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Li R, Li S, Xia T, Ji C, Gu N, Li L, Zhangc Z. A Practical Synthesis of Macrocyclic Schiff Base Bearing Hydroxyethyl Pendants Utilizing Solubility Discrepancies. LETT ORG CHEM 2021. [DOI: 10.2174/1570178619666211230124256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Six macrocyclic Schiff bases bearing hydroxyethyl pendants have been synthesized in high yields via [2 + 2] condensation between the rigid dialdehydes and 2-[bis(2-aminoethyl)amino]ethanol or 1-[bis(2-aminoethyl)amino]-2-propanol at 0 oC for 12 hours in the CH3CN/H2O mixture. Solubility discrepancies between macrocyclic products and raw materials in selected solvents enable a facile separation and high yields, avoiding any intractable chromatographic purification. This straightforward synthetic protocol provides a relatively facile resolution with potential widespread applications for the synthesis of Schiff bases.
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Affiliation(s)
- Runlai Li
- College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Shu'an Li
- School of Chemical Engineering, Jiangsu Ocean University, Lianyungang, China
| | - Tian Xia
- School of Chemical Engineering, Jiangsu Ocean University, Lianyungang, China
| | - Chunwei Ji
- School of Chemical Engineering, Jiangsu Ocean University, Lianyungang, China
| | - Na Gu
- School of Chemical Engineering, Jiangsu Ocean University, Lianyungang, China
| | - Linzhe Li
- School of Chemical Engineering, Jiangsu Ocean University, Lianyungang, China
| | - Zhenming Zhangc
- School of Chemical Engineering, Jiangsu Ocean University, Lianyungang, China
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4
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Beltran-Torres M, Sugich-Miranda R, Santacruz-Ortega H, Machi L, Inoue M, Velázquez-Contreras EF, Soberanes Y, Höpfl H, Pérez-González R, Navarro RE, Salazar-Medina AJ, Sotelo Mundo RR. Comparative Studies of Structures and Peroxidase-like Activities of Copper(II) and Iron(III) Complexes with an EDTA-Based Phenylene-Macrocycle and Its Acyclic Analogue. ACS OMEGA 2019; 4:22487-22496. [PMID: 31909331 PMCID: PMC6941385 DOI: 10.1021/acsomega.9b03164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/21/2019] [Indexed: 06/10/2023]
Abstract
With the objective of studying the conformational and macrocyclic effects of selected metal chelates on their peroxidase activities, Cu2+ and Fe3+ complexes were synthesized with a macrocyclic derivative of ethylenediaminetetraacetic acid and o-phenylenediamine (abbreviated as edtaodH2) and its new open-chain analogue (edtabzH2). The Fe3+ complex of edtaodH2 has a peroxidase-like activity, whereas the complex of edtabzH2 does not. The X-ray study of the former shows the formation of a dimeric molecule {[Fe(edtaod)]2O} in which each metal with an octahedral coordination is overposed over the macrocyclic cavity, as a result of rigid macrocyclic frame, to form an Fe-O-Fe bridge; the exposure of the central metal to the environment facilitates the capture of oxygen to drive the biomimetic activity. The peroxidase-inactive Fe3+ complex consists of a mononuclear complex ion [Fe(edtabz)(H2O)]+, the metal ion of which is suited in a distorted pentagonal bipyramid to be protected from environmental oxygen. The copper(II) complexes, which have mononuclear structures with high thermodynamic stability compared with the iron(III) complexes, show no peroxidase activity. The steric effects play a fundamental role in the biomimetic activity.
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Affiliation(s)
- Melissa Beltran-Torres
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Rocío Sugich-Miranda
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Hisila Santacruz-Ortega
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Lorena Machi
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Motomichi Inoue
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Enrique F. Velázquez-Contreras
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Yedith Soberanes
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
- Centro de Investigación en Alimentación
y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazarán Rosas Num. 46 Col. La
Victoria, Hermosillo, Sonora 83304, Mexico
| | - Herbert Höpfl
- Centro de Investigaciones Químicas, Instituto de Investigación
en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62209, Mexico
| | - Refugio Pérez-González
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Rosa Elena Navarro
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Alex J. Salazar-Medina
- Departamento
de Investigación en Polímeros y Materiales and Departamento
de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo, Sonora 83000, Mexico
| | - Rogerio R. Sotelo Mundo
- Centro de Investigación en Alimentación
y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazarán Rosas Num. 46 Col. La
Victoria, Hermosillo, Sonora 83304, Mexico
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5
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Mandal NK, Guhathakurta B, Basu P, Pradhan AB, Purohit CS, Chowdhury S, Naskar JP. DNA and RNA binding studies on a novel bromo-bridged dimeric copper(II) complex stabilized from a Schiff base ligand. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1704276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Naba Kr Mandal
- Department of Chemistry, Jadavpur University, Kolkata, India
| | | | - Pritha Basu
- Department of Chemistry, Sunderwati Mahila College, Bhagalpur, Bihar, India
| | | | - Chandra Shekhar Purohit
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, India
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6
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Massoud SS, Louka FR, Tusa AF, Bordelon NE, Fischer RC, Mautner FA, Vančo J, Hošek J, Dvořák Z, Trávníček Z. Copper(ii) complexes based on tripodal pyridyl amine derivatives as efficient anticancer agents. NEW J CHEM 2019. [DOI: 10.1039/c9nj00061e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The in vitro cytotoxicity of a series of chlorido-Cu(ii) complexes based on tripod pyridyl N4-donor derivatives revealed significant-to-moderate cytotoxicity against human cancer cell lines with the best results obtained for [Cu(BQPA)Cl]ClO4/PF6 (5-ClO4/PF6) with IC50 values of 4.7–10.8 μM.
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Affiliation(s)
- Salah S. Massoud
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
| | - Febee R. Louka
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
| | - Ada F. Tusa
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
| | | | - Roland C. Fischer
- Institut für Anorganische Chemische
- Technische Universität Graz
- A-8010 Graz
- Austria
| | - Franz A. Mautner
- Institut für Physikalische and Theoretische Chemie
- Technische Universität Graz
- Graz
- Austria
| | - Ján Vančo
- Division of Biologically Active Complexes and Molecular Magnets
- Regional Centre of Advanced Technologies and Materials
- Faculty of Science
- Palacký University
- CZ-783 71 Olomouc
| | - Jan Hošek
- Division of Biologically Active Complexes and Molecular Magnets
- Regional Centre of Advanced Technologies and Materials
- Faculty of Science
- Palacký University
- CZ-783 71 Olomouc
| | - Zdeněk Dvořák
- Division of Biologically Active Complexes and Molecular Magnets
- Regional Centre of Advanced Technologies and Materials
- Faculty of Science
- Palacký University
- CZ-783 71 Olomouc
| | - Zdeněk Trávníček
- Division of Biologically Active Complexes and Molecular Magnets
- Regional Centre of Advanced Technologies and Materials
- Faculty of Science
- Palacký University
- CZ-783 71 Olomouc
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