Phosphorus–nitrogen compounds: part 75—design, synthesis, stereogenic and conformational properties of chiral dispiro(N/N)cyclotriphosphazenes: structural analysis and photophysical and bioactivity studies

Multiheterocyclic inorganic–organic hybrid phosphazenes have robust inorganic ring systems with the stabilities of the phosphorus nitrogen skeleton and many different substituents bonded to the P atoms. In present study, unsymmetrical dispirocyclotriphosphazenes were prepared due to their potential...

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Veröffentlicht in:Research on chemical intermediates 2024, Vol.50 (6), p.2603-2628
Hauptverfasser: Cemaloğlu, Reşit, Asmafiliz, Nuran, Kılıç, Zeynel, Topaloğlu Aksoy, Burcu, Sabah, Büşra Nur, Açık, Leyla, Hökelek, Tuncer
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container_title Research on chemical intermediates
container_volume 50
creator Cemaloğlu, Reşit
Asmafiliz, Nuran
Kılıç, Zeynel
Topaloğlu Aksoy, Burcu
Sabah, Büşra Nur
Açık, Leyla
Hökelek, Tuncer
description Multiheterocyclic inorganic–organic hybrid phosphazenes have robust inorganic ring systems with the stabilities of the phosphorus nitrogen skeleton and many different substituents bonded to the P atoms. In present study, unsymmetrical dispirocyclotriphosphazenes were prepared due to their potential to depict steric hindrance and electronic rearrangement in creating permanent chirality for certain conformational and configurational isomers. These isomers may have an effect on DNA bindings and activitiy against selected fungi and bacteria, remarkably. Herein, tetrachlorocyclotriphosphazenes ( 1 and 2 ) were reacted with 9-ethyl-N-methyl-3-carbazolyl-1,2-diaminoethane ( 3 ), 9-ethyl-N-ethyl-3-carbazolyl-1,2-diaminoethane ( 4 ) and 9-ethyl-N-methyl-3-carbazolyl-1,3-diaminopropane ( 5 ) to give the new unsymmetrical cis/trans-dispirocyclotriphosphazenes, [(ClBz/BzSpiro-6)R 1 (N 3 P 3 )(CzSpiro-n)R 2 ]Cl 2 (Cz: Carbazolyl; R 1 :Me R 2 :Me or Et; n = 5 or 6; trans 6a – 11a and cis 6b – 11b ). Characterizations, chiralities, and photophysical and biological properties of the new compounds were examined. The molecular and crystal structures of cis- 6b , cis- 7b , trans- 9a , cis- 9b , trans- 10a and cis- 10b were determined by single crystal X-ray crystallography. The chiralities of these compounds with unsymmetrical spiro-architectures were confirmed by X-ray crystallography. These results were further proven by 31 P NMR data recorded with the addition of a chiral solvent (CSA). Additionally, circular dichroism (CD) spectra also supported the results. Photophysical measurements indicate that these compounds show emission with lifetimes of approximately 5.6–5.9 ns. In addition, the bioactivities of some isomers were found to be different and quite high against some bacterial and yeast strains. Trans- 8a was very active against B. cereus (MBC = 78.1 µM), while cis- 6b , trans- 9a and cis- 9b were very active against the pathogenic yeast C. albicans (MFC = 156.3 µM). Graphical abstract
doi_str_mv 10.1007/s11164-024-05285-7
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In present study, unsymmetrical dispirocyclotriphosphazenes were prepared due to their potential to depict steric hindrance and electronic rearrangement in creating permanent chirality for certain conformational and configurational isomers. These isomers may have an effect on DNA bindings and activitiy against selected fungi and bacteria, remarkably. Herein, tetrachlorocyclotriphosphazenes ( 1 and 2 ) were reacted with 9-ethyl-N-methyl-3-carbazolyl-1,2-diaminoethane ( 3 ), 9-ethyl-N-ethyl-3-carbazolyl-1,2-diaminoethane ( 4 ) and 9-ethyl-N-methyl-3-carbazolyl-1,3-diaminopropane ( 5 ) to give the new unsymmetrical cis/trans-dispirocyclotriphosphazenes, [(ClBz/BzSpiro-6)R 1 (N 3 P 3 )(CzSpiro-n)R 2 ]Cl 2 (Cz: Carbazolyl; R 1 :Me R 2 :Me or Et; n = 5 or 6; trans 6a – 11a and cis 6b – 11b ). Characterizations, chiralities, and photophysical and biological properties of the new compounds were examined. The molecular and crystal structures of cis- 6b , cis- 7b , trans- 9a , cis- 9b , trans- 10a and cis- 10b were determined by single crystal X-ray crystallography. The chiralities of these compounds with unsymmetrical spiro-architectures were confirmed by X-ray crystallography. These results were further proven by 31 P NMR data recorded with the addition of a chiral solvent (CSA). Additionally, circular dichroism (CD) spectra also supported the results. Photophysical measurements indicate that these compounds show emission with lifetimes of approximately 5.6–5.9 ns. In addition, the bioactivities of some isomers were found to be different and quite high against some bacterial and yeast strains. Trans- 8a was very active against B. cereus (MBC = 78.1 µM), while cis- 6b , trans- 9a and cis- 9b were very active against the pathogenic yeast C. albicans (MFC = 156.3 µM). 