Stefan L. Spassov: search on Z-Library

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1

Montanin-C, A New Furanoid Diterpene from Teucrium montanum L

Malakov, Peter Y., Papanov, Georgi Y., Mollov, Nikola M., Spassov, Stefan L.

Journal:

Zeitschrift für Naturforschung B

Year:

1978

Language:

english

File:

PDF, 2.88 MB

english, 1978

2

Montanin-D, a New Furanoid Diterpene of Clerodane Type from Teucrium montanum L.

Malakov, Peter, Papanov, Georgi, Mollov, Nikola M., Spassov, Stefan L.

Journal:

Zeitschrift für Naturforschung B

Year:

1978

Language:

english

File:

PDF, 2.50 MB

english, 1978

3

ChemInform Abstract: HETEROCYCLEN MIT ISOCHINOLIN-GERUEST AUS BETA-AMINOSAEUREN 2. MITT. STEREOSPEZIFISCHE SYNTHESEN VON (+-)-6,7-DIALKOXY-3-ARYL-4-METHOXYCARBONYL-1,2,3,4-TETRAHYDRO-ISOCHINOLINEN UND IHREN DERIVATEN

HAIMOVA, MARIETTA A., SPASSOV, STEFAN L., NOVKOVA, SNEZANA I., PALAMAREVA, MARIANA D., KURTEV, BOGDAN

Journal:

Chemischer Informationsdienst. Organische Chemie

Year:

1971

Language:

german

File:

PDF, 227 KB

german, 1971

4

Irradiation of Food, Current Legislation Framework, and Detection of Irradiated Foods

Rayna Stefanova, Nikola V. Vasilev, Stefan L. Spassov

Journal:

Food Analytical Methods

Year:

2010

Language:

english

File:

PDF, 433 KB

english, 2010

5

Cyclocondensations of homophthalic anhydrides with 1-aza-1,3-dienes

Angelina Georgieva, Elena Stanoeva, Stefan Spassov, Marietta Haimova, Norbert De Kimpe, Mark Boelens, Marian Keppens, Andrejs Kemme, Anatoly Mishnev

Journal:

Year:

1995

Language:

english

File:

PDF, 763 KB

english, 1995

6

Stereochemical applications of potential energy calculations: Part V. Conformational studies of some 1,1,2-trisubstituted ethanes by the molecular mechanics method (MM2)

Petko M. Ivanov, Stefan L. Spassov, Eiji Ōsawa

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

1985

Language:

english

File:

PDF, 550 KB

english, 1985

7

Complete 1 H and 13 C NMR Chemical Shift Assignments for Some N-Polyformylated Aminoglycoside Antibiotics

Eneva, Galya I., Spassov, Stefan L., Haimova, Marietta A.

Journal:

Spectroscopy Letters

Year:

1995

Language:

english

File:

PDF, 361 KB

english, 1995

8

Optisches Drehungsvermögen und Konformation, V. Protonenresonanzspektren stereoisomerer 4.5-disubstituierter Oxazolidone-(2)

Stefan L. Spassov, Juri N. Stefanovsky, Bogdan J. Kurtev, Gabor Fodor

Journal:

European Journal of Inorganic Chemistry

Year:

1972

File:

PDF, 255 KB

1972

9

Heterocyclen mit Isochinolin-Gerüst aus β-Aminosäuren, 5. Stereochemie der 3, 4-disubstituierten 1, 2, 3, 4-Tetrahydroisochinoline

Elena Stanoeva, Stefan Spassov, Marietta Haimova, Bogdan Kurtev

Journal:

European Journal of Inorganic Chemistry

Year:

1976

File:

PDF, 498 KB

1976

10

Neo-clerodane diterpenoids from Ajuga chamaepitys

Iva M. Boneva, Bozhana P. Mikhova, Peter Y. Malakov, Georgy Y. Papanov, Helmut Duddeck, Stefan L. Spassov

Journal:

Year:

1990

Language:

english

File:

PDF, 245 KB

english, 1990

11

Mechanical ventilation restores blood gas homeostasis and diaphragm muscle strength in ketamine/medetomidineâanaesthetized rats

Wenzel, Christin, Schmidt, Johannes, Urban, Gerald, Schumann, Stefan, Spassov, Sashko Georgiev

Journal:

Experimental Physiology

Year:

2020

File:

PDF, 399 KB

2020

12

Optisches Drehungsvermögen und Konformation, VI. Protonenresonanzspektren und Konformation einiger stereoisomerer 2.3-disubstituierter Morpholine und 5-Oxo-morpholine

Stefan L. Spassov, Juri N. Stefanovsky, Bogdan J. Kurtev, Gabor Fodor

Journal:

European Journal of Inorganic Chemistry

Year:

1972

File:

PDF, 502 KB

1972

13

INTERACTION OF 1,2=ALKADIENEPHOSPHONIC DIALKYL ESTERS WITH SULFENYL CHLORIDES—REACTION PATHWAYS AND STEREOCHEMISTRY

Mondeshka, Diana M., Tancheva, Chonka N., Angelov, Christo M., Spassov, Stefan L.

