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1.
Инвентарный номер: нет.
   
   C 98

   
    Cyclization of N-alkylazinium cations with bisnucleophiles. 3. endo adducts in the reaction of quinoxalium salts with β-diketones and their x-ray diffraction analysis [Electronic resource] / O. N. Chupakhin, V. N. Charushin, N. A. Klyuev, A. I. Rezvukhin, V. A. Semion // Chemistry of Heterocyclic Compounds. - 1981. - Vol. 17, № 10. - P1046-1052. - Bibliogr. : p. 1052 (22 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
N-ALKYLQUINOXALINLUM SALTS -- β-DICARBONYL COMPOUNDS -- CYCLOADDUCTS
Аннотация: The cyclization of N-alkylquinoxalinium salts with the anions of β-dicarbonyl compounds proceeds regioselectively and stereoselectively and leads to endo-3a, 4,9,9a-tetrahydrofuro[2,3-b]quinoxalines. The structure of the cycloadducts was established on the basis of the 1H and 13C NMR spectra and the results of x-ray diffraction analysis

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1981, v.17, N 10, p.1046.pdf
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2.
Инвентарный номер: нет.
   
   C 47

    Charushin, V. N.
    Ring transformations of 5-nitropyrimidine via inverse diels-alder reactions [Electronic resource] / V. N. Charushin, Y. C. Van der Plas // Tetrahedron Letters. - 1982. - Vol. 23, № 38. - P3965-3968. - Bibliogr. : p. 3968 (17 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
5-NITROPYRIMIDINES -- ENAMINES -- DIELS-ALDER REACTIONS
Аннотация: 5-Nitropyrimidine undergoes inverse Diels-Alder cycloadditions with ketene_N,N-, -O,O- acetals and enamines resulting in pyridine derivatives. The 1H NMR evidence for the 1-N,N-diethyl-aminopropyne cycloadduct formation is presented

\\\\expert2\\nbo\\Tetrahedron Letters\\1982, v 23, p.3965.pdf
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3.
Инвентарный номер: нет.
   
   A 67

   
    Application of 1H and 13C NMR to the structural elucidation of tetrahydroquinoxalines condensed with five-membered heterocycles [Electronic resource] / V. N. Charushin, A. I. Chernyshev, N. N. Sorokin, O. N. Chupakhin // Organic Magnetic Resonance. - 1984. - Vol. 22, № 12. - P775-778. - Bibliogr. : p. 778 (22 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
N-METHYLTETRAHYDROQUINOXALINES -- PYRROLE -- IMIDAZOLE
Аннотация: 1H and 13C NMR spectral data for 21 N-methyltetrahydroquinoxalines annelated with furan, pyrrole, imidazole or thiazole rings are reported. Unambiguous assignments of the ring junction 13C resonances were made on the basis of selective decoupling experiments and with the aid of one-bond and long-range 13C–1H coupling constants. The effects of five-membered heterocycles on the 1H and 13C chemical shifts of the ring junction hydrogen and carbon atoms are considered. Values of one-bond 1J(CH) and vicinal 3J(HH) coupling constants between the ring junction protons are also discussed as a diagnostic means for structural elucidation of tetrahydroquinoxalines condensed with five-membered heterocycles.

\\\\expert2\\nbo\\Organic Magnetic Resonance\\1984. V. 22, N 12. P. 775.pdf
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4.
Инвентарный номер: нет.
   
