Jenett-Siems, Kristina: search on Z-Library

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1

Chemotaxonomy of the pantropical genus Merremia (Convolvulaceae) based on the distribution of tropane alkaloids

Kristina Jenett-Siems, Robert Weigl, Anke Böhm, Petra Mann, Britta Tofern-Reblin, Sonja C. Ott, Azar Ghomian, Maki Kaloga, Karsten Siems, Ludger Witte, Monika Hilker, Frank Müller, Eckart Eich

Journal:

Year:

2005

Language:

english

File:

PDF, 302 KB

english, 2005

2

Ergobalansine/Ergobalansinine, a Proline-free Peptide Type Alkaloid of the Fungal Genus Balansia is a Constituent of Ipomoea piurensis .

Jenett-Siems, Kristina, Kaloga, Macki, Eich, Eckart

Journal:

Journal of Natural Products

Year:

2004

File:

PDF, 19 KB

2004

3

ChemInform Abstract: Herbal Remedies Traditionally Used Against Malaria. Part 5. Andinermals A—C, Antiplasmodial Constituents from Andira inermis.

Carola Kraft, Kristina Jenett-Siems, Karsten Siems, Pablo N. Solis, Mahabir P. Gupta, Ulrich Bienzle, Eckart Eich

Journal:

Year:

2002

File:

PDF, 29 KB

2002

4

A dihydrochalcone derivative and further steroidal saponins from Sansevieria trifasciata Prain

Tchegnitegni, Billy T., Teponno, Rémy B., Jenett-Siems, Kristina, Melzig, Matthias F., Miyamoto, Tomofumi, Tapondjou, Léon A.

Journal:

Zeitschrift für Naturforschung C

Year:

2017

Language:

english

File:

PDF, 220 KB

english, 2017

5

Antiplasmodial activity of isoflavones from Andira inermis

Carola Kraft, Kristina Jenett-Siems, Karsten Siems, Mahabir P Gupta, Ulrich Bienzle, Eckart Eich

Journal:

Journal of Ethnopharmacology

Year:

2000

Language:

english

File:

PDF, 83 KB

english, 2000

6

Herbal Remedies Traditionally Used Against Malaria. Part 9. Sipaucins A—C, Sesquiterpenoids from Siparuna pauciflora.

Kristina Jenett-Siems, Carola Kraft, Karsten Siems, Jasmin Jakupovic, Pablo N. Solis, Mahabir P. Gupta, Ulrich Bienzle

Journal:

Year:

2003

File:

PDF, 71 KB

2003

7

Steroidal saponins from the flowers of Dioscorea bulbifera var. sativa

Tapondjou, Léon Azefack, Jenett-Siems, Kristina, Böttger, Stefan, Melzig, Matthias F.

Journal:

Year:

2013

Language:

english

File:

PDF, 515 KB

english, 2013

8

Herbal Remedies Traditionally Used Against Malaria. Part 10. Cornutins C—L, neo-Clerodane-Type Diterpenoids from Cornutia grandifolia var. intermedia.

Kristina Jenett-Siems, Inga Koehler, Carola Kraft, Karsten Siems, Pablo N. Solis, Mahabir P. Gupta, Ulrich Bienzle

Journal:

Year:

2004

File:

PDF, 106 KB

2004

9

Sipandinolide: A Butenolide Including a Novel Type of Carbon Skeleton from Siparuna andina

Jenett-Siems, Kristina, Siems, Karsten, Jakupovic, Jasmin, Solis, Pablo N., Gupta, Mahabir P., Mockenhaupt, Frank P., Bienzle, Ulrich, Eich, Eckart

Journal:

Year:

2000

Language:

english

File:

PDF, 62 KB

english, 2000

10

Cornutins C–L, neo-clerodane-type diterpenoids from Cornutia grandifolia var. intermedia

Kristina Jenett-Siems, Inga Köhler, Carola Kraft, Karsten Siems, Pablo N. Solis, Mahabir P. Gupta, Ulrich Bienzle

Journal:

Year:

