13C and 15N CP/MAS, 1H-15N SCT CP/MAS and FTIR spectroscopy as tools for qualitative detection of the presence of zwitterionic and non-ionic forms of ansa-macrolide 3-formylrifamycin SV and its derivatives in solid state.

artículo científico publicado en 2013

13C, 15N CP-MAS as well as FT-IR studies of gossypol derivatives with aromatic substituents in solid

13C, 15N CP-MAS, FT–IR and PM5 studies of some Schiff bases of gossypol in solid

13C, 15N NMR and CP-MAS as well as FT-IR and PM5 studies of Schiff base of gossypol with l-phenylalanine methyl ester in solution and solid

article published in 2005

14- and 15-membered lactone macrolides and their analogues and hybrids: structure, molecular mechanism of action and biological activity

scientific article published on 01 September 2019

16-Membered Macrolide Lactone Derivatives Bearing a Triazole-Functionalized Arm at the Aglycone C13 Position as Antibacterial and Anticancer Agents.

artículo científico publicado en 2016

1H NMR, FT-IR and MS studies and PM5 semiempirical calculations of complexes between the Schiff base of gossypol with 2-(aminomethyl)-15-crown-5 and Ca2+, Pb2+ and Ba2+ cations

artículo científico publicado en 2003

1H, 13C NMR, FT-IR as well as PM5 semiempirical studies of new hydrazone of gossypol with 2,2′-diethoxyethyl hydrazine

1H, 13C and 15N NMR, FT-IR as well as PM5 studies of a new Schiff base of gossypol with 3,6-dioxadecylamine in solution

article

1H- and 13C-NMR, FTIR, UV-VIS, ESI-MS, and PM5 studies as well as emission properties of a new Schiff base of gossypol with 5-methoxytryptamine and a new hydrazone of gossypol with dansylhydrazine

artículo científico publicado en 2006

A new model of binding of rifampicin and its amino analogues as zwitterions to bacterial RNA polymerase

artículo científico publicado en 2012

Antifungal activity of alkyl and heterocyclic aza-derivatives of gossypol as well as their complexes with NaClO4 against Fusarium oxysporum f. sp. lupini.

artículo científico publicado en 2009

Antifungal, anticancer, and docking studies of colchiceine complexes with monovalent metal cation salts

artículo científico publicado en 2019

Aryloxybenzylidene Ruthenium Chelates: Synthesis, Structure and Catalytic Activity in Olefin Metathesis

Biological Properties of Schiff Bases and Azo Derivatives of Phenols

CP-MAS and FT-IR spectroscopic studies of new derivatives of gossypol in solid

CP/MAS spectroscopy in the determination of the tautomeric forms of gossypol, its Schiff bases and hydrazones in the solid state

Cascade reactions as efficient and universal tools for construction and modification of 6-, 5-, 4- and 3-membered sulfur heterocycles of biological relevance

Complexes of Schiff base of gossypol with 5-hydroxy-3-oxapentylamine and Ca2+, Ba2+ or Pb2+ cations studied by NMR, FT-IR, ESI MS as well as PM5 semiempirical methods

article

Complexes of Schiff base of gossypol with 5-hydroxy-3-oxapentylamine and some monovalent cations studied by ESI MS as well as PM5 semiempirical methods

Complexes of Schiff base of gossypol with n-butylamine and some monovalent or bivalent cations studied by ESI MS, NMR, FT-IR as well as PM5 semiempirical methods

Complexes of heterocyclic aza-derivatives of phytoalexin from cotton plant-gossypol with alkali metal cations and perchlorate anion studied by ESI mass spectrometric method in the positive and negative modes

article

Complexes of monensin A methyl ester with Mg2+, Ca2+, Sr2+, Ba2+ cations studied by electrospray ionization mass spectrometry and PM5 semiempirical method

Conversion of leucomycin-A3 antibiotic into novel triazole analogues via regio- and diastereoselective SN1′ substitution with allylic rearrangement and 1,3-dipolar cycloaddition of CuAAC type

article published in 2016

Crystal structure of Schiff base derivative of 2,2′-dihydroxybiphenyl-3-carbaldehyde with n-butylamine

Crystal structure of Schiff base derivative of gossypol with 3,6,9-trioxa-decylamine