   C 98

   
    Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 16. σ-adducts of quinoxalinium salts with amines, alcohols, and enolates and their role in cyclizations with β-dicarbonyl compounds [Electronic resource] / V. N. Charushin, M. G. Ponizovskii, O. N. Chupakhin, E. O. Sidorov, I. M. Sosonkin // Chemistry of Heterocyclic Compounds. - 1985. - Vol. 21, № 5. - С. 564-572. - Bibliogr. : p. 571-572 (16 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ACETYLACETONE -- 1H NMR SPECTROSCOPY -- N-METHYLQUINOXALINIUM CATION
Аннотация: In the reaction of N-methylquinoxalinium iodide with acetylacetone at −30 °C, the formation of 3-acetyl-2,4-dimethyl-3a,4,9,9a-tetrahydrofuro[2,3-b]quinoxaline has been recorded by 1H NMR spectroscopy, this being a regioisomer of the 3-acetyl-2,9-dimethyl-3a,4,9,9a-tetrahydro[2,3-b]quinoxaline formed in this reaction at temperatures above −10 °C. σ-Adducts of the N-methylquinoxalinium cation with alcohols, amines, and β-diketones have also been identified, and their role in cyclizations leading to the annelation of a furan ring is discussed.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1985, v.21, N 5, p. 564.pdf
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5.
Инвентарный номер: нет.
   
   R 30

   
    Reactions of N-alkylazinium cations. 3. Quaternary pteridinium salts. Synthesis, structure, and reactions with simple nucleophiles [Electronic resource] / I. V. Kazantseva, V. N. Charushin, O. N. Chupakhin, A. I. Chernyshev, S. E. Esipov // Chemistry of Heterocyclic Compounds. - 1985. - Vol. 21, № 9. - С. 1048-1055. - Bibliogr. : p. 1054-1055 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
4-Morpholinopteridine -- TRIETHYLOXONIUM TETRA-FLUOROBORATE -- NUCLEOSIDES
Аннотация: 4-Morpholinopteridine reacts with triethyloxonium tetra-fluoroborate to give two types of isomeric quaternary salts, viz., 1-ethyl- and 8-ethyl-4-morpholinopteridinium tetrafluoroborates. The structures of the pteridinium cations were proved by the 1H and 13C NMR spectra and also by chemical transformations in reactions with simple nucleophiles.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1985, v.21, N 9, p. 1048.pdf
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6.
Инвентарный номер: нет.
   
   Q 32

   
    Quaternization of pyrido[2,3-b]pyrazines: 1H and 13C NMR Study [Electronic resource] / O. N. Chupakhin, V. N. Charushin, A. I. Chernyshev, S. E. Esipov // Magnetic Resonance in Chemistry. - 1985. - Vol. 23, № 6. - С. 437-441. - Bibliogr. : p. 441 (20 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
N-METHYLPYRIDO[2,3-B]PYRAZINIUM SALTS -- PYRIDO[2,3-b]PYRAZINES
Аннотация: The structure of N-methylpyrido[2,3-b]pyrazinium salts has been examined by 1H and 13C NMR. 6-Dimethylamino- and 6-morpholino-pyrido[2,3-b]pyrazines were shown to undergo quaternization by methyl iodide at N-4 of the pyrazine ring, whereas the pyridine ring N-5 was the N-alkylation site in the reaction of unsubstituted pyrido[2,3-b]pyrazine with methyl iodide under the same conditions. The effects of quaternization on the 1H and 13C chemical shifts and the nJ(CH) values are discussed.

\\\\expert2\\nbo\\Magnetic Resonance in Chemistry\\1985, v.23, N 6, p.437.pdf
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7.
Инвентарный номер: нет.
   
   R 30

   
    Reactions of azinium cations. 6. N(1)-alkyl-1,2,4-triazinium salts. Reactions with indoles — The first case of the double addition of nucleophiles to a triazine ring [Electronic resource] / S. G. Alekseev, V. N. Charushin, O. N. Chupakhin, S. V. Shorshnev, A. I. Chernyshev, N. A. Klyuev // Chemistry of Heterocyclic Compounds. - 1986. - Vol. 22, № 11. - С. 1242-1249. - Bibliogr. : p. 1249 (31 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,4-DIAZINIUM SALTS -- INDOLES -- AZINIUM CATIONS
Аннотация: N(1)-Alkyl-3-morpholino-1,2,4-triazinium salts and N(1)-alkyl-3-pyrrolidino-1,2,4-triazinium salts were synthesized. The structures of these salts were established by 13C NMR spectroscopy. 1,2,4-Triazinium cations add indoles at C(5) and C(6) thereby displaying properties characteristic for 1,4-diazinium salts.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1986, v.22, N 11, p. 1242.pdf
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8.
Инвентарный номер: нет.
   

