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1

Practice theory: a new approach for archival and recordkeeping research

Ivanov, Asen Ognyanov

Journal:

Records Management Journal

Year:

2017

Language:

english

File:

PDF, 516 KB

english, 2017

2

Isolation and structure elucidation of pectic polysaccharide from rose hip fruits (Rosa canina L.)

Ognyanov, Manol, Remoroza, Connie, Schols, Henk A., Georgiev, Yordan, Kratchanova, Maria, Kratchanov, Christo

Journal:

Carbohydrate Polymers

Year:

2016

Language:

english

File:

PDF, 546 KB

english, 2016

3

New Sesquiterpene Lactones from Centaurea phrygia

Tsankova, E., Ognyanov, I.

Journal:

Year:

1985

Language:

english

File:

PDF, 188 KB

english, 1985

4

New Rotenoids in Amorpha fruticosa Fruits

Somleva, T., Ognyanov, I.

Journal:

Year:

1985

Language:

english

File:

PDF, 256 KB

english, 1985

5

Acidic polysaccharide complexes from purslane, silver linden and lavender stimulate Peyer’s patch immune cells through innate and adaptive mechanisms

Georgiev, Yordan N., Ognyanov, Manol H., Kiyohara, Hiroaki, Batsalova, Tsvetelina G., Dzhambazov, Balik M., Ciz, Milan, Denev, Petko N., Yamada, Haruki, Paulsen, Berit S., Vasicek, Ondrej, Lojek, Anto

Journal:

International Journal of Biological Macromolecules

Year:

2017

Language:

english

File:

PDF, 785 KB

english, 2017

6

Carotenoids, tocopherols, organic acids, charbohydrate and mineral content in different medicinal plant extracts

Mihaylova, Dasha, Vrancheva, Radka, Petkova, Nadezhda, Ognyanov, Manol, Desseva, Ivelina, Ivanov, Ivan, Popova, Mariya, Popova, Aneta

Journal:

Zeitschrift für Naturforschung C

Year:

2018

Language:

english

File:

PDF, 144 KB

english, 2018

7

Carbohydrates. Synthetic Methods and Applications in Medicinal Chemistry. Herausgegeben von H. Ogura, A. Hasegawa und T. Suami. VCH Verlagsgesellschaft, Weinheim/VCH Publishers, New York/Kodansha Ltd., Tokio, 1992. XIII, 406 S., geb. 208.00 DM. - ISBN 3-527-29012-5/1-56081-701-1/4-06-205807-3

Vassil I. Ognyanov, Alan P. Kozikowski

Journal:

Angewandte Chemie

Year:

1994

Language:

german

File:

PDF, 173 KB

german, 1994

8

Book Review: Carbohydrates—Synthetic Methods and Applications in Medicinal Chemistry. Edited by H. Ogura, A. Hasegawa and T. Suami

Vassil I. Ognyanov, Alan P. Kozikowski

Journal:

Angewandte Chemie International Edition

Year:

1994

Language:

english

File:

PDF, 157 KB

english, 1994

9

Über die Struktur des Alkaloids Herbacein aus Vinca herbacea W. K.

Iliya Ognyanov, Bogomil Pyuskyulev

Journal:

European Journal of Inorganic Chemistry

Year:

1966

Language:

german

File:

PDF, 383 KB

german, 1966

10

Die Struktur des Herbalins — eines Oxindol-Alkaloids aus Vinca herbacea W. K.

Journal:

European Journal of Inorganic Chemistry

Year:

1966

Language:

german

File:

PDF, 222 KB

german, 1966

11

The composition of Homalomena aromatica schott. Oil of vietnamese origin

M. Todorova, Pham Trong Thi Tho, I. Ognyanov, B. M. Lawrence

Journal:

Flavour and Fragrance Journal

Year:

1988

Language:

english

File:

PDF, 152 KB

english, 1988

12

Alkaloide aus vinca herbacea W.K. VIII. Mitteilung Isolierung und struktur von Hervin

I. Ognyanov, B. Pyuskyulev, B. Bozjanov, M. Hesse

Journal:

Helvetica Chimica Acta

Year:

1967

Language:

german

File:

PDF, 317 KB

german, 1967

13

Cyclopentenone Annulation of 2-Oxocycloalkane-1-carbonitriles

I. Ognyanov Vassil, Manfred Hesse

Journal:

Helvetica Chimica Acta

Year:

1987

Language:

english

File:

PDF, 448 KB

english, 1987

14

Synthesis of Gossypol Analogues

Vassil I. Ognyanov, Orlin S. Petrov, Emil P. Tiholov, Nikola M. Mollov

Journal:

Helvetica Chimica Acta

Year:

1989

Language:

english

File:

PDF, 499 KB

english, 1989

15

Synthesis of macrocyclic imides by one-step ring enlargement

Vassil I. Ognyanov, Manfred Hesse

Journal:

Helvetica Chimica Acta

Year:

1989

Language:

english

File:

PDF, 242 KB

english, 1989

16

Cycloalkylations of N-(ω-Halogenoalkyl)-substituted Macrocyclic Imides

Vassil I. Ognyanov, Manfred Hesse

Journal:

Helvetica Chimica Acta

Year:

1990

Language:

english

File:

PDF, 295 KB

english, 1990

17

Synthesis of 1H,2,3-Triazoles from 2-Substituted Cyclododecanones and Phenyl Azide

Vassil I. Ognyanov, Manfred Hesse

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 265 KB

english, 1991

18

Synthese von Makrocyclen durch Ringerweiterung von 14gliedrigen cyclischen Imiden

Thomas Koch, Vassil I. Ognyanov, Manfred Hesse

Journal:

Helvetica Chimica Acta

Year:

1992

Language:

german

File:

PDF, 430 KB

german, 1992

19

Reactions of Glutaconic and Homophthalic Anhydrides with Imidates, Imidoyl Chlorides, and 1-Chloroisoquinoline

Elena Stanoeva, Marietta Haimova, Vassil Ognyanov

Journal:

European Journal of Organic Chemistry

Year:

1984

Language:

english

File:

PDF, 303 KB

english, 1984

20

The electron impact mass spectra of some rotenoid derivatives

I. Kostova, I. Ognyanov, H. Budzikiewicz

Journal:

Journal of Mass Spectrometry

Year:

1983

Language:

english

File:

PDF, 281 KB

english, 1983

21

Apressin, a guaianolide of the endoperoxide type from Achillea depressa

Elena Tsankova, Ulla Jacobsson Kempe, Torbjörn Norin, Iliya Ognyanov

Journal:

Year:

1981

Language:

english

File:

PDF, 259 KB

english, 1981

22

Sesquiterpene lactones in a population of Balsamita major cultivated in bulgaria

Milka N. Todorova, Iliya V. Ognyanov

Journal:

Year:

1989

Language:

english

File:

PDF, 302 KB

english, 1989

23

A highly stereoselective synthesis of 3,4-dihydro-1(2H)-isoquinolinones and 8-oxoberbines from homophthalic anhydrides and azomethines

M.A. Haimova, N.M. Mollov, S.C. Ivanova, A.I. Dimitrova, V.I. Ognyanov

Journal:

Year:

1977

Language:

english

File:

PDF, 572 KB

english, 1977

24

Further studies on the sesquiterpene ketone germazone

E. Tsankova, I. Ognyanov

Journal:

Year:

1978

Language:

english

File:

PDF, 262 KB

english, 1978

25

Transannular cyclisation of germacrone and isogermacrone via oxymercuration-demercuration

E. Tsankova, I. Ognyanov, T. Norin

Journal:

Year:

1980

Language:

english

File:

PDF, 302 KB

english, 1980

26

Synthesis of macrocyclic enaminolactams by ring expansion reaction of 2-oxocyclododecane-1-carbonitrile with diarylcarbodiimides

Wladislaw Ivancev, Vassil I. Ognyanov, Manfred Hesse

Journal:

Year:

1996

Language:

english

File:

PDF, 737 KB

english, 1996

27

Tumor inhibitors. LXIV. isolation and structural elucidation of novel bufadienolides, the cytotoxic principles of Bersama abyssinica

S.Morris Kupchan, Iliya Ognyanov, Jerry L. Moniot

Journal:

Bioorganic Chemistry

Year:

1971

Language:

english

File:

PDF, 1.33 MB

english, 1971

28

Trisubstituted pyrimidines as transient receptor potential vanilloid 1 (TRPV1) antagonists with improved solubility

Xianghong Wang, Partha P. Chakrabarti, Vassil I. Ognyanov, Liping H. Pettus, Rami Tamir, Helming Tan, Phi Tang, James J.S. Treanor, Narender R. Gavva, Mark H. Norman