EI MS and ESI MS studies of the bisesquiterpene from cotton seeds—Gossypol and its Aza-derivatives

artículo científico publicado en 2008

ESI MS and PM5 semiempirical studies of gossypol schiff base with (R)-tetrahydrofurfurylamine complexes and monovalent cations

article published in 2004

ESI MS, NMR and PM5 semiempirical studies of oligomycin A and its complexes with Li+ and Na+ cations

ESI MS, spectroscopic and PM5 semiempirical studies of Colchicine complexes with lithium, sodium and potassium salts

ESI MS, spectroscopic and semiempirical characterization of a macrobicyclic complex with Er (III) cation

FT-IR, ESI and EPR studies of a Dy(III) Schiff base podand complex

FTIR studies of the interactions of 1,3,5-triazabicyclo[4.4.0]dec-5-ene with 4-tert-butylphenol and 4-cyanophenol

Fragmentation pathways of new aza derivatives of 16-membered macrolide antibiotic--analog of Josamycin investigated by ESI and FAB mass spectrometric methods.

artículo científico publicado en 2009

Impact of metal cation complexation and protonation on tautomeric and resonance forms of the oxaalkyl Schiff bases derived from 5-substituted salicylaldehyde and 2-hydroxy-1-naphthlaldehyde

Intramolecular proton transfer impact on antibacterial properties of ansamycin antibiotic rifampicin and its new amino analogues.

artículo científico publicado en 2012

Investigation of complex structures of a new 2-hydroxyethyl ester of Monensin A with Mg2+, Ca2+, Sr2+, Ba2+ cations using electrospray ionization mass spectrometry and semiempirical PM5 methods

Kinetic studies of complexation reaction of polyoxaalkyl phosphates with Fe(III) in ethanol

Kinetics and mechanism of the reaction between 2,3,4,5,6-pentafluorophenylacetonitrile and guanidine-like bases and the structure of the products

Lasalocid polyoxaalkyl esters complexes with Li+, Na+, K+, Rb+ and Cs+ cations studied by ESI MS and semiempirical methods

MALDI‐TOF tandem mass spectrometric analysis of novel aza‐analogues of semi‐synthetic ansamycin antibiotic ‐ rifampicin ⬇️

artículo científico publicado el 1 de agosto de 2011

Macrolides: Properties, Synthesis and Applications. By Biljana Arsic, Predrag Novak, Jill Barber, Maria Grazia Rimoli, Goran Kragol, and Federica Sodano

Mass spectrometric and PM5 study of N-(2-pyridyl)-aminomethyldiphoshonic acids and their complexes with alkali cations

Mass spectrometric and PM5 study of some piperidine-N-methyldiphosphonic acids and their complexes with alkali cations

Modifications and Biological Activity of Natural and Semisynthetic 16-Membered Macrolide Antibiotics

Molecular Structures and Stability Constants of Gossypol and Its Aza-Derivative Complexes with Silver(I) Cations Studied by Potentiometric, ESI MS, NMR, and AM1d Semiempirical Methods

scientific article published on 13 August 2008

Monensin A benzyl ester and its complexes with monovalent metal cations studied by spectroscopic, mass spectrometry and semiempirical methods

article

Monensin A methyl ester complexes with Li+, Na+, and K+ cations studied by ESI-MS, 1H- and 13C-NMR, FTIR, as well as PM5 semiempirical method

artículo científico publicado en 2006

Multinuclear NMR, FT-IR, ESI MS studies and PM5 semiempirical calculations of new ethylene glycol ester of lasalocid acid and their complexes with K+ cation

Multinuclear magnetic resonance, electrospray ionization–mass spectroscopy, and parametric method 5 studies of a new derivative of gossypol with 2-thiophenecarbohydrazide as well as its complexes with LI+, Na+, K+, RB+, and Cs+ cations

artículo científico publicado en 2006

NMR, FT-IR as well as PM5 semiempirical studies of new hydrazone of gossypol with 3-oxa-n-butylhydrazine

NMR, FT-IR, ESI MS studies and PM5 semiempirical calculations of lasalocid ethylene glycol ester complexes with Li+ and Na+ cations

NMR, FTIR, ESI-MS and semiempirical study of a new 2-(2-hydroxyethoxy)ethyl ester of monensin A and its complexes with alkali metal cations

Oligomycin A complex structures with some divalent metal cations studied by ESI MS and PM5 semiempirical methods