2003

Language:

english

File:

PDF, 276 KB

english, 2003

11

Distribution and taxonomic significance of calystegines in the Convolvulaceae

Thomas Schimming, Britta Tofern, Petra Mann, Anuschka Richter, Kristina Jenett-Siems, Birgit Dräger, Naoki Asano, Mahabir P Gupta, Mireya D Correa, Eckart Eich

Journal:

Year:

1998

Language:

english

File:

PDF, 208 KB

english, 1998

12

Bonabiline A, a Monoterpenoid 3α-Acyloxytropane from the Roots of Bonamia spectabilis showing M 3 Receptor Antagonist Activity

Ott, Sonja, Jenett-Siems, Kristina, Pertz, Heinz, Siems, Karsten, Witte†, Ludger, Eich, Eckart

Journal:

Year:

2006

Language:

english

File:

PDF, 308 KB

english, 2006

13

ChemInform Abstract: Taraxastane-Type Triterpene Saponins Isolated from Pittosporum angustifolium Lodd.

Baecker, Christian, Jenett-Siems, Kristina, Siems, Karsten, Niedermeyer, Timo H. J., Wurster, Martina, Bodtke, Anja, Lindequist, Ulrike

Journal:

Year:

2015

File:

PDF, 17 KB

2015

14

ChemInform Abstract: Phytochemistry and Chemotaxonomy of the Convolvulaceae. Part 5. Tropane Alkaloids with a Unique Type of Acyl Moiety from Two Convolvulus Species.

Kristina Jenett-Siems, Petra Mann, Macki Kaloga, Karsten Siems, Jasmin Jakupovic, Ludger Witte, Eckart Eich

Journal:

Year:

1999

File:

PDF, 26 KB

1999

15

Aliphatic pyrrolidine amides from two tropical convolvulaceous species

Britta Tofern, Petra Mann, Macki Kaloga, Kristina Jenett-Siems, Ludger Witte, Eckart Eich

Journal:

Year:

1999

Language:

english

File:

PDF, 130 KB

english, 1999

16

Chemical Composition and Biological Activity of Paris quadrifolia L.

Jenett-Siems, Kristina, Krause, Nadin, Siems, Karsten, Jakupovic, Sven, Wallukat, Gerd, Melzig, Matthias F.

Journal:

Zeitschrift für Naturforschung C

Year:

2012

Language:

english

File:

PDF, 159 KB

english, 2012

17

Taraxastane-type triterpene saponins isolated from Pittosporum angustifolium Lodd.

Bäcker, Christian, Jenett-Siems, Kristina, Siems, Karsten, Niedermeyer, Timo H.J., Wurster, Martina, Bodtke, Anja, Lindequist, Ulrike

Journal:

Zeitschrift für Naturforschung B

Year:

2015

Language:

english

File:

PDF, 585 KB

english, 2015

18

Unusual Tropane Alkaloid Pattern in Two African Convolvulaceous Species. Phytochemistry and Chemotaxonomy of the Convolvulaceae, Part 20 [1]

Ott, Sonja C., Tofern-Reblin, Britta, Jenett-Siems, Kristina, Siems, Karsten, Müller, Frank, Hilker, Monika, Onegi, Bernardina, Witte, Ludger, Eicha, Eckart

Journal:

Zeitschrift für Naturforschung B

Year:

2007

Language:

english

File:

PDF, 66 KB

english, 2007

19

ChemInform Abstract: 3-O-Sulfo-triterpenoid Saponins (I) from Gypsophila trichotoma Wend.