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1989

Language:

english

File:

PDF, 623 KB

english, 1989

14

Complete 1H and 13C NMR assignments for apramycin, sisomicin and some N- and N,O-polyacetylated aminoglycosides

Galya I. Eneva, Stefan L. Spassov, Marietta A. Haimova, Jan Sandström

Journal:

Magnetic Resonance in Chemistry

Year:

1992

Language:

english

File:

PDF, 533 KB

english, 1992

15

Applicability of vicinal heteronuclear (13C-1H, 15N-1H, 13C-15N) coupling constants for conformational analysis of amino acids: Phenylalanine, α-aminobutyric acid and β-alanine

Bozhana P. Mikhova, Mario F. Simeonov, Stefan L. Spassov

Journal:

Magnetic Resonance in Chemistry

Year:

1985

Language:

english

File:

PDF, 335 KB

english, 1985

16

5-O-Allosylantirrinoside from Linaria species

Emilia Ilieva, Nedjalka Handjieva, Stefan Spassov, Simeon Popov

Journal:

Year:

1993

Language:

english

File:

PDF, 234 KB

english, 1993

17

Kinetic effects of carbon monoxide inhalation on tissue protection in ventilator-induced lung injury

Faller, Simone, Foeckler, Michael, Strosing, Karl M, Spassov, Sashko, Ryter, Stefan W, Buerkle, Hartmut, Loop, Torsten, Schmidt, Rene, Hoetzel, Alexander

Journal:

Laboratory Investigation

Year:

2012

Language:

english

File:

PDF, 800 KB

english, 2012

18

Stereochemical applications of potential energy calculations: Part VII. Conformational studies of some substituted ethanols by the molecular mechanics methods (MM2)

Petko M. Ivanov, Stefan L. Spassov

Journal:

Journal of Molecular Structure

Year:

1986

Language:

english

File:

PDF, 231 KB

english, 1986

19

Iridoid glycosides from Linaria species

Nedjalka V. Handjieva, Emilia I. Ilieva, Stefan L. Spassov, Simeon S. Popov, Helmut Duddeck

Journal:

Year:

1993

Language:

english

File:

PDF, 445 KB

english, 1993

20

Nuclear Magnetic Resonance Spectroscopy. Conformational Properties of Substituted 1,1-Difluorocyclohexanes

Spassov, Stefan L., Griffith, Dean L., Glazer, Edward S., Nagarajan, Kuppswamy., Roberts, John D.

Journal:

Journal of the American Chemical Society

Year:

1967

Language:

english

File:

PDF, 804 KB

english, 1967

21

Optisches Drehungsvermögen und Konformation, IV. Über die Verhältnisse bei Ringschlußreaktionen epimerer 2-Amino-1.2-diphenyl-äthanole

Juri N. Stefanovsky, Stefan L. Spassov, Bogdan J. Kurtev, Maria Balla, Lászlo Ötvös

Journal:

European Journal of Inorganic Chemistry

Year:

1969

Language:

german

File:

PDF, 559 KB

german, 1969

22

Complete 1H and 13C NMR assignment of two α-isosparteine salts by the use of two-dimensional NMR spectroscopy

Mario F. Simeonov, Stefan L. Spassov, Helmut Duddeck, Urszula Majchrzak-Kuczyńska, Jerzy Skolik

Journal:

Magnetic Resonance in Chemistry

Year:

1989

Language:

english

File:

PDF, 587 KB

english, 1989

23

Synthesis of 11H-4b, 10b-dihydro [1] benzopyrano [4,3-c] isoquinoline-6,11 (5H)-diones and 13H-6c, 12b-dihydronaphtho [1′,2′:5,6]-pyrano [4-3c] isoquinoline-8,13 (7H)-dione from homophthalic anhydride and N-(2-hydroxyarylidene) alkylamines

