نتایج جستجو برای: macrocyclic

تعداد نتایج: 3419  

Journal: :Organic & biomolecular chemistry 2010
Masayuki Tera Keisuke Iida Kazunori Ikebukuro Hiroyuki Seimiya Kazuo Shin-Ya Kazuo Nagasawa

A BODIPY-labeled macrocyclic heptaoxazole, L1BOD-7OTD, was developed as a fluorescent ligand for G-quadruplexes. The results of the study show that L1BOD-7OTD both selectively induces the formation of intramolecular G-quadruplexes from some G-quadruplex forming oligonucleotides (GFOs). In addition, the labelled macrocyclic heptaozaxole strongly binds to and stabilizes intramolecular G-quadruple...

2007
N. Raman S. Parameswari

Three novel complexes of Cu(II), Co(II) and Zn(II) using a macrocyclic ligand derived by the condensation of diethylphthalate and benzidine have been designed,synthesized and characterized by UV-Vis.,IR,Mass and Elemental analyses data in order to find out their antifungal activities. The stoichiometry of the complexes has been found to be 1: 1(Metal : Ligand). The analytical data indicate that...

Journal: :Organic & biomolecular chemistry 2012
Kieron M G O'Connell Henning S G Beckmann Luca Laraia Helen T Horsley Andreas Bender Ashok R Venkitaraman David R Spring

Macrocyclic compounds represent a structural class with exceptional potential for biological activity; however, they have historically been underrepresented in screening collections and synthetic libraries. In this article we report the development of a highly step-efficient strategy for the diversity-oriented synthesis of complex macrocyclic architectures, using a modular approach based on the...

Journal: :journal of sciences islamic republic of iran 0

some new macrocyclic dibenzotrioxadiamides, dibenzotetraoxadiamide, dibenzopentaoxadiamide, dibenzothiatrioxadiamide, tribenzotrioxadiamides and tetrabenzohexaoxadiamide (14-21), (26) and (27) have been prepared. these compounds were obtained in the macrocyclization step by reacting the diamine (4) with appropriak dicaxboxylic acid dichlorides (5-13) and (24). the cyclization does not require h...

Journal: :Angewandte Chemie 2022

Abstract A unique family of chiral peraza N 6 ‐macrocyclic ligands, which are conformationally rigid and have a tunable saddle‐shaped cavity, is described. Utilizing their manganese(I) complexes, the first example earth‐abundant transition metal‐catalyzed asymmetric formal anti‐Markovnikov hydroamination allylic alcohols was realized, providing practical access to synthetically important γ‐amin...

Journal: :Dalton transactions 2007
Joanna K Day Chrisopher Bresner Ian A Fallis Li-Ling Ooi David J Watkin Simon J Coles Louise Male Michael B Hursthouse Simon Aldridge

A simple, one-step synthesis of multinuclear Lewis acids can be driven with high selectivity towards either macrocyclic or polymeric arrays by appropriate choice of backbone framework.

Journal: :Chemical communications 2014
Haoliang Fu Hu Chang Jie Shen Lin Yu Bo Qin Kun Zhang Huaqiang Zeng

One-pot, multi-molecular macrocyclization allows the highly selective preparation of strained macrocyclic aromatic hexamers structurally stabilized by an inward-pointing continuous hydrogen-bonding network.

Journal: :Chemical communications 2005
Simon Dörner Bernhard Westermann

A facile and flexible approach for the preparation of macrocyclic molecules containing different carbohydrate moieties is presented, employing the reaction cascade: click-dimerization and ring-closing metathesis.

Journal: :Chemical Science 2023

Addition of metal salts to a diiridium macrocyclic complex leads the spontaneous formation supramolecular particles that react preferentially with small substrates and can tolerate glutathione additives.

Journal: :Chemical and Pharmaceutical Bulletin 1983

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