O. B. FLEKHTER: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

1

Synthesis and Antiviral Activity of Lupane Triterpenoids and Their Derivatives

O. B. Flekhter, E. I. Boreko, L. R. Nigmatullina, N. I. Pavlova, N. I. Medvedeva, S. N. Nikolaeva, O. A. Ashavina, O. V. Savinova, L. A. Baltina, F. Z. Galin, G. A. Tolstikov

Journal:

Pharmaceutical Chemistry Journal

Year:

2004

Language:

english

File:

PDF, 85 KB

english, 2004

2

Antiviral activity of betulin, betulinic and betulonic acids against some enveloped and non-enveloped viruses

N.I. Pavlova, O.V. Savinova, S.N. Nikolaeva, E.I. Boreko, O.B. Flekhter

Journal:

Year:

2003

Language:

english

File:

PDF, 54 KB

english, 2003

3

Synthesis and hepatoprotector activity of 2-arylidene methylbetulonate derivatives

O. B. Flekhter, L. T. Karachurina, L. R. Nigmatullina, L. A. Baltina, F. S. Zarudii, V. A. Davydova, L. V. Spirikhin, I. P. Baikova, F. Z. Galin, G. A. Tolstikov

Journal:

Pharmaceutical Chemistry Journal

Year:

2000

Language:

english

File:

PDF, 268 KB

english, 2000

4

Synthesis of Methyl [3,2-c]-Pyrazol-lup-20(29)-en-28-oate

L. R. Nigmatullina, O. B. Flekhter, L. A. Baltina, N. I. Medvedeva, G. A. Tolstikov

Journal:

Chemistry of Natural Compounds

Year:

2002

Language:

english

File:

PDF, 17 KB

english, 2002

5

Synthesis of 1,2,3-Thiadiazolo Terpenoids on the Basis of Cyclopentanonopimaric and Betulonic Acids.

O. B. Flekhter, E. V. Tret'yakova, N. I. Medvedeva, L. A. Baltinax, F. Z. Galin, G. A. Tolstikov, V. A. Bakulev

Journal:

Year:

2004

File:

PDF, 138 KB

2004

6

ChemInform Abstract: Approach to the Synthesis of Glycyrrhizinic Acid from Glycyrrham. Pharmacological Properties.

L. A. Baltina, R. M. Kondratenko, S. R. Mustafina, O. B. Flekhter, Yu. I. Murinov, V. A. Davydova, F. S. Zarudii, A. F. Ismagilova, G. A. Tolstikov

Journal:

Year:

2001

File:

PDF, 23 KB

2001

7

Lupane triterpenes and derivatives with antiviral activity

L.A. Baltina, O.B. Flekhter, L.R. Nigmatullina, E.I. Boreko, N.I. Pavlova, S.N. Nikolaeva, O.V. Savinova, G.A. Tolstikov

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2003

Language:

english

File:

PDF, 164 KB

english, 2003

8

Effective synthesis of methyl 3β-amino-3-deoxybetulinate

G. V. Giniyatullina, O. B. Flekhter, I. P. Baikova, Z. A. Starikova, G. A. Tolstikov

Journal:

Chemistry of Natural Compounds

Year:

2008

Language:

english

File:

PDF, 90 KB

english, 2008

9

Synthesis and Pharmacological Activity of Betulin, Betulinic Acid, and Allobetulin Esters

O. B. Flekhter, N. I. Medvedeva, L. T. Karachurina, L. A. Baltina, F. Z. Galin, F. S. Zarudii, G. A. Tolstikov

Journal:

Pharmaceutical Chemistry Journal

Year:

2005

Language:

english

File:

PDF, 78 KB

english, 2005

10

Betulonic amides modified at cycle a by amino acids: Synthesis and inhibition of flu A virus reproduction

O. B. Flekhter, N. I. Medvedeva, G. A. Tolstikov, O. V. Savinova, E. I. Boreko, F. M. Dolgushin

Journal:

Russian Journal of Bioorganic Chemistry

Year:

2009

Language:

english

File:

PDF, 277 KB

english, 2009

11

Synthesis of 1,2,3-Thiadiazolo Terpenoids on the Basis of Cyclopentanonopimaric and Betulonic Acids