   
    1H and 13C NMR spectra of tetrahydroquinoxalines condensed with six-membered heterocycles [Electronic resource] / V. N. Charushin, N. N. Sorokin, A. I. Chernyshev, V. G. Baklykov, M. G. Ponizovskii, O. N. Chupakhin // Magnetic Resonance in Chemistry. - 1986. - Vol. 24, № 9. - С. 777-782. - Bibliogr. : p. 782 (16 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1H NMR -- 13C NMR -- CONDENSED TETRAHYDROQUINOXALINES
Аннотация: The 1H and 13C NMR spectra of tetrahydroquinoxalines condensed with pyridazine, pyrazine, oxazine, oxadiazine, thiadiazine or triazine rings have been measured in DMSO-d6 solution. The effects of six-membered heterocycles on 1H and 13C chemical shifts and the values of one-bond 1J(CH) and vicinal 3J(HH) coupling constants for the ring junction fragment are considered. The differences between the 1H and 13C spectral parameters of tetrahydroquinoxalines annelated with five- or six-membered heterocycles with the same set of heteroatoms attached to the ring junction carbons are also discussed.

\\\\expert2\\nbo\\Magnetic Resonance in Chemistry\\1986, v.24, N 9, p.777.pdf
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9.
Инвентарный номер: нет.
   
   R 30

   
    Reactions of azinium cations. 7. 13C NMR spectra and electron structure of neutral σ-adducts of 1,4-diazinium cations and methylate anion [Electronic resource] / O. N. Chupakhin, V. N. Charushin, I. V. Kazantseva, M. G. Ponizovskii, E. O. Sidorov, P. A. Torgashev, A. V. Belik // Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 10. - С. 1112-1117. - Bibliogr. : p. 1116-1117 (23 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NMR SPECTRA -- σ-ADDUCTS -- PYRAZINIUM
Аннотация: The 13C NMR spectra have been recorded of a number of σ-adducts formed by pyrazinium, quinoxalinium, and pteridinium cations with methylate anion. The experimental data were compared with CNDO/2 calculations of adduct electron structure.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 10, p. 1112.pdf
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10.
Инвентарный номер: нет.
   
   C 57

    Chupakhin, O. N.
    Application of 1H, 13C and 15N NMR in the chemistry of 1,4-diazines [Electronic resource] / O. N. Chupakhin, V. N. Charushin, A. I. Chernyshev // Progress in Nuclear Magnetic Resonance Spectroscopy. - 1988. - Vol. 20, № 2. - С. 95-206. - Bibliogr. : p. 197-206 (202 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,4-DIAZINES -- 15N NMR -- 13C -- 1H

\\\\expert2\\nbo\\Progress in Nuclear Magnetic Resonance Spectroscopy\\1988. V. 20, N 2. P. 95-206.pdf
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11.
Инвентарный номер: нет.
   
   R 30

   
    Reactions of azinium cations. 8. Electron structures of 3-substituted 1,2,4-triazines and protonation, quaternization, and reactions with nucleophiles [Electronic resource] / S. G. Alekseev, P. A. Torgashev, M. A. Fedotov, A. I. Rezvukhin, S. V. Shorshnev, A. V. Belik, V. N. Charushin, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1988. - Vol. 24, № 4. - С. 434-441. - Bibliogr. : p. 440-441 (34 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,4-TRIAZINES -- NUCLEOPHILES
Аннотация: The electron structures of 3-substituted 1,2,4-triazines and isomeric N-methyltriazinium salts were calculated by the CNDO/2 method. The results of the calculations were compared with the parameters of the 13C, 15N, and 14N NMR spectra, as well as with experimental data on the protonation, N-alkylation, and reactions of 1,2,4-triazines with simple nucleophiles. The protonation centers of 1,2,4-triazines were determined by means of 1H, 13C, and 14N NMR spectroscopy. The covalent adducts formed by the proton salts of 3-methoxy-, 3-methylthio-, 3-morpholino-, and 3-pyrrolidino-1,2,4-triazine with water and methanol were recorded by 1H NMR spectroscopy.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1988, v.24, N 4, p. 434.pdf
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12.
Инвентарный номер: нет.
   
