonally reactive chemical group located elsewhere in the sidechain. The analogues are used for labelling target structures and biomolecules, such as peptides and proteins in vitro or in vivo.
[EN] HIGH-EFFICIENCY LOW-TOXICITY ANTI-CANCER COMPOUND SYNTHESIZED BY AUTOCATALYSIS IN CELLS AND LIVING BODIES AND SYNTHESIS METHOD FOR ANTI-CANCER COMPOUND<br/>[FR] COMPOSÉ ANTICANCÉREUX À FAIBLE TOXICITÉ ET À EFFICACITÉ ÉLEVÉE SYNTHÉTISÉ PAR AUTOCATALYSE DANS DES CELLULES ET DES CORPS VIVANTS ET PROCÉDÉ DE SYNTHÈSE D'UN COMPOSÉ ANTICANCÉREUX<br/>[ZH] 细胞及活体内自催化合成的高效低毒抗癌化合物及其合成方法
A large series of 3-carboxamido-7-substituted cournarins have been synthesized and tested in vitro for their human monoamine oxidase A and B (hMAO-A and hMAO-B) inhibitory activity. Taking into account all the relevant structural information on MAOs reported in the literature, we made some changes in the coumarin nucleus and examined with particular attention the effect on activity and selectivity of substituting at position 3 with N-aryl or N-alkyl carboxamide and at position 7 with a benzyloxy or a 4'-F-benzyloxy group. Some of the assayed compounds proved to be potent, selective inhibitors of hMAO-B with IC50 values in the micromolar range. To better understand the enzyme-inhibitor interaction and to explain the selectivity of the most active compounds toward hMAOs, molecular modeling studies were carried out on new, high resolution, hMAO-A and hMAO-B crystallographic structures.
Coumarin-based tripodal chemosensor for selective detection of Cu(II) ion and resultant complex as anion probe through a Cu(II) displacement approach
作者:Jinzhi Sun、Xiang Xu、Guanghui Yu、Weina Li、Jinsheng Shi
DOI:10.1016/j.tet.2018.01.013
日期:2018.3
properties were fully investigated by spectroscopic techniques. As revealed by the results, tripodal 1 exhibits excellent selectivity toward copper(II) by forming a 1:1 complex with triazole N as the main binding sites. And the resulted 1·Cu2+ complex shows recognition ability toward H2PO4− by metal displacement approach. The recognition mechanism was further investigated by computer calculation.
本文合成了一种基于天然香豆素的新型三脚架荧光受体,并通过光谱技术对其离子识别特性进行了充分研究。结果表明,三脚架1通过与三唑N作为主要结合位点形成1:1络合物,对铜(II)表现出优异的选择性。和所得到的1 ·铜2+复合节目识别能力朝向ħ 2 PO 4 -通过金属位移方法。通过计算机计算进一步研究了识别机制。