O. B. Flekhter, E. V. Tret'yakova, N. I. Medvedeva, L. A. Baltinax, F. Z. Galin, G. A. Tolstikov, V. A. Bakulev

Journal:

Russian Journal of Organic Chemistry

Year:

2004

Language:

english

File:

PDF, 147 KB

english, 2004

12

Synthesis of 2-Amino-4-aryl-3-cyano-4H-pyrano and 2-Amino-3-cyanothieno Derivatives of Cyclopentanonopimaric Acid

E. V. Tret'yakova, O. B. Flekhter, F. Z. Galin, L. V. Spirikhin, G. A. Tolstikov

Journal:

Russian Journal of Organic Chemistry

Year:

2003

Language:

english

File:

PDF, 72 KB

english, 2003

13

Synthesis of 5-Hydroxy-1,3-benzoxathiol-2-one and 2-Amino-1,3-benzothiazol-6-ol Derivatives from Chrysenequinonecarboxylic Acid.

E. V. Tret'yakova, O. B. Flekhter, F. Z. Galin, E. E. Shul'ts, G. A. Tolstikov

Journal:

Year:

2006

File:

PDF, 22 KB

2006

14

Transformations of Glycyrrhizic Acid: The Synthesis of 3-O-[β-6’-Desoxy-6’-amino-d- glucopyranosyl (1→2)-β-6”-Amino-D-glucopyranosido]-(3β,20β)-11-oxo-20-methoxy- carbonyl-18β-olean-12-en-3-ol

Lidiya A. Baltina, Natal’ya G. Serdyuk, Oxana B. Flekhter, Ekaterina V. Vasil’eva, Leonid V. Spirikhin, Genrikh A. Tolstikov

Journal:

Mendeleev Communications

Year:

1995

Language:

english

File:

PDF, 104 KB

english, 1995

15

Simplified stereoselective synthesis of triterpene 3-O-2-deoxy-α-D-glycosides

Oksana B. Flekhter, Lidiya A. Baltina, Ekaterina V. Vasiljieva, Genrikh A. Tolstikov

Journal:

Mendeleev Communications

Year:

1997

Language:

english

File:

PDF, 222 KB

english, 1997

16

ChemInform Abstract: SYNTHESIS AND STEREOCHEMISTRY OF 3-HYDROXY-4-ALKYLTHIOSULFOLANES

NOVITSKAYA, N. N., FLEKHTER, B. V., TOLSTIKOV, G. A.

Journal:

Chemischer Informationsdienst

Year:

1980

File:

PDF, 116 KB

1980

17

ChemInform Abstract: Isomerization of Glycyrrhizinic Acid. Antiulcer Activity.

L. A. BALTINA, N. G. SERDYUK, O. B. FLEKHTER, L. V. KRASNOVA, V. A. DAVYDOVA, A. F. ISMAGILOVA, F. S. ZARUDII, G. A. TOLSTIKOV

Journal:

Year:

1997

File:

PDF, 29 KB

1997

18

ChemInform Abstract: Stereoselective Synthesis of 2-Deoxy-α-D-arabino-hexopyranosides of Triterpenic Alcohols.

L. A. BALTINA, O. B. FLEKHTER, E. V. VASIL'EVA, G. A. TOLSTIKOV

Journal:

Year:

1997

File:

PDF, 30 KB

1997

19

ChemInform Abstract: Synthesis, Antiinflammatory, and Antiulcer Activity of Some 2-Substituted Derivatives of Betulonic Acid, Methyl Betulonate and Lupenone.

O. B. Flekhter, L. R. Nigmatullina, L. T. Karachurina, L. A. Baltina, F. S. Zarudii, V. A. Davydova, F. Z. Galin, G. A. Tolstikov

Journal:

Year:

2001

File:

PDF, 30 KB

2001

20

Derivatives of sulfolane, a new class of antiinflammatory compounds

G. A. Tolstikov, N. N. Novitskaya, B. V. Flekhter, D. N. Lazareva, V. A. Davydova, É. G. Kamalova

Journal:

Pharmaceutical Chemistry Journal

Year:

1978

Language:

english

File:

PDF, 439 KB

english, 1978

21

Synthesis of 1,6-Dihydro- and 4-(4-Nitrophenyl)-1,2,3,4-tetrahydropyrimidine, 1H- and 1-Phenyl-1H-pyrazole, and Isoxazole Derivatives on the Basis of Cyclopentanonopimaric Acid.

