N. Vassilev

发表

Atropisomerism of 2,2′‐Diaryl‐1,1′‐binaphthalenes Containing Three Stereogenic Axes: Experimental and Computational Study

Marcel Ehn, N. Vassilev, L. Pašteka, 2015 .

Acid catalyzed intramolecular attack of β‐phenylthioureido group on amide function. Parallel formation of thiodihydrouracil and 4‐iminothiodihydrouracil. Different pathways in the Edman degradation reaction in the formation of six‐ versus five‐membered cyclic intermediates

N. Vassilev, I. Pojarlieff, I. Blagoeva, 2008 .

Synthesis of 4-Aminocoumarin Derivatives with N-Substitutents Containing Hydroxy or Amino Groups

N. Vassilev, I. Tiritiris, V. Angelova, 2013 .

Synthesis, antimycobacterial activity and docking study of 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives and related hydrazide-hydrazones.

N. Vassilev, T. Pencheva, B. Shivachev, 2017, Bioorganic & medicinal chemistry letters.

Cytisine as a scaffold for ortho-diphenylphosphinobenzenecarboxamide ligands for Pd-catalyzed asymmetric allylic alkylation

N. Vassilev, R. Nikolova, B. Shivachev, 2015 .

An 1H NMR- and MS-Based Study of Metabolites Profiling of Garden Snail Helix aspersa Mucus

N. Vassilev, M. Dangalov, S. Simova, 2020, Metabolites.

Ab initio SCF study of the barrier to internal rotation in simple amides. Part 3. Thioamides

N. Vassilev, V. Dimitrov, 2003 .

Antiproliferative and antioxidative effects of novel hydrazone derivatives bearing coumarin and chromene moiety

L. Saso, N. Vassilev, V. Angelova, 2016, Medicinal Chemistry Research.

Dynamic NMR: combined use of 1D selective EXSY and complete lineshape analysis of spectra subjected to reference deconvolution and linear prediction or the maximum entropy method

N. Vassilev, V. Dimitrov, V. S. Dimitrov, 2001 .

Ab initio study of the barrier to internal rotation in simple amides. Part 2. N,N-dimethylacetamide and N,N-dimethyl-2-(mono-, di- and tri-) halogenacetamides

N. Vassilev, V. Dimitrov, 2000 .

AB INITIO STUDY OF THE BARRIER TO INTERNAL ROTATION IN SIMPLE AMIDES 1. N,N-DIMETHYLFORMAMIDE AND N, N-DIMETHYLCARBAMIC HALOGENIDES

N. Vassilev, V. Dimitrov, 1999 .

Synthesis of New Galanthamine-Peptide Derivatives Designed for Prevention and Treatment of Alzheimer's Disease.

N. Vassilev, R. Mihaylova, D. Tsekova, 2019, Current Alzheimer research.

A single isomer rotary switch demonstrating anti-Kasha behaviour: Does acidity function matter?

A. Georgiev, N. Vassilev, L. Antonov, 2021, Physical chemistry chemical physics : PCCP.

OH Group Effect in the Stator of β-Diketones Arylhydrazone Rotary Switches

F. S. Kamounah, K. Fromm, N. Vassilev, 2020, Chemistry.

New indole and indazole derivatives as potential antimycobacterial agents

N. Vassilev, T. Pencheva, Rumyana Simeonova, 2019, Medicinal Chemistry Research.

Antimycobacterial activity of novel hydrazide-hydrazone derivatives with 2H-chromene and coumarin scaffold.