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In present study, unsymmetrical dispirocyclotriphosphazenes were prepared due to their potential to depict steric hindrance and electronic rearrangement in creating permanent chirality for certain conformational and configurational isomers. These isomers may have an effect on DNA bindings and activitiy against selected fungi and bacteria, remarkably. Herein, tetrachlorocyclotriphosphazenes ( 1 and 2 ) were reacted with 9-ethyl-N-methyl-3-carbazolyl-1,2-diaminoethane ( 3 ), 9-ethyl-N-ethyl-3-carbazolyl-1,2-diaminoethane ( 4 ) and 9-ethyl-N-methyl-3-carbazolyl-1,3-diaminopropane ( 5 ) to give the new unsymmetrical cis/trans-dispirocyclotriphosphazenes, [(ClBz/BzSpiro-6)R 1 (N 3 P 3 )(CzSpiro-n)R 2 ]Cl 2 (Cz: Carbazolyl; R 1 :Me R 2 :Me or Et; n = 5 or 6; trans 6a – 11a and cis 6b – 11b ). Characterizations, chiralities, and photophysical and biological properties of the new compounds were examined. The molecular and crystal structures of cis- 6b , cis- 7b , trans- 9a , cis- 9b , trans- 10a and cis- 10b were determined by single crystal X-ray crystallography. The chiralities of these compounds with unsymmetrical spiro-architectures were confirmed by X-ray crystallography. These results were further proven by 31 P NMR data recorded with the addition of a chiral solvent (CSA). Additionally, circular dichroism (CD) spectra also supported the results. Photophysical measurements indicate that these compounds show emission with lifetimes of approximately 5.6–5.9 ns. In addition, the bioactivities of some isomers were found to be different and quite high against some bacterial and yeast strains. Trans- 8a was very active against B. cereus (MBC = 78.1 µM), while cis- 6b , trans- 9a and cis- 9b were very active against the pathogenic yeast C. albicans (MFC = 156.3 µM). 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In present study, unsymmetrical dispirocyclotriphosphazenes were prepared due to their potential to depict steric hindrance and electronic rearrangement in creating permanent chirality for certain conformational and configurational isomers. These isomers may have an effect on DNA bindings and activitiy against selected fungi and bacteria, remarkably. Herein, tetrachlorocyclotriphosphazenes ( 1 and 2 ) were reacted with 9-ethyl-N-methyl-3-carbazolyl-1,2-diaminoethane ( 3 ), 9-ethyl-N-ethyl-3-carbazolyl-1,2-diaminoethane ( 4 ) and 9-ethyl-N-methyl-3-carbazolyl-1,3-diaminopropane ( 5 ) to give the new unsymmetrical cis/trans-dispirocyclotriphosphazenes, [(ClBz/BzSpiro-6)R 1 (N 3 P 3 )(CzSpiro-n)R 2 ]Cl 2 (Cz: Carbazolyl; R 1 :Me R 2 :Me or Et; n = 5 or 6; trans 6a – 11a and cis 6b – 11b ). Characterizations, chiralities, and photophysical and biological properties of the new compounds were examined. The molecular and crystal structures of cis- 6b , cis- 7b , trans- 9a , cis- 9b , trans- 10a and cis- 10b were determined by single crystal X-ray crystallography. The chiralities of these compounds with unsymmetrical spiro-architectures were confirmed by X-ray crystallography. These results were further proven by 31 P NMR data recorded with the addition of a chiral solvent (CSA). Additionally, circular dichroism (CD) spectra also supported the results. Photophysical measurements indicate that these compounds show emission with lifetimes of approximately 5.6–5.9 ns. In addition, the bioactivities of some isomers were found to be different and quite high against some bacterial and yeast strains. Trans- 8a was very active against B. cereus (MBC = 78.1 µM), while cis- 6b , trans- 9a and cis- 9b were very active against the pathogenic yeast C. albicans (MFC = 156.3 µM). 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subjects Atomic properties
Bacteria
Biological activity
Biological properties
Catalysis
Chemistry
Chemistry and Materials Science
Chirality
Crystallography
Dichroism
Inorganic Chemistry
Isomers
Nitrogen compounds
NMR
Nuclear magnetic resonance
Phosphorus
Physical Chemistry
Single crystals
Steric hindrance
Structural analysis
Yeast
title Phosphorus–nitrogen compounds: part 75—design, synthesis, stereogenic and conformational properties of chiral dispiro(N/N)cyclotriphosphazenes: structural analysis and photophysical and bioactivity studies
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