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2007

Language:

english

File:

PDF, 191 KB

english, 2007

29

Cis-Longipinane-2,7-dione, a sesquiterpene diketone in flowers of Tanacetum vulgare

I. Ognyanov, M. Todorova, V. Dimitrov, J. Ladd, H. Irngartinger, E. Kurda, H. Rodewald

Journal:

Year:

1983

Language:

english

File:

PDF, 345 KB

english, 1983

30

Alkaloids from vinca herbacea w.k.—X : The structures and stereochemistry of majdine and isomajdine

I. Ognyanov, B. Pyuskyulev, I. Kompiš, T. Sticzay, G. Spiteller, M. Shamma, R.J. Shine

Journal:

Year:

1968

Language:

english

File:

PDF, 530 KB

english, 1968

31

Synthesis and binding studies of an optically pure hexadeoxy-1,4,5-tris(methylenesulfonic acid) analogue of IP3

A.P. Kozikowski, V.I. Ognyanov, C. Chen, P. Kurian, F.T. Crews

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 271 KB

english, 1993

32

The isolation and structural elucidation of a novel naturally-occurring bufadienolide orthoacetate

S. Morris Kupchan, Iliya Ognyanov

Journal:

Tetrahedron Letters

Year:

1969

Language:

english

File:

PDF, 185 KB

english, 1969

33

Alkaloide aus vinca herbacea W.K. XI. Norfluorocurarin

B. Pyuskyulev, I. Ognyanov, P. Panov

Journal:

Tetrahedron Letters

Year:

1967

File:

PDF, 234 KB

1967

34

Synthesis of 5,7,11 b,12-tetrahydro-isoindolo[2,1-b]isoquinolinium methiodides and theirStevensrearrangement

Vassil I. Ognyanov, Marietta A. Haimova, Nikola M. Mollov

Journal:

Monatshefte für Chemie - Chemical Monthly

Year:

1982

Language:

english

File:

PDF, 236 KB

english, 1982

35

Determination of the stereochemistry of rotenoids by1H-NMR spectroscopy in C6D6

Ivanka Kostova, Iliya Ognyanov

Journal:

Monatshefte für Chemie - Chemical Monthly

Year:

1986

Language:

english

File:

PDF, 219 KB

english, 1986

36

Germazone, a novel tricyclic sesquiterpene ketone in the essential oil from geranium macrorrhizum L.

E. Tsankova, I. Ognyanov

Journal:

Tetrahedron Letters

Year:

1976

Language:

english

File:

PDF, 222 KB

english, 1976

37

ChemInform Abstract: Synthesis of Macrocyclic Enaminolactams by Ring Expansion Reaction of 2-Oxocyclododecane-1-carbonitrile with Diarylcarbodiimides.

W. IVANCEV, V. I. OGNYANOV, M. HESSE

Journal:

Year:

1996

File:

PDF, 29 KB

1996

38

Spektralphotometrische Bestimmung von Carbonylverbindungen über die 2,4-Dinitrophenylhydrazone

I. Ognyanov, E. Tsankova

Journal:

Analytical and Bioanalytical Chemistry

Year:

1973

Language:

english

File:

PDF, 115 KB

english, 1973

39

Die Struktur des Herbains-eines neuen 16,17-Dihydroheteroyohimban-Alkaloids ausVinca herbaceaW. K

I. Ognyanov, B. Pyuskyulev, G. Spiteller

Journal:

Monatshefte für Chemie - Chemical Monthly

Year:

1966

Language:

german

File:

PDF, 209 KB

german, 1966

40

Antifeeding activity of rotenone and some derivatives towards selected insect storage pests

Jan Nawrot, Juraj Harmatha, Ivanka Kostova, Iliya Ognyanov

Journal:

Biochemical Systematics and Ecology

Year:

1989

Language:

english

File:

PDF, 203 KB

english, 1989

41

Sesquiterpene lactones in Neurolaena lobata from Costa Rica

Milka N. Todorova, Iliya V. Ognyanov, Hernan Navas

Journal:

Biochemical Systematics and Ecology

Year:

1997

Language:

english

File:

PDF, 90 KB

english, 1997

42

Novel Vanilloid Receptor-1 Antagonists: 1. Conformationally Restricted Analogues of trans -Cinnamides †