I. Dimitrov, L. Saso, N. Vassilev, 2017, Bioorganic & medicinal chemistry letters.

Linear free energy relationships of the gem-dimethyl (gem-dialkyl) effect

N. Vassilev, I. Pojarlieff, I. Blagoeva, 2008 .

σi Values for 3-arylureido groups. Transmission of inductive effects by the ureido group

N. Vassilev, I. Pojarlieff, I. Blagoeva, 2005 .

Development of New Antimycobacterial Sulfonyl Hydrazones and 4-Methyl-1,2,3-thiadiazole-Based Hydrazone Derivatives

N. Vassilev, T. Pencheva, V. Angelova, 2022, Antibiotics.

trans-Dichloro(η 2-ethylene) (N-3-pyridinylmethanesulfonamide)platinum(II). Crystal structure, spectroscopic, and thermoanalytical characterization, and cytotoxicity assays

M. Apostolova, N. Vassilev, M. Gdaniec, 2012 .

Favipiravir—Tautomeric and Complexation Properties in Solution

N. Vassilev, Sofia O. Slavova, V. Deneva, 2022, Pharmaceuticals.

Synthesis and biological study of new galanthamine-peptide derivatives designed for prevention and treatment of Alzheimer’s disease

N. Vassilev, A. Atanasov, V. Lozanov, 2022, Amino Acids.

Effect of gamma-ray irradiation on the fatty acid profile of irradiated beef meat.

N. Vassilev, S. Toshkov, I. Marekov, 2011, Food chemistry.

Thiol–ene coupling reaction achievement and monitoring by “in situ” UV irradiation NMR spectroscopy

N. Vassilev, M. Dangalov, C. Novakov, 2020, RSC advances.

Synthesis and structure elucidation of allyl Pd(II) complexes of NHC ligands derived from substituted imidazo[1,5-a]quinolin-1(2H)-ylidene

N. Vassilev, M. Dangalov, R. Lyapchev, 2017 .

Fluxional Pd(II) NHC complexes – Synthesis, structure elucidation and catalytic studies

N. Vassilev, M. Dangalov, M. Putala, 2016 .

Synthesis, antitrichinnellosis and antiprotozoal activity of some novel thieno[2,3-d]pyrimidin-4(3H)-ones containing benzimidazole ring.

N. Vassilev, A. Mavrova, K. Anichina, 2010, European journal of medicinal chemistry.

REACTION OF THE LITHIUM DERIVATIVE OF DIETHYL 2-(OR 3-)METHYLPHENYLMETHANEPHOSPHONATE WITH KETONES. AN EXAMPLE OF HIGH SYN-STEREOSELECTIVITY

N. Vassilev, J. Petrova, M. Kirilov, 1993 .

Neuroprotective evaluation of novel substituted 1,3,4-oxadiazole and aroylhydrazone derivatives.

N. Vassilev, V. Angelova, M. Kondeva-Burdina, 2021, Bioorganic & medicinal chemistry letters.

Dynamic NMR: A new procedure for the estimation of mixing times in the 2D EXSY experiments. A four‐site exchange system studied by 1D and 2D EXSY spectroscopy

N. Vassilev, V. S. Dimitrov, 1995 .

Synthesis, characterization and cytotoxicity of some novel 1,3-disubstituted-2,3-dihydro-2-iminobenzimidazoles.

N. Vassilev, A. Mavrova, D. Wesselinova, 2011, European journal of medicinal chemistry.

Synthesis, Antitrichinnellosis and Antiprotozoal Activity of Some Novel Thieno[2,3‐d]pyrimidin‐4(3H)‐ones Containing Benzimidazole Ring.

N. Vassilev, A. Mavrova, K. Anichina, 2011 .

Synthesis and anticancer activity of Pt(II) complexes of spiro-5-substituted 2,4-dithiohydantoins

N. Vassilev, A. Ahmedova, K. Paradowska, 2021, Inorganica Chimica Acta.

Chiral amine-induced stereoselectivity in trans-β-lactam formation via Staudinger cycloaddition

N. Vassilev, V. Kurteva, R. Bontchev, 2009 .

Stereochemically non-rigid transition metal complexes of 2,6-bis[(1-phenylimino)ethyl]pyridine (BIP) Part 2. Dynamic NMR studies of fac-[ReX(CO)3(BIP)] (X = Cl, Br, or I). Crystal structure of fac-[ReBr(CO)3(BIP)]