Potentiometric and AM1d studies of silicon and boron podands—silver (I) complexes

Potentiometric and AM1d studies of silicon and phosphorous podands-silver (I) complexes

Potentiometric and AM1d studies of silicon podands—silver(I) complexes

Reactions of fluoronitrobenzenes with MTBD strong base in acetonitrile in the presence of water molecules

Redetermination of rifampicin pentahydrate revealing a zwitterionic form of the antibiotic

Regio- and Stereoselective Functionalization of 16-Membered Lactone Aglycone of Spiramycin via Cascade Strategy.

artículo científico publicado en 2015

Regioselective long-range proton transfer in new rifamycin antibiotics: a process in which crown ethers act as stronger Brønsted bases than amines.

artículo científico publicado en 2015

Schiff Bases in Biological Systems

Schiff base of gossypol with 3,6,9-trioxa-decylamine complexes with monovalent cations studied by mass spectrometry, (1)H-NMR, FTIR, and PM5 semiempirical methods.

artículo científico publicado en 2004

Solvates of Zwitterionic Rifampicin: Recurring Packing Motifs via Nonspecific Interactions

Specific Interactions between Rifamycin Antibiotics and Water Influencing Ability To Overcome Natural Cell Barriers and the Range of Antibacterial Potency

scientific article published on 10 September 2019

Spectroscopic and PM5 semiempirical studies of new hydrazone of gossypol with 3,6-dioxaheptylhydrazine

Spectroscopic and PM5 semiempirical studies of the proton accepting properties of 1,8-bis(tetramethylguanidino)naphthalene

Spectroscopic and PM5 studies of a new Schiff base of Gossypol with 4′-aminobenzo-15-crown-5 in solution

Spectroscopic and semiempirical studies of a proton channel formed by the methyl ester of monensin A.

artículo científico publicado en 2006

Spectroscopic and semiempirical studies of gossypol complexes with Fe2+ and Fe3+ cations

Spectroscopic and semiempirical studies of new Schiff base of gossypol with allylamine in solution

Spectroscopic and theoretical studies of the protonation of N-(5-nitrosalicylidene)-ethylamine

Spectroscopic studies and PM3 semiempirical calculations of Schiff bases of gossypol with L-amino acid methyl esters

artículo científico publicado en 2002

Spectroscopic studies and PM3 semiempirical calculations of Schiff bases of gossypol withL-amino acid methyl esters

scientific article published in 2002

Spectroscopic studies and PM5 semiempirical calculations of new Schiff bases of gossypol with amino derivatives of crown ethers

Spectroscopic studies and PM5 semiempirical calculations of new Schiff bases of gossypol with polyoxaalkylamines

artículo científico publicado en 2002

Spectroscopic studies and PM5 semiempirical calculations of new hydrazone of gossypol with 3,6,9-trioxadecylhydrazine

article published in 2007

Spectroscopic studies and PM5 semiempirical calculations of tautomeric forms of gossypol schiff base with (R)-tetrahydrofurfurylamine

Spectroscopic studies of Schiff bases of 2,2′-dihydroxybiphenyl-3-carbaldehyde and para substituted anilines

Spectroscopic studies of new Schiff and Schiff–Mannich bases of ortho-derivatives of 4-bromophenol

article

Spectroscopic study and PM5 semiempirical calculations of tautomeric forms of gossypol Schiff base with n-butylamine in the solid state and in the solution

Spectroscopic, mass spectrometry and semiempirical investigation of a new Monensin A allyl ester and its complexes with Li+, Na+ and K+cations

Spectroscopic, mass spectrometry, and semiempirical investigation of a new ester of Monensin A with ethylene glycol and its complexes with monovalent metal cations

artículo científico publicado en 2006

Spectroscopic, semiempirical and X-ray structural study of the 2:1 complex of a cyclic diamide of o-phthalic acid with water molecule

Structural and semiempirical investigation of hydrazone of gossypol and its protonated species

Structure and atropisomerisation of new diastereomeric gossypol Schiff bases with (R)-(+)-2-amino-3-benzyloxy-1-propanol studied by NMR, ECD and DFT methods

Structure and electrochemical reactivity of 3-[tris(2-methoxyethoxy)silyl]-propanethiol adsorbed on silver surface