Norman, Mark H., Zhu, Jiawang, Fotsch, Christopher, Bo, Yunxin, Chen, Ning, Chakrabarti, Partha, Doherty, Elizabeth M., Gavva, Narender R., Nishimura, Nobuko, Nixey, Thomas, Ognyanov, Vassil I., Rzasa

Journal:

Journal of Medicinal Chemistry

Year:

2007

Language:

english

File:

PDF, 484 KB

english, 2007

43

Discovery of Potent, Orally Available Vanilloid Receptor-1 Antagonists. Structure−Activity Relationship of N -Aryl Cinnamides

Doherty, Elizabeth M., Fotsch, Christopher, Bo, Yunxin, Chakrabarti, Partha P., Chen, Ning, Gavva, Narender, Han, Nianhe, Kelly, Michael G., Kincaid, John, Klionsky, Lana, Liu, Qingyian, Ognyanov, Vas

Journal:

Journal of Medicinal Chemistry

Year:

2005

Language:

english

File:

PDF, 321 KB

english, 2005

44

595 - Glycine transport inhibitors: A new class of antipsychotics?

Laurence A. Borden, Stanley C. Bell, Vassil I. Ognyanov, Vivian R. Albert, Jing Zhang, Michael De Vivo, Midori Yokoyama, Xiaping Xie, Theodore Berger, Greg Gerhardt, Jeffrey F. McKelvy

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 117 KB

english, 1997

45

Novel Vanilloid Receptor-1 Antagonists: 2. Structure−Activity Relationships of 4-Oxopyrimidines Leading to the Selection of a Clinical Candidate

Doherty, Elizabeth M., Fotsch, Christopher, Bannon, Anthony W., Bo, Yunxin, Chen, Ning, Dominguez, Celia, Falsey, James, Gavva, Narender R., Katon, Jodie, Nixey, Thomas, Ognyanov, Vassil I., Pettus, L

Journal:

Journal of Medicinal Chemistry

Year:

2007

Language:

english

File:

PDF, 280 KB

english, 2007

46

Method for assessment of fetal lung maturity

Ekserova, D., Lalchev, Z., Marinov, B., Ognyanov, K.

Journal:

Year:

1986

Language:

english

File:

PDF, 2.33 MB

english, 1986

47

Deoxygenated inositol 1,4,5-trisphosphate analogs and their interaction with metabolic enzymes. (1R,2R,4R)-Cyclohexane-1,2,4-tris(methylenesulfonate): a potent selective 5-phosphatase inhibitor

Kozikowski, Alan P., Ognyanov, Vassil I., Chen, Chinpiao, Fauq, Abdul H., Safrany, Stephen T., Wilcox, Robert A., Nahorski, Stefan R.

Journal:

Journal of Medicinal Chemistry

Year:

1993

Language:

english

File:

PDF, 465 KB

english, 1993

48

Design of Potent, Orally Available Antagonists of the Transient Receptor Potential Vanilloid 1. Structure−Activity Relationships of 2-Piperazin-1-yl-1 H -benzimidazoles

Ognyanov, Vassil I., Balan, Chenera, Bannon, Anthony W., Bo, Yunxin, Dominguez, Celia, Fotsch, Christopher, Gore, Vijay K., Klionsky, Lana, Ma, Vu V., Qian, Yi-Xin, Tamir, Rami, Wang, Xianghong, Xi, N

Journal:

Journal of Medicinal Chemistry

Year:

2006

Language:

english

File:

PDF, 739 KB

english, 2006

49

Synthesis of 1D-3-deoxy-, 1D-2,3-dideoxy-, and 1D-2,3,6-trideoxy-myo-inositol 1,4,5-trisphosphate from quebrachitol, their binding affinities, and calcium release activity

Kozikowski, A. P., Ognyanov, V. I., Fauq, A. H., Nahorski, S. R., Wilcox, R. A.

Journal:

Journal of the American Chemical Society

Year:

1993

Language:

english

File:

PDF, 739 KB

english, 1993

50

Preparation of chiral cyanohydrins by an oxynitrilase-mediated transcyanation

Ognyanov, Vassil I., Datcheva, Violeta K., Kyler, Keith S.

Journal:

Journal of the American Chemical Society

Year:

1991

Language:

english

File:

PDF, 1.21 MB

english, 1991

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