Works by Christen, Philippe

Results: 30

Extraction and analysis of different Cannabis samples by headspace solid-phase microextraction combined with gas chromatography-mass spectrometry.

Published in:

Journal of Separation Science, 2005, v. 28, n. 17, p. 2293, doi. 10.1002/jssc.200500130

By:

Yara Ilias;
Serge Rudaz;
Patrick Mathieu;
Philippe Christen

Publication type:

Article

Absolute configuration of tropane alkaloids bearing two α,β-unsaturated ester functions using electronic CD spectroscopy: Application to ( R, R)- trans-3-hydroxysenecioyloxy-6-senecioyloxytropane.

Published in:

Chirality, 2008, v. 20, