Phosphorus–nitrogen compounds part 27. Syntheses, structural characterizations, antimicrobial and cytotoxic activities, and DNA interactions of new phosphazenes bearing secondary amino and pendant (4-fluorobenzyl)spiro groups
摘要:
A number of partly (7-9) and fully (10a-12d. Scheme 1) substituted mono(4-fluorobenzyl)spiro cyclotriphosphazenes was prepared. The structures of the compounds were determined by MS, FTIR, 1D and 2D NMR techniques. The crystal structures of 9, llb and 12b were verified by X-ray diffraction analysis. In vitro cytotoxic activity of the phosphazenes (10a-12d) against HeLa cervical cancer cell lines was evaluated. Compound 12c was found to be the most effective, as it is a cytotoxic reagent that might activate apoptosis by altering mitochondrial membrane potential. Compounds 10b, lib and 12b showed very good activity against yeast strains Candida tropicalis and Candida albicans. BamHI and HindIII digestion results demonstrate that the compounds (10a-12a, 10b-12b, 10d-12d), and (9,10c-12c) bind with GIG and A/A nucleotides, respectively. (C) 2013 Elsevier Masson SAS. All rights reserved.
Phosphorus–nitrogen compounds part 27. Syntheses, structural characterizations, antimicrobial and cytotoxic activities, and DNA interactions of new phosphazenes bearing secondary amino and pendant (4-fluorobenzyl)spiro groups
摘要:
A number of partly (7-9) and fully (10a-12d. Scheme 1) substituted mono(4-fluorobenzyl)spiro cyclotriphosphazenes was prepared. The structures of the compounds were determined by MS, FTIR, 1D and 2D NMR techniques. The crystal structures of 9, llb and 12b were verified by X-ray diffraction analysis. In vitro cytotoxic activity of the phosphazenes (10a-12d) against HeLa cervical cancer cell lines was evaluated. Compound 12c was found to be the most effective, as it is a cytotoxic reagent that might activate apoptosis by altering mitochondrial membrane potential. Compounds 10b, lib and 12b showed very good activity against yeast strains Candida tropicalis and Candida albicans. BamHI and HindIII digestion results demonstrate that the compounds (10a-12a, 10b-12b, 10d-12d), and (9,10c-12c) bind with GIG and A/A nucleotides, respectively. (C) 2013 Elsevier Masson SAS. All rights reserved.
Phosphorus-Nitrogen compounds part 47: The conventional and microwave-assisted syntheses of dispirocyclotriphosphazene derivatives with (4-fluoro/4-nitrobenzyl) pendant arms: Structural and stereogenic properties and DNA interactions
作者:Güler İnci Tanrıkulu、Mehtap Yakut Özgür、Aytuğ Okumuş、Zeynel Kılıç、Tuncer Hökelek、Betül Aydın、Leyla Açık
DOI:10.1016/j.ica.2019.03.018
日期:2019.5
iphosphazene (1b) reacted with excess pyrrolidine to give fully substituted (1c) phosphazene. The structures of the new compounds were elucidated by elemental analyses, ESI-MS, FTIR, 1H, 13C, and 31P NMR techniques. The molecular and crystalstructures of 1a, 3b and 6 were identified by single crystal X-ray crystallography. The absolute configurations of 3b and 6 were unambiguously established as SS
The comparative reactions of 2‐
<i>cis</i>
‐4‐ansa and spiro cyclotetraphosphazenes with difunctional ligands: Structural and stereogenic properties, electrochemical, antimicrobial and cytotoxic activity studies
one‐electron oxidation of Fe‐redox centre. As an example, the chirality of 3c was investigated by 31P NMR spectroscopy on the addition of (R)‐(+)‐2,2,2‐trifluoro‐1‐(9′‐anthryl)‐ethanol, chiral solvating agent (CSA). The circular dichroism (CD) (for 3d and 3e), HPLC (for 3d, 3e and 3f) and X‐ray (for 3f) display that these compounds have chirality (RS′ or SR′) in the solution and solid state. This paper
Phosphorus-nitrogen compounds. Part 44. The syntheses of N,N-spiro bridged cyclotriphosphazene derivatives with (4-fluorobenzyl) pendant arms: Structural and stereogenic properties, DNA interactions, antimicrobial and cytotoxic activities
(2d, 2e, 2h and 2i). The structures of 2a and 2f are determined by X-ray crystallography. The stereogenic properties of 2a and 2f having four potential stereogenic P–centers are investigated by crystallography. The monospiro (2b–2e) and dispiro (2f–2i) products have one and two equivalent chiral centers, respectively. The dispiro derivatives may have two meso (trans-trans and cis-cis) and two racemate
Phosphorus–nitrogen compounds. Part 37. Syntheses and structural characterizations, biological activities of mono and bis(4-fluorobenzyl)spirocyclotetraphosphazenes
established by X-ray crystallography. The antibacterial activities of the compounds against G(+) and G(−) bacteria and their antifungal activities against yeast strains were scrutinized. The results indicated that 4a and 5a were the most active compounds, especially to yeast strains. In addition, it was found that the most active compound toward DNA was 8. The cytotoxic activities of the cyclotetraphosphazenes
八氯环四磷腈N 4 P 4 Cl 8与一等摩尔量的(4-氟苄基)二胺(1-3)的Cl取代反应提供了单(4-氟苄基)螺环四磷腈(4-6)作为次要产物。但是,N 4 P 4 Cl 8与两个等摩尔量的(4-氟苄基)二胺(1-3)的反应导致形成单(4-6),2-反式-6-双(7-9)作为主要产品)和2-顺-6-双(4-氟苄基)螺环四磷腈(10-12)。2-顺式使用柱色谱法分离和纯化-6-bis化合物(10和12),为次要产物,而无法分离出化合物11。使单-螺(4-6)和2-反--6-双-螺(7-9)环四磷腈与过量的吡咯烷在THF中反应,得到完全取代的六吡咯烷酮(4a-6a)和四吡咯烷酮(7a-9a)产品产量高。化合物9也与哌啶,吗啉和1,4-二氧杂-8-氮杂螺[4,5]癸烷(DASD)反应,得到四氨基产物(9b,9c和9d),由于其非常高的产量。环四磷腈的元素分析,质谱(ESI-MS),傅立叶变换红外(FTIR)光谱和1
Phosphorus–nitrogen compounds part 27. Syntheses, structural characterizations, antimicrobial and cytotoxic activities, and DNA interactions of new phosphazenes bearing secondary amino and pendant (4-fluorobenzyl)spiro groups
A number of partly (7-9) and fully (10a-12d. Scheme 1) substituted mono(4-fluorobenzyl)spiro cyclotriphosphazenes was prepared. The structures of the compounds were determined by MS, FTIR, 1D and 2D NMR techniques. The crystal structures of 9, llb and 12b were verified by X-ray diffraction analysis. In vitro cytotoxic activity of the phosphazenes (10a-12d) against HeLa cervical cancer cell lines was evaluated. Compound 12c was found to be the most effective, as it is a cytotoxic reagent that might activate apoptosis by altering mitochondrial membrane potential. Compounds 10b, lib and 12b showed very good activity against yeast strains Candida tropicalis and Candida albicans. BamHI and HindIII digestion results demonstrate that the compounds (10a-12a, 10b-12b, 10d-12d), and (9,10c-12c) bind with GIG and A/A nucleotides, respectively. (C) 2013 Elsevier Masson SAS. All rights reserved.