E. V. Tret'yakova, O. B. Flekhter, F. Z. Galin, L. V. Spirikhin, I. P. Baikova, G. A. Tolstikov

Journal:

Year:

2004

File:

PDF, 151 KB

2004

22

Synthesis of the lupinine ester of betulonic acid

F. Z. Galin, V. G. Kartsev, O. B. Flekhter, G. V. Giniyatullina, G. A. Tolstikov

Journal:

Chemistry of Natural Compounds

Year:

2004

Language:

english

File:

PDF, 22 KB

english, 2004

23

Synthesis and Antiviral Activity of Betulonic Acid Amides and Conjugates with Amino Acids

O. B. Flekhter, E. I. Boreko, L. R. Nigmatullina, E. V. Tret'yakova, N. I. Pavlova, L. A. Baltina, S. N. Nikolaeva, O. V. Savinova, V. F. Eremin, F. Z. Galin, G. A. Tolstikov

Journal:

Russian Journal of Bioorganic Chemistry

Year:

2004

Language:

english

File:

PDF, 83 KB

english, 2004

24

Synthesis of 30-amino derivatives of 3,28-di-O-acetylbetulin

O. B. Flekhter, I. E. Smirnova, F. Z. Galin, G. V. Giniyatullina, E. V. Tret’yakova, G. A. Tolstikov

Journal:

Chemistry of Natural Compounds

Year:

2004

Language:

english

File:

PDF, 29 KB

english, 2004

25

Synthesis and Antiulcer Activity of Quinopimaric Acid Derivatives.

O. B. Flekhter, E. V. Tret'yakova, N. S. Makara, S. F. Gabdrakhmanova, N. Zh. Baschenko, F. Z. Galin, F. S. Zarudii, G. A. Tolstikov

Journal:

Year:

2003

File:

PDF, 116 KB

2003

26

Synthesis of 3-O-Acetylbetulinic And Betulonic Aldehydes According to Svern and the Pharmacological Activity of Related Oximes

O. B. Flekhter, O. Yu. Ashavina, E. I. Boreko, L. T. Karachurina, N. I. Pavlova, N. N. Kabal'nova, O. V. Savinova, F. Z. Galin, S. N. Nikolaeva, F. S. Zarudii, L. A. Baltina, G. A. Tolstikov

Journal:

Pharmaceutical Chemistry Journal

Year:

2002

Language:

english

File:

PDF, 81 KB

english, 2002

27

Oxidation of betulin and its acetates with dimethyldioxirane

Olga Yu. Ashavina, Nataliya N. Kabalnova, Oxana B. Flekhter, Leonid V. Spirikhin, Fanur Z. Galin, Lidiya A. Baltina, Zoya A. Starikova, Mikhail Yu. Antipin, Genrikh A. Tolstikov

Journal:

Mendeleev Communications

Year:

2004

Language:

english

File:

PDF, 218 KB

english, 2004

28

ChemInform Abstract: Synthesis of Triterpene 3-O-(2-Deoxy-α-glycosides).

L. A. BALTINA, O. B. FLEKHTER, E. V. VASIL'EVA, G. A. TOLSTIKOV

Journal:

Year:

1996

File:

PDF, 30 KB

1996

29

Synthesis of 5-Hydroxy-1,3-benzoxathiol-2-one and 2-Amino-1,3-benzothiazol-6-ol Derivatives from Chrysenequinonecarboxylic Acid

E. V. Tret’yakova, O. B. Flekhter, F. Z. Galin, E. E. Shul’ts, G. A. Tolstikov

Journal:

Russian Journal of Organic Chemistry

Year:

2005

Language:

english

File:

PDF, 62 KB

english, 2005

30

Synthesis of dihydroquinopimaric acid conjugates with amino acids

O. B. Flekhter, I. E. Smirnova, E. V. Tret’yakova, G. A. Tolstikov, O. V. Savinova, E. I. Boreko

Journal:

Russian Journal of Bioorganic Chemistry

Year:

2009

Language:

english

File:

PDF, 239 KB

english, 2009

31

Synthesis and Antiinflammatory Activity of New Acylated Betulin Derivatives

O. B. Flekhter, N. I. Medvedeva, L. T. Karachurina, L. A. Baltina, F. S. Zarudii, F. Z. Galin, G. A. Tolstikov

Journal:

Pharmaceutical Chemistry Journal

Year:

2002

Language:

english

File:

PDF, 76 KB

english, 2002

32

Synthesis and Pharmacological Activity of Acylated Betulonic Acid Oxides and 28-Oxo-Allobetulone

O.B. Flekhter, E.I. Boreko, L.R. Nigmatullina, N.I. Pavlova, N.I. Medvedeva, S.N. Nikolaeva, E.V. Tret'yakova, O.V. Savinova, L.A. Baltina, L.T. Karachurina, F.Z. Galin, F.S. Zarudii, G.A. Tolstikov

Journal:

Pharmaceutical Chemistry Journal

Year:

2004

Language:

english

File:

PDF, 79 KB

english, 2004

33

ChemInform Abstract: Stereoselective Synthesis of 2,6-Dideoxy-α-L- arabinohexopyranoside of Glycyrrhetic Acid (V) in the Presence of Iodine-Containing Promotors.

O. B. FLEKHTER, L. A. BALTINA, E. V. VASIL'EVA, G. A. TOLSTIKOV

Journal:

Year:

1997

File:

PDF, 34 KB

1997

34

ChemInform Abstract: Simplified Stereoselective Synthesis of Triterpene 3-O-2-Deoxy-α- D-glycosides.

O. B. FLEKHTER, L. A. BALTINA, E. V. VASILJIEVA, G. A. TOLSTIKOV

Journal:

Year:

1997

File:

PDF, 32 KB

1997

35

Stereoselective synthesis of triterpene 2-deoxy-α-d-lyxo-hexopyranosides

L. A. Baltina, O. B. Flekhter, E. V. Vasil'eva, G. A. Tolstikov

Journal:

Russian Chemical Bulletin

Year:

1997

Language:

english

File:

PDF, 366 KB

english, 1997

36

Synthesis and Pharmacological Activity of 20-Keto-29-norlupane Derivatives

O. B. Flekhter, G. V. Giniyatullina, F. Z. Galin, N. Zh. Baschenko, N. S. Makara, F. S. Zarudii, E. I. Boreko, O. V. Savinova, N. I. Pavlova, Z. A. Starikova, G. A. Tolstikov

Journal:

Chemistry of Natural Compounds

Year:

2005

Language:

english

File:

PDF, 39 KB

english, 2005

37

Stereoselective synthesis of 2-deoxy-α-d-arabino-hexopyranosides of triterpene alcohols

L. A. Baltina, O. B. Flekhter, E. V. Vasil'eva, G. A. Tolstikov

Journal:

Russian Chemical Bulletin

Year:

1996

Language:

english

File:

PDF, 725 KB

english, 1996

38

Stereoselective synthesis of 2,6-dideoxy-α-l-arabino-hexopyranoside of glycyrrhetic acid in the presence of iodine-containing promoters

O. B. Flekhter, L. A. Baltina, E. V. Vasil'eva, G. A. Tolstikov

Journal:

Russian Chemical Bulletin

Year:

1996

Language:

english

File:

PDF, 508 KB

english, 1996

39

Synthesis of Ursolic Phosphonate Derivatives as Potential Anti-HIV Agents

Deng, Sheng-Lou, Baglin, Isabelle, Nour, Mohammed, Flekhter, Oxana, Vita, Claudio, Cavé, Christian

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

2007

Language:

english

File:

PDF, 433 KB

english, 2007

40

Antiinflammatory Activity of Quinopimaric Acids and Synthesis of Amides of These Acids.