Ilina Krasteva, Kristina Jenett-Siems, Maki Kaloga, Stefan Nikolov

Journal:

Year:

2009

File:

PDF, 17 KB

2009

20

Ipobscurines C and D: macrolactam-type indole alkaloids from the seeds of Ipomoea obscura

Kristina Jenett-Siems, Robert Weigl, Macki Kaloga, Jutta Schulz, Eckart Eich

Journal:

Year:

2003

Language:

english

File:

PDF, 177 KB

english, 2003

21

Polyphenolic compounds from the leaves of Pittosporum angustifolium

Bäcker, Christian, Jenett-Siems, Kristina, Bodtke, Anja, Lindequist, Ulrike

Journal:

Biochemical Systematics and Ecology

Year:

2014

Language:

english

File:

PDF, 312 KB

english, 2014

22

Herbal Remedies Traditionally Used Against Malaria in Ghana: Bioassay-Guided Fractionation of Microglossa pyrifolia (Asteraceae)

Köhler, Inga, Jenett-Siems, Kristina, Kraft, Carola, Siems, Karsten, Abbiw, Daniel, Bienzle, Ulrich, Eich, Eckart

Journal:

Zeitschrift für Naturforschung C

Year:

2002

Language:

english

File:

PDF, 126 KB

english, 2002

23

In vitro antiplasmodial evaluation of medicinal plants from Zimbabwe

Carola Kraft, Kristina Jenett-Siems, Karsten Siems, Jasmin Jakupovic, Steven Mavi, Ulrich Bienzle, Eckart Eich

Journal:

Phytotherapy Research

Year:

2003

Language:

english

File:

PDF, 119 KB

english, 2003

24

Triterpenoids in Gypsophila trichotoma Wend.

Maya Yotova, Ilina Krasteva, Kristina Jenett-Siems, Petranka Zdraveva, Stefan Nikolov

Journal:

Phytochemistry Letters

Year:

2012

Language:

english

File:

PDF, 251 KB

english, 2012

25

A New Sulfated Triterpene Saponin from Gypsophila trichotoma

Krasteva, Ilina, Yotova, Maya, Jenett-Siems, Kristina, Zdraveva, Petranka, Nikolov, Stefan

Journal:

Natural Product Communications

Year:

2013

Language:

english

File:

PDF, 282 KB

english, 2013

26

Extracts of Cynomorium songaricum protect SK-N-SH human neuroblastoma cells against staurosporine-induced apoptosis potentially through their radical scavenging activity

Yi Lu, Qingguo Wang, Matthias F. Melzig, Kristina Jenett-Siems

Journal:

Phytotherapy Research

Year:

2009

Language:

english

File:

PDF, 206 KB

english, 2009

27

Tropane alkaloids with a unique type of acyl moiety from two convolvulus species

Kristina Jenett-Siems, Petra Mann, Macki Kaloga, Karsten Siems, Jasmin Jakupovic, Ludger Witte, Eckart Eich

Journal:

Year:

1998

Language:

english

File:

PDF, 138 KB

english, 1998

28

Major Constituents and Cytotoxic Effects of Ajuga chamaecistus ssp. tomentella

Sadati, Nargess, Jenett-Siems, Kristina, Siems, Karsten, Ardekania, Mohammad Reza Shams, Hadjiakhoondi, Abbas, Akbarzadeh, Tahmineh, Ostad, Seyed Nasser, Khanavi, Mahnaz

Journal:

Zeitschrift für Naturforschung C

Year:

2012

Language:

english

File:

PDF, 203 KB

english, 2012

29

Andirol A and B, Two Unique 6-Hydroxymethylpterocarpenes from Andira inermis§

Kraft, Carola, Jenett-Siems, Kristina, Köhler, Inga, Siems, Karsten, Abbiw, Daniel, Bienzle, Ulrich, Eicha, Eckart

Journal:

Zeitschrift für Naturforschung C

Year:

2002

Language:

english

File:

PDF, 236 KB

english, 2002

30

Integracide K: A New Tetracyclic Triterpenoid from Desmodium uncinatum (Jacq.) DC. (Fabaceae)

Tsafack, Borice Tapondjou, Ponou, Beaudelaire Kemvoufo, Teponno, Rémy Bertrand, Nono, Raymond Ngansop, Jenett-Siems, Kristina, Melzig, Matthias F., Park, Hee Juhn, Tapondjou, Léon Azefack

Journal:

Natural Product Sciences

Year:

2017

Language:

english

File:

PDF, 408 KB

english, 2017

31

Phenylethanoid glycosides from Stachytarpheta cayennensis (Rich.) Vahl, Verbenaceae, a traditional antimalarial medicinal plant

Froelich, Sonja, Gupta, Mahabir P., Siems, Karsten, Jenett-Siems, Kristina

Journal:

Revista Brasileira de Farmacognosia

Year:

2008

Language:

english

File:

PDF, 315 KB

english, 2008

32

A convenient method for saponin isolation in tumour therapy

Alexander Weng, Kristina Jenett-Siems, Peter Schmieder, Diana Bachran, Christopher Bachran, Cornelia Görick, Mayank Thakur, Hendrik Fuchs, Matthias F. Melzig

Journal:

Journal of Chromatography B

Year:

2010

Language:

english

File:

PDF, 454 KB

english, 2010

33

In vitro Antiplasmodial Activity of 4-Phenylcoumarins from Exostema mexicanum

Köhler, Inga, Jenett-Siems, Kristina, Mockenhaupt, Frank P., Siems, Karsten, Jakupovic, Jasmin, González, Julio C., A., Marco, Ibarra, Ricardo A., Berendsohn, Walter G., Bienzle, Ulrich, Eich, Eckart

Journal:

Year:

2001

Language:

english

File:

PDF, 192 KB

english, 2001

34

In vitro antiplasmodial activities of semisynthetic N,N′-spacer-linked oligomeric ergolines

Kristina Jenett-Siems, Inga Köhler, Carola Kraft, Heinz H Pertz, Vladimı́r Křen, Anna Fišerová, Marek Kuzma, Jitka Ulrichová, Ulrich Bienzle, Eckart Eich

Journal:

Bioorganic & Medicinal Chemistry

Year:

2004

Language:

english

File:

PDF, 246 KB

english, 2004

35

Andinermals A–C, antiplasmodial constituents from Andira inermis

Carola Kraft, Kristina Jenett-Siems, Karsten Siems, Pablo N Solis, Mahabir P Gupta, Ulrich Bienzle, Eckart Eich

Journal:

Year:

2001

Language:

english

File:

PDF, 142 KB

english, 2001

36

Iseluxine: A Novel Isoquinolinone Alkaloid from Isei a luxurians§

Schimming, Thomas, Jenett-Siems, Kristina, Siems, Karsten, Witte, Ludger, Gupta, Mahabir P., Eich, Eckart

Journal:

Zeitschrift für Naturforschung C

Year:

2000

Language:

english

File:

PDF, 2.59 MB

english, 2000

37

ChemInform Abstract: Phytochemistry and Chemotaxonomy of the Convolvulaceae. Part 10. Bonaspectins and Neobonaspectins, First Sesquilignans and Sesquineolignans from a Convolvulaceous Species.

Britta Tofern, Kristina Jenett-Siems, Karsten Siems, Jasmin Jakupovic, Eckart Eich

Journal:

Year:

2000

File:

PDF, 24 KB

2000

38

Ipangulines, the first pyrrolizidine alkaloids from the convolvulaceae

Kristina Jenett-Siems, Macki Kaloga, Eckart Eich

Journal:

Year:

1993

Language:

english

File:

PDF, 274 KB

english, 1993

39

Ipangulines and minalobines, chemotaxonomic markers of the infrageneric Ipomoea taxon subgenus Quamoclit, section Mina

Kristina Jenett-Siems, Sonja C. Ott, Thomas Schimming, Karsten Siems, Frank Müller, Monika Hilker, Ludger Witte, Thomas Hartmann, Daniel F. Austin, Eckart Eich

Journal:

Year:

2005

Language:

english

File:

PDF, 168 KB

english, 2005

40

Pyrrolizidine alkaloids of Ipomoea hederifolia and related species

Kristina Jenett-Siems, Thomas Schimming, Macki Kaloga, Eckart Eich, Karsten Siems, Mahabir P. Gupta, Ludger Witte, Thomas Hartmann

Journal:

Year:

1998

Language:

english

File:

PDF, 649 KB

english, 1998

41

Sipaucins A–C, sesquiterpenoids from Siparuna pauciflora

Kristina Jenett-Siems, Carola Kraft, Karsten Siems, Jasmin Jakupovic, Pablo N. Solis, Mahabir P. Gupta, Ulrich Bienzle

Journal:

Year:

2003

Language:

english

File:

PDF, 175 KB

english, 2003

42

Plants traditionally used against malaria: phytochemical and pharmacological investigation of Momordica foetida

Froelich, Sonja, Onegi, Bernadina, Kakooko, Adrian, Siems, Karsten, Schubert, Carola, Jenett-Siems, Kristina

Journal:

Revista Brasileira de Farmacognosia

Year:

2007

Language:

english

File:

PDF, 224 KB

english, 2007

43

Antiplasmodial activity of naphthoquinones and one anthraquinone from Stereospermum kunthianum

Bernardina Onegi, Carola Kraft, Inga Köhler, Marion Freund, Kristina Jenett-Siems, Karsten Siems, Gabriele Beyer, Matthias F Melzig, Ulrich Bienzle, Eckart Eich

Journal:

Year:

2002

Language:

english

File:

PDF, 126 KB

english, 2002

44

Cytotoxicity of gypsogenic acid isolated from Gypsophila trichotoma

Krasteva, Ilina, Yotova, Maya, Yosifov, Deyan, Benbassat, Niko, Jenett-Siems, Kristina, Konstantinov, Spiro

Journal:

Pharmacognosy Magazine

Year:

2014

Language:

english

File:

PDF, 854 KB

english, 2014

45

3-O-Sulfo-triterpenoid Saponins from Gypsophila trichotoma Wend

Krasteva, Ilina, Jenett-Siems, Kristina, Kaloga, Maki, Nikolov, Stefan

Journal:

Zeitschrift für Naturforschung B

Year:

2009

Language:

english

File:

PDF, 92 KB

english, 2009

46

Antiplasmodial activity of sesquilignans and sesquineolignans from Bonamia spectabilis

Carola Kraft, Kristina Jenett-Siems, Inga Köhler, Britta Tofern-Reblin, Karsten Siems, Ulrich Bienzle, Eckart Eich

Journal:

Year:

2002

Language:

english

File:

PDF, 149 KB

english, 2002

47

New Mono- and Bisdesmosidic Triterpene Glycosides from Pittosporum angustifolium Lodd

Bäcker, Christian, Jenett-Siems, Kristina, Siems, Karsten, Wurster, Martina, Bodtke, Anja, Niedermeyer, Timo H. J., Lindequist, Ulrike

Journal:

Zeitschrift für Naturforschung B

Year:

2014

Language:

english

File:

PDF, 290 KB

english, 2014

48

Bonabiline A, a Monoterpenoid 3α-Acyloxytropane from the Roots of Bonamia spectabilis showing M3 Receptor Antagonist Activity

Ott, Sonja, Jenett-Siems, Kristina, Pertz, Heinz, Siems, Karsten, Witte, Ludger, Eich, Eckart

Journal:

Year:

2013

File:

PDF, 38 KB

2013

49

Effects of extracts and compounds from Tricholoma populinum Lange on degranulation and IL-2/IL-8 secretion of immune cells

Merdivan, Simon, Jenett-Siems, Kristina, Siems, Karsten, Niedermeyer, Timo H.J., Schultze, Nadin, Steinborn, Carmen, Gründemann, Carsten, Lindequist, Ulrike

Journal:

Zeitschrift für Naturforschung C

Year:

2017

Language:

english

File:

PDF, 434 KB

english, 2017

50

Flavonol Glycosides and Cytotoxic Steroidal Saponins from Furcraea Tuberosa (Agavaceae)

Tapondjou, Leon A., Jenett-Siems, Kristina, Siems, Karsten, Weng, Alexander, Melzig, Matthias F.

Journal:

Natural Product Communications

Year:

2017

Language:

english

File:

PDF, 278 KB

english, 2017

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