Angelina Georgieva, Elena Stanoeva, Katya Karamfilova, Stefan Spassov, Olyana Angelova, Marietta Haimova, Norbert De Kimpe, Mark Boelens

Journal:

Year:

1994

Language:

english

File:

PDF, 1.00 MB

english, 1994

24

Sine ventilation in lung injury models: a new perspective for lung protective ventilation

Spassov, Sashko, Wenzel, Christin, Lozano-Zahonero, Sara, Boycheva, Dimona, Streicher, Lea, Schmidt, Johannes, Schumann, Stefan

Journal:

Scientific Reports

Year:

2020

File:

PDF, 8.63 MB

2020

25

ChemInform Abstract: HETEROCYCLEN MIT ISOCHINOLIN-GERUEST AUS BETA-AMINOSAEUREN 1. MITT. SYNTH., KONFIG. UND KONFORM. VON (+-)-6,7-DIALKOXY-2-METHYL-3-ARYL-4-METHOXYCARBONYL- (UND HYDROXYMETHYL)-1,2,3,4-TETRAHYDRO-ISOCHINOLINEN

HAIMOVA, MARIETTA, PALAMAREVA, MARIANA, KURTEV, BOGDAN, NOVKOVA, SNEZANA, SPASSOV, STEFAN

Journal:

Chemischer Informationsdienst. Organische Chemie

Year:

1970

File:

PDF, 252 KB

1970

26

Heterocyclen mit Isochinolin-Gerüst aus β-Aminosäuren, 1 Synthese, Konfiguration und Konformation von (±)-6.7-Dialkoxy-2-methyl-3-aryl-4-methoxycarbonyl-(und hydroxymethyl)-1.2.3.4-tetrahydro-isochinolinen

Marietta Haimova, Mariana Palamareva, Bogdan Kurtev, Snežana Novkova, Stefan Spassov

Journal:

European Journal of Inorganic Chemistry

Year:

1970

File:

PDF, 524 KB

1970

27

Teulamifin B, a neo-clerodane diterpenoid from Teucrium lamiifolium and T. Polium

Peter Y. Malakov, Iva M. Boneva, Georgi Y. Papanov, Stefan L. Spassov

Journal:

Year:

1988

Language:

english

File:

PDF, 206 KB

english, 1988

28

Ventilation-Like Mechanical Strain Modulates the Inflammatory Response of BEAS2B Epithelial Cells

Spassov, Sashko G., Kessler, Christoph, Jost, Rebecca, Schumann, Stefan

Journal:

Oxidative Medicine & Cellular Longevity

Year:

2019

Language:

english

File:

PDF, 3.38 MB

english, 2019

29

Synthese und Konfigurationsbestimmung diastereomerer 9-Methylcarbazole

Lübomir D. Zheljazkov, Kitschka Faitondjieva, Milka Dimitrova, Stefan L. Spassov, Mariana Palamareva

Journal:

European Journal of Organic Chemistry

Year:

1979

File:

PDF, 542 KB

1979

30

A naphthodipyranodione from Gentiana asclepiadea

Gerassim M. Kitanov, Stefan L. Spassov

Journal:

Year:

1992

Language:

english

File:

PDF, 248 KB

english, 1992

31

Reactions of α-chloroimines with homophthalic anhydrides. Synthesis and molecular structure of 3,3a-dihydrofuro[3,4-c] isoquinoline-1,5(4h,9bh)-diones, furo[3′, 4′:9,9α]-8,9,16,16a-tetrahydro-1h,3h,11h-dibenzo[a,g]quinolizine-1,11-diones and related compounds

Angelina Georgieva, Elena Stanoeva, Stefan Spassov, Josef Macicek, Olyana Angelova, Marietta Haimova, Norbert De Kimpe

Journal:

Year:

1991

Language:

english

File:

PDF, 793 KB

english, 1991

32

Hydrogen Sulfide Confers Lung Protection During Mechanical Ventilation via Cyclooxygenase 2, 15-deoxy Δ12,14-Prostaglandin J2, and Peroxisome Proliferator-Activated Receptor Gamma

Spassov, Sashko G., Faller, Simone, Hummel, Matthias, Helo, Khaled, Ihle, Andreas, Ryter, Stefan W., Strosing, Karl M., Hoetzel, Alexander

Journal:

Critical Care Medicine

Year:

2017

Language:

english

File:

PDF, 299 KB

english, 2017

33

ChemInform Abstract: OPTISCHES DREHUNGSVERMOEGEN UND KONFORMATION 5. MITT. PROTONENRESONANZSPEKTREN STEREOISOMERER 4,5-DISUBSTITUIERTER OXAZOLIDONE-(2) 6. MITT. PROTONENRESONANZSPEKTREN UND KONFORMATION EINIGER STEREOISOMERER 2,3-DISUBSTITUIERTER MORPHOLI

SPASSOV, STEFAN L., STEFANOVSKY, JURI N., KURTEV, BOGDAN J., FODOR, GABOR

Journal:

Chemischer Informationsdienst

Year:

1972

File:

PDF, 112 KB

1972

34

Heterocyclen mit Isochinolin-Gerüst aus β-Aminosäuren, 2. Stereospezifische Synthesen von (±)-6.7-Dialkoxy-3-aryl-4-methoxycarbonyl-1.2.3.4-tetrahydro-isochinolinen und ihren Derivaten

Marietta A. Haimova, Stefan L. Spassov, Snežana I. Novkova, Mariana D. Palamareva, Bogdan J. Kurtev

Journal:

European Journal of Inorganic Chemistry

Year:

1971

File:

PDF, 534 KB

1971

35

Macedonine, a non-glycosidic iridoid from Galium macedonicum

Maya Mitova, Nedjalka Handjieva, Stefan Spassov, Simeon Popov

Journal:

Year:

1996

Language:

english

File:

PDF, 187 KB

english, 1996

36

Stereo effects in the chemical ionization mass spectrometry of galanthamine epimers

Christov, Roumen, Bankova, Vassya, Elenkov, Ivayio, Handjieva, Nedjalka, Spassov, Stefan, Popov, S.

Journal:

European Journal of Mass Spectrometry

Year:

1999

Language:

english

File:

PDF, 57 KB

english, 1999

37

Conformational analysis of diastereoisomeric tetraphenyl-substituted pyrrolidines

Petko M. Ivanov, Bozhanka P. Mikhova, Stefan L. Spassov

Journal:

Journal of Molecular Structure

Year:

1996

Language:

english

File:

PDF, 483 KB

english, 1996

38

Scutorientalin D, a neo-clerodane diterpenoid from Scutellaria orientalis subsp. pinnatifida

Peter Y. Malakov, Georgi Y. Papanov, Stefan L. Spassov

Journal:

Year:

1997

Language:

english

File:

PDF, 256 KB

english, 1997

39

Spektroskopische Untersuchungen und Stereochemie einiger phenylsubstituierter 1-Aryl-azetidin-2-one und Azetidin-2-thione

Stefan L. Spassov, Bisserka D. Panajotova, Mirjana W. Poneva, Alexander W. Spassov

Journal:

Zeitschrift für Chemie

Year:

1979

Language:

german

File:

PDF, 260 KB

german, 1979

40

A novel mechanical ventilator providing flow-controlled expiration for small animals

Lozano-Zahonero, Sara, Schneider, Matthias, Spassov, Sashko, Schumann, Stefan

Journal:

Laboratory Animals

Year:

2020

Language:

english

File:

PDF, 613 KB

english, 2020

41

Effect of the Structure of 1-Aza-1,3-dienes on 1,2- versus 3,4-Selectivity in Cycloaddition Reactions with Homophthalic Anhydride†

Georgieva, Angelina, Stanoeva, Elena, Topalova, Ivanka, Tchanev, Christo, Spassov, Stefan

Journal:

Journal of Chemical Research

Year:

1997

Language:

english

File:

PDF, 109 KB

english, 1997

42

Spectral Properties and Molecular Structure of 4-Aryl-3-cyano-1,1-diphenyl-2-azabutadienes

Dryanska, Veneta, Denkova, Pavleta, Shishkova, Lubka, Stoyanov, Stefan, Antonov, Liudmil, Spassov, Stefan

Journal:

Spectroscopy Letters

Year:

1996

Language:

english

File:

PDF, 364 KB

english, 1996

43

New Bioactive Chalcones in Propolis from El Salvador

Popova, Milena, Bankova, Vassya, Spassov, Stefan, Tsvetkova, Iva, Vides Silva, Mario, Tsartsarova, Maria, Naydenski, Christo

Journal:

Zeitschrift für Naturforschung C

Year:

2001

Language:

english

File:

PDF, 3.50 MB

english, 2001

44

Conformational analysis of 3-arylpropanoic acids and their methyl esters by 1H nuclear magnetic resonance spectroscopy

Spassov, Stefan L., Simova, Svetlana D.

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1978

Language:

english

File:

PDF, 252 KB

english, 1978

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