O. B. Flekhter, E. V. Tret'yakova, F. Z. Galin, L. T. Karachurina, L. V. Spirikhin, F. S. Zarudii, G. A. Tolstikov

Journal:

Year:

2003

File:

PDF, 73 KB

2003

41

Stereoselective synthesis of triterpene and steroid 2-deoxy-α-glycosides using iodonium dicollidine perchlorate

L. A. Baltina, O. B. Flekhter, E. V. Vasil'eva, G. A. Tolstikov

Journal:

Russian Chemical Bulletin

Year:

1997

Language:

english

File:

PDF, 383 KB

english, 1997

42

Direct stereospecific synthesis of triterpene and steroid 2-deoxy-α-glycosides

O. B. Flekhter, L. A. Baltina, G. A. Tolstikov

Journal:

Russian Chemical Bulletin

Year:

1997

Language:

english

File:

PDF, 334 KB

english, 1997

43

Synthesis of Glycyrrhizic Acid from Glycyrram and Pharmaciological Characterization of the Product

L. A. Baltina, R. M. Kondratenko, S. R. Mustafina, O. B. Flekhter, Yu. I. Murinov, V. A. Davydova, F. S. Zarudii, A. F. Ismagilova, G. A. Tolstikov

Journal:

Pharmaceutical Chemistry Journal

Year:

2001

Language:

english

File:

PDF, 66 KB

english, 2001

44

Preparation of Betulinic Acids from Betulin Extract. Antiviral and Antiulcer Activity of Some Related Terpenoids.

O. B. Flekhter, L. R. Nigmatullina, L. A. Baltina, L. T. Karachurina, F. Z. Galin, F. S. Zarudii, G. A. Tolstikov, E. I. Boreko, N. I. Pavlova, S. N. Nikolaeva, et al. et al.

Journal:

Year:

2003

File:

PDF, 88 KB

2003

45

Synthesis of squalamine analogues on the basis of lupane triterpenoids

Gulnara V. Giniyatullina, Oxana B. Flekhter, Genrikh A. Tolstikov

Journal:

Mendeleev Communications

Year:

2009

Language:

english

File:

PDF, 226 KB

english, 2009

46

Synthesis and stereochemistry of 3-hydroxy-4-alkylthiosulfolanes

N. N. Novitskaya, B. V. Flekhter, G. A. Tolstikov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1979

Language:

english

File:

PDF, 417 KB

english, 1979

47

Synthesis of triterpene 3-O-(2-deoxy-α-glycosides)

L. A. Baltina, O. B. Flekhter, E. V. Vasil'eva, G. A. Tolstikov

Journal:

Russian Chemical Bulletin

Year:

1995

Language:

english

File:

PDF, 181 KB

english, 1995

48

ChemInform Abstract: SULFOLANE DERIVATIVES AS A NEW CLASS OF ANTIINFLAMMATORY COMPOUNDS

TOLSTIKOV, G. A., NOVITSKAYA, N. N., FLEKHTER, B. V., LAZAREVA, D. N., DAVYDOVA, V. A., KAMALOVA, E. G.

Journal:

Chemischer Informationsdienst

Year:

1979

File:

PDF, 142 KB

1979

49

Synthesis and Antiinflammatory Activity of New Acyl Derivatives of Betulin

O. B. Flekhter, N. I. Medvedeva, L. T. Karachurina, L. A. Baltina, F. S. Zarudii, F. Z. Galin, G. A. Tolstikov

Journal:

Year:

2003

File:

PDF, 111 KB

2003

50

Synthesis and Pharmacological Activity of Betulin Esters, Betulinic Acids and Allobetulin.

O. B. Flekhter, N. I. Medvedeva, L. T. Karachurina, L. A. Baltina, F. Z. Galin, F. S. Zarudii, G. A. Tolstikov

Journal:

Year:

2006

File:

PDF, 18 KB

2006

To build up a library is to create a life. It’s never just a random collection of books.

— Carlos María Domínguez

Official channel

Z-Library Desktop Launcher

Z-Library Since 2009 support@1delivery.pm

EnglishРусскийEspañolItalianoελληνικάاللغة العربيةBahasa IndonesiaBahasa Malaysiaहिन्दीDeutschFrançaisPortuguêsУкраїнськаPolski中文繁體中文日本語Tiếng ViệtAzərbaycan DiliՀայոց լեզուภาษาไทยTürk Diliქართველიবাংলাپښتوతెలుగుاردو한국어SrpskiБългарски