   R 30

   
    Reactivity of 3-alkynylthio-1-ethyl-1,2-4-triazinium salts in intramolecular Diels-Alder reactions [Electronic resource] / V. N. Charushin, Beb Van Veldhuizen, Henk C. van der Plas, Casper H. Stam // Tetrahedron. - 1989. - Vol. 45. - С. 6499-6510. - Bibliogr. : p. 6510 (20 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,4-TRIAZINES -- TRIETHYLOXONIUM TETRAFLUOROBORATE -- DIELS-ALDER REACTIONS
Аннотация: Quaternization of 3-(3-butynylthio) and 3-(4-pentynyltio) substituted 1,2,4-triazines with triethyloxonium tetrafluoroborate in CH2Cl2 at room temperature occurs exclusively at N-1 yielding 3-alkynylthio-1-ethyl-1,2,4-triazinium salts, as unequivocally shown by the 13C NMR and X-ray crystallographic data. 3-Alkynylthio-1-ethyl-5-phenyl-1,2,4-triazinium salts undergo the intramolecular Diels-Alder reaction into the corresponding thieno [2,3-b]- and thiopyrano [2,3-b]pyridines under considerably milder conditions than the corresponding neutral 1,2,4-triazines.

\\\\expert2\\nbo\\Tetrahedron\\1989, v. 45, p. 6499.pdf
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13.
Инвентарный номер: нет.
   
   A 53

   
    An Unusually easy oxidative dequaternization of N-alkyl-1,2,4-triazinium salts [Electronic resource] / O. N. Chupakhin, B. V. Rudakov, P. McDermott, S. G. Alexeev, V. N. Charushin, F. Hegarty // Mendeleev Communications. - 1995. - Vol. 5, № 3. - P104-105
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Unusually easy dequaternization has been found to occur on treatment of 1-alkyl-3-morpholino-5-phenyl-1,2,4-triazinium iodides with triethylamine in alcohol or acetone solutions at room temperature; a plausible reaction mechanism has been advanced on the basis of NMR and kinetic studies

\\\\expert2\\nbo\\Mendeleev Communications\\1995, v.5, N 3. p.104.pdf
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14.
Инвентарный номер: нет.
   
   N 89

   
    Novel 1-trifluoromethyl substituted 1,2-ethylenediamines and their use for the synthesis of fluoroquinolones [Text] / A. Y. Aizikovich, M. V. Nikonov, M. I. Kodess, V. Yu. Korotaev, V. N. Charushin, O. N. Chupakhin // Tetrahedron. - 2000. - Vol. 56, N 13. - P1923-1927
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A common approach to the synthesis of 1-trifluoromethyl-1,2-ethylenediamines was deweloped. Based on these original building blocks the new derivatives of N-substituted fluoroquinolones bearing the trifluoromethyl group were obtined

\\\\expert2\\nbo\\Tetrahedron\\2000, v.56, p. 1923-1927, . Aizikovich.pdf
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15.
Инвентарный номер: нет.
   
   F 98

   
    Fused fluoroquinolones: synthesis and 1H and 19F NMR studies [Text] / V. N. Charushin, E. V. Nosova, G. N. Lipunova, M. I. Kodess // Journal of Fluorine Chemistry. - 2001. - Vol. 110, № 1. - P25-30. - Bibliogr. : p. 30 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: New derivatives of fused fluoroquinolones bearing five aromatic rings have been obtained. The 19F NMR spectra of these pentacyclic fluoroquinolones demonstrate unusual through space 1H–19F and 19F–19F spin–spin interactions with coupling constants 6J(F, H)=2.0–3.0 Hz, 7J(F, F)=3.5–4.0 Hz and 9J(F, H)=3.0–3.5 Hz. Relative reactivities of fluorine atoms in pentacyclic fluoroquinolones in the amino-defluorination reactions are also different relative to bi- and tricyclic fluoroquinolones

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2001.v.110. p. 25.pdf
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16.
Инвентарный номер: нет.
   