Structure and evaluation of antibacterial and antitubercular properties of new basic and heterocyclic 3-formylrifamycin SV derivatives obtained via ‘click chemistry’ approach

article

Structure elucidation, complete NMR assignment and PM5 theoretical studies of new hydroxy-aminoalkyl-alpha,beta-unsaturated derivatives of the macrolide antibiotic josamycin.

artículo científico publicado en 2010

Structure of a new Schiff base of gossypol with 1-(3-aminopropyl)-2-pyrrolidinone studied by the X-ray, FT-IR, NMR, ESI-MS and PM5 methods

Structure-activity relationship studies of new rifamycins containing l-amino acid esters as inhibitors of bacterial RNA polymerases.

artículo científico publicado en 2016

Synthesis and antibacterial activity of new N-alkylammonium and carbonate-triazole derivatives within desosamine of 14- and 15-membered lactone macrolides

artículo científico publicado en 2020

Synthesis and antimicrobial properties of monensin A esters

artículo científico publicado en 2008

Synthesis, Antibacterial, and Anticancer Evaluation of Novel Spiramycin-Like Conjugates Containing C(5) Triazole Arm.

artículo científico publicado en 2016

Synthesis, crystal structures and antibacterial activity studies of aza-derivatives of phytoalexin from cotton plant – gossypol

article

Synthesis, docking and antibacterial studies of more potent amine and hydrazone rifamycin congeners than rifampicin

scientific article published on 04 February 2019

Synthesis, structure and anticancer activity of new geldanamycin amine analogs containing C(17)- or C(20)- flexible and rigid arms as well as closed or open ansa-bridges

artículo científico publicado en 2020

Synthesis, structure and antimicrobial evaluation of a new gossypol triazole conjugates functionalized with aliphatic chains and benzyloxy groups

article

The Schiff base of gossypol with 2-(aminomethyl)-15-crown-5 complexes with monovalent cations studied by MS,1H NMR, FT-IR and PM5 semiempirical methods

article

The Schiff base of gossypol with 2-(aminomethyl)-18-crown-6 complexes and H+, Li+, Na+, K+, Rb+, Cs+ cations studied by ESI MS, 1H NMR, FT-IR and PM5 semiempirical methods

The complexes between Schiff base of gossypol with l-phenylalanine methyl ester and some monovalent cations studied by 1H NMR, ESI MS, FT-IR as well as PM5 semi-empirical methods

article published in 2003

The effect of complexation of 3-formylrifamycin SV macrocyclic ether derivatives with metal cations and small nitrogen-containing organic molecules on antibacterial activity against S. aureus and S. epidermidis

scientific article published on 22 July 2015

The influence of protonation on molecular structure and physico-chemical properties of gossypol Schiff bases

artículo científico publicado en 2010

The mechanism of activation of amidobenzylidene ruthenium chelates - latent catalysts of olefin metathesis

artículo científico publicado en 2017

The reaction heats and PM5 semiempirical studies of complexes formed between silicon podand and Li+ cations

The reaction heats and PM5 semiempirical studies of complexes formed between silicon podand and monovalent cations

The schiff base of gossypol with 3,6,9,12,15,18,21,24-octaoxa-pentacosylamine complexes and monovalent cations studied by electrospray ionization-mass spectrometry, (1)H nuclear magnetic resonance, Fourier transform infrared, as well as PM5 semiempi

artículo científico publicado en 2004

The structures of monensin A derivatives and its complexes with some monovalent cations studied by the AM1d, PM3 as well as PM5 semiempirical methods

The synthesis and structural studies of a new Kemp’s triacid oxaalkyl ester and its complexes with Li+, Na+ and K+ cations

Toward Designing “Sweet” Ionic Liquids Containing a Natural Terpene Moiety as Effective Wood Preservatives

Transformation of josamycin in alkaline solution—intramolecular SN2 substitution or E1cB elimination and intramolecular Michael addition?

article

Unexpected α,β-unsaturated products of reductive amination of the macrolide antibiotic josamycin

X-ray, FT-IR, ESI MS and PM5 studies of Schiff base of gossypol with allylamine and its complexes with alkali metal cations and perchlorate anion

X-ray, spectroscopic and computational studies of the tautomeric structure of a new hydrazone of 5-nitrosalicylaldehyde with indole-3-acetic hydrazide