A. G. Osborne, D. Hibbs, M. Hursthouse, 1997 .

Ribozymomimetic Chemical Synthesis of Peptide Bond Using Phosphorous Acid/Oxirane Mediators

N. Vassilev, S. Bayryamov, D. Danalev, 2011 .

STEREOSELECTIVITY OF THE WITTIG-HORNER REACTION WITH BENZYLPHOSPHONATE CARBANIONS AND ALDEHYDES

N. Vassilev, J. Petrova, S. Momchilova, 1992 .

Restricted rotation of the phenyl group in β‐hydroxyphosphonates: Dynamic NMR and semiempirical studies

N. Vassilev, V. S. Dimitrov, 1994 .

Complexation of trivalent lanthanoid ions with 4-benzoyl-3-phenyl-5-isoxazolone and p-tert-butylcalix[4]arene fitted with phosphinoyl pendant arms in solution during synergistic solvent extraction and structural study of solid complexes by IR and NMR

S. Varbanov, N. Vassilev, M. Atanassova, 2010 .

Effect of p-tert-Butylcalix[4]arene Fitted with Phosphinoyl Pendant Arms as Synergistic Agent in the Solvent Extraction and Separation of Some Trivalent Lanthanoids with 4-Benzoyl-3-methyl-1-phenyl-5-pyrazolone

S. Varbanov, N. Vassilev, M. Atanassova, 2007 .

Coordination chemistry of a para-tert-octylcalix[4]arene fitted with phosphinoyl pendant arms towards 4f-elements: Extraction, synergism, separation

S. Varbanov, E. Tashev, N. Vassilev, 2016 .

p-tert-Butylcalix[4]arene tetrakis(N,N-dimethylacetamide) as a second ligand in the complexation of trivalent lanthanoids with thenoyltrifluoroacetone in solution and investigation of a solid Eu(III) complex

N. Vassilev, M. Atanassova, I. Dukov, 2011 .

Effect of p-tert-butylcalix[4]arene fitted with phosphinoyl pendant arms as synergistic agent in the solvent extraction of trivalent lanthanoids with 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione and structural study of solid complexes by IR, NMR and X-ray

S. Varbanov, N. Vassilev, M. Atanassova, 2008 .

Hexa(1,1,3,3-tetramethyl-butyl)-hexakis(dimethylphosphinoyl-methoxy)-calix[6]arene: Synthesis, characterization and implementation as a synergistic agent in the solvent extraction of lanthanoids

S. Varbanov, E. Tashev, N. Vassilev, 2017 .

Effect of Diluents on The Synergistic Solvent Extraction and Separation of Trivalent Lanthanoids With 4-Benzoyl-3-Phenyl-5-Isoxazolone and tert-Butylcalix[4]Arene Tetrakis(N,N-Dimethyl Acetamide) and Structural Study of Gd(III) Solid Complex By IR and NMR

S. Varbanov, N. Vassilev, M. Petrova, 2010 .

Fluxional allyl Pd(II) and Pt(II) complexes of NHC ligands derived from substituted 1,8-naphthalimides - Synthesis and structure elucidation

N. Vassilev, M. Dangalov, P. Petrov, 2016 .

New indole and indazole derivatives as potential antimycobacterial agents

N. Vassilev, T. Pencheva, Rumyana Simeonova, 2019, Medicinal Chemistry Research.

Synthesis, in vitro antiproliferative and antimycobacterial activity of thiazolidine-2,4- dione and hydantoin derivatives

N. Vassilev, V. Angelova, V. Valcheva, 2017 .

7-OH quinoline Schiff bases: are they the long awaited tautomeric bistable switches?

F. S. Kamounah, K. Fromm, A. Georgiev, 2021 .

METAL(I) AND METAL(II) DERIVATIVES OF DIETHYL (2-OXO-1-PHENYL) ETHYLPHOSPHONATE: SYNTHESIS, STRUCTURE AND REACTIVITY

N. Vassilev, E. Haupt, J. Petrova, 1998 .

4-OH coumarin based rotary switches: Tautomeric state and effect of the stator

A. Georgiev, N. Vassilev, L. Antonov, 2021 .

Galantamine derivatives: Synthesis, NMR study, DFT calculations and application in asymmetric catalysis

N. Vassilev, G. Stavrakov, I. Philipova, 2020 .

Structure and Conformational Mobility of OLED-Relevant 1,3,5-Triazine Derivatives

G. Dobrikov, N. Vassilev, M. Dangalov, 2023, Molecules.

Novel Arylsulfonylhydrazones as Breast Anticancer Agents Discovered by Quantitative Structure-Activity Relationships

I. Doytchinova, N. Vassilev, Z. Zhivkova, 2023, Molecules.

Design, synthesis and antiproliferative properties of some new 5-substituted-2-iminobenzimidazole derivatives.

N. Vassilev, A. Mavrova, D. Wesselinova, 2013, European journal of medicinal chemistry.

Investigation of the dynamic stereochemistry of dimesityl‐2,4,6‐trimethoxyphenylmethane by complete lineshape analysis and 2D EXSY NMR spectroscopy

N. Vassilev, P. Denkova, R. Willem,, 2008, Magnetic resonance in chemistry : MRC.

Chercher de l'eau: The switching mechanism of the rotary switch ethyl-2-(2-(quinolin-8-yl)hydrazono)-2-(pyridin-2-yl)acetate

S. Kawauchi, N. Vassilev, L. Antonov, 2020 .

In vitro and in silico evaluation of chromene based aroyl hydrazones as anticonvulsant agents

P. Andreeva-Gateva, N. Vassilev, S. Surcheva, 2017, Medicinal Chemistry Research.

Change of the Hydrolytic Mechanism of 2-Hydroxy H-Phosphonodiesters in Aprotic Organic Media. cis-1,2-Diol Monoanions as Leaving Groups

N. Vassilev, S. Tzokov, D. Petkov, 1999 .

H-TETRAOXASPIROPHOSPHORANES AS POSSIBLE INTERMEDIATES IN THE PHOSPHONYLATION BY PHOSPHOROUS ACID/OXIRANES

N. Vassilev, S. Tzokov, J. Kaneti, 2000 .

Change of the Hydrolytic Mechanism of 2‐Hydroxy H‐Phosphonodiesters in Aprotic Organic Media. cis‐1,2‐Diol Monoanions as Leaving Groups.

N. Vassilev, S. Tzokov, D. Petkov, 1999 .

Cytisine as a Scaffold for ortho-Diphenylphosphinobenzenecarboxamide Ligands for Pd-Catalyzed Asymmetric Allylic Alkylation.

N. Vassilev, R. Nikolova, B. Shivachev, 2015 .

Experimental and theoretical conformational studies of hydrazine derivatives bearing a chromene scaffold

N. Vassilev, V. Angelova, N. Markova, 2019 .

N-heterocyclic bis-carbene palladium complexes derived from functionalized naphthalimides – Synthesis, Structure elucidation and DFT study

N. Vassilev, M. Dangalov, P. Petrov, 2021 .

Stereostructure and thermodynamic stability of atropisomers of ortho-substituted 2,2′-diaryl-1,1′-binaphthalenes

Marcel Ehn, N. Vassilev, M. Putala, 2013 .

Influence of the spin-orientation of free and unpaired protons of ortho-water on the crystallization of the (0 0 1) face of TGS crystal: “in situ” investigation

N. Vassilev, R. Genova, A. Bikov, 2014 .

Hydrolysis of 4-imino-imidazolidin-2-ones in acid and the mechanism of cyclization of hydantoic acid amides.

N. Vassilev, I. Pojarlieff, V. Angelova, 2007, Organic & biomolecular chemistry.