Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective Review

Although organic compounds account for more than 99% of currently approved clinical drugs, the established clinical use of cisplatin in cancer or auranofin in rheumatoid arthritis have paved the way to several research initiatives to identify metal-based drugs for a wide range of human diseases. Nit...

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Main Authors: Carmela Bonaccorso, Tiziano Marzo, Diego La Mendola
Format: Article
Language:English
Published: MDPI AG 2019-12-01
Series:Pharmaceuticals
Subjects:
Online Access:https://www.mdpi.com/1424-8247/13/1/4
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author Carmela Bonaccorso
Tiziano Marzo
Diego La Mendola
author_facet Carmela Bonaccorso
Tiziano Marzo
Diego La Mendola
author_sort Carmela Bonaccorso
collection DOAJ
description Although organic compounds account for more than 99% of currently approved clinical drugs, the established clinical use of cisplatin in cancer or auranofin in rheumatoid arthritis have paved the way to several research initiatives to identify metal-based drugs for a wide range of human diseases. Nitrogen and sulfur donor ligands, characterized by different binding motifs, have been the subject in recent years of one of the main research areas in coordination chemistry. Among the nitrogen/sulfur compounds, very little is known about thiocarbohydrazones (TCH), the higher homologues of the well-known thiosemicarbazones (TSC), and their metal complexes. The extra hydrazine moiety provides the ligands of variable metal binding modes, structural diversity and promising biological implications. The interesting coordination chemistry of TCH has mainly been focused on symmetric derivatives, which are relatively simple to synthesize while few examples of asymmetric ligands have been reported. This informative review on TCHs and their metal complexes will be helpful for improving the design of metal-based pharmaceuticals for applications ranging from anticancer to antinfective therapy.
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spelling doaj.art-0e9b10779ea345ecb3934e8b022efe412022-12-21T20:02:33ZengMDPI AGPharmaceuticals1424-82472019-12-01131410.3390/ph13010004ph13010004Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective ReviewCarmela Bonaccorso0Tiziano Marzo1Diego La Mendola2Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, ItalyDipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 6, 56126 Pisa, ItalyDipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 6, 56126 Pisa, ItalyAlthough organic compounds account for more than 99% of currently approved clinical drugs, the established clinical use of cisplatin in cancer or auranofin in rheumatoid arthritis have paved the way to several research initiatives to identify metal-based drugs for a wide range of human diseases. Nitrogen and sulfur donor ligands, characterized by different binding motifs, have been the subject in recent years of one of the main research areas in coordination chemistry. Among the nitrogen/sulfur compounds, very little is known about thiocarbohydrazones (TCH), the higher homologues of the well-known thiosemicarbazones (TSC), and their metal complexes. The extra hydrazine moiety provides the ligands of variable metal binding modes, structural diversity and promising biological implications. The interesting coordination chemistry of TCH has mainly been focused on symmetric derivatives, which are relatively simple to synthesize while few examples of asymmetric ligands have been reported. This informative review on TCHs and their metal complexes will be helpful for improving the design of metal-based pharmaceuticals for applications ranging from anticancer to antinfective therapy.https://www.mdpi.com/1424-8247/13/1/4thiocarbohydrazonesmetallodrugsanticancerantimicrobialmetal ions
spellingShingle Carmela Bonaccorso
Tiziano Marzo
Diego La Mendola
Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective Review
Pharmaceuticals
thiocarbohydrazones
metallodrugs
anticancer
antimicrobial
metal ions
title Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective Review
title_full Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective Review
title_fullStr Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective Review
title_full_unstemmed Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective Review
title_short Biological Applications of Thiocarbohydrazones and Their Metal Complexes: A Perspective Review
title_sort biological applications of thiocarbohydrazones and their metal complexes a perspective review
topic thiocarbohydrazones
metallodrugs
anticancer
antimicrobial
metal ions
url https://www.mdpi.com/1424-8247/13/1/4
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