   F 70

   
    Fluorine-containing Heterocycles. XI. 5(6)-Fluoro-6(5)-X-benzofuroxans: Synthesis, Tautomerism, and Transformations [Electronic resource] / O. N. Chupakhin, S. K. Kotovskaya, S. A. Romanova, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2004. - Vol. 40, № 8. - P1167-1174
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Features of 5(6)-fluoro-6(5)-X-benzofuroxans tautomerism were investigated. By 1H, 13C, and 19F NMR spectroscopy the direction of Boulton-Katritzky rearrangement in nitration, nitrosation, and azo coupling of fluorine-containing furoxanes was determined

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2004, 40 (8), 1167.pdf
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17.
Инвентарный номер: нет.
   

   
    5(6)-Fluoro-6(5)-R-benzofuroxans: synthesis and NMR 1H, 13C and 19F studies [Text] / S. K. Kotovskaya, S. A. Romanova, V. N. Charushin, M. I. Kodess, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2004. - Vol. 125, № 3. - P421-428 : ил. - Библиогр.: с. 428 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
5,6-DIFLUOROBENZOFUROXAN -- NUCLEOPHILIC SUBSTITUTION -- X-RAY CRYSTALLOGRAPHY
Аннотация: 5(6)-Fluoro-6(5)-substituted benzofuroxans were obtained by the reactions of 5,6-difluorobenzofuroxan with a number of nucleophiles, such as alkylamines, cycloalkylimines, sodium azide and sodium alkoxides. The features of tautomerism in the series of asymmetrical 5(6)-fluorobenzofuroxans in acetone solutions have been studied by 1H, 13C and 19F NMR.????

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2004, v.125, p.421.pdf
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18.
Инвентарный номер: нет.
   
   U 88

   
    Use of chiral lanthanide shift reagent in the eluidation of NMR signals from enantiomeric mixtures of 1-substituted 3-amino-1,2-dicarba-closo-dodecarboranes [Text] : доклад, тезисы доклада / M. I. Kodess, M. A. Ezhikova, G. L. Levit, V. P. Krasnov, V. N. Charushin // Euroboron 3, The 3rd European Meeting on Boron Chemistry, Pruhonice-by-Prague, Czech Republic, 12-16 Sept. 2004 : abstr. . - Pruhonice-by-Prague, Czech Republic, 2004. - P33
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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19.
Инвентарный номер: нет.
   
   F 70

   
    Fluorine-containing pyrido[1,2-a]quinazolin-6-ones [Electronic resource] / E. V. Nosova, G. N. Lipunova, M. I. Kodess, E. B. Vasil'eva, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 10. - P2314-2318
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Reactions of 2-aminopyridine and 2-amino-5-methylpyridine with 2,3,4,5-tetrafluorobenzoyl chloride afforded N,N’-diaroylpyridinium salts, which were converted into 6H-pyrido[1,2-a]quinazolin-6-ones by refluxing in toluene in the presence of triethylamine. The angular structure of the tricyclic derivatives obtained was confirmed by 19F and 13C NMR spectroscopy and 2D heteronuclear HetCOR and HMBC experiments

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (10), 2314.pdf
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20.
Инвентарный номер: нет.
   
   N 72

   
    NMR determination of enantiomeric composition of 1-substituted 3-amino-1,2-dicarba-closo-dodecaboranes using Eu(hfc)3 [Electronic resource] / M. I. Kodess, M. A. Ezhikova, G. L. Levit, V. P. Krasnov, V. N. Charushin // Journal of Organometallic Chemistry. - 2005. - Vol. 690, № 11. - P2766-2768
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Experimental conditions for determination of enantiomeric composition of 1-substituted 3-aminocarboranes by 1H and 13C NMR spectroscopy using chiral shift reagent Eu(hfc)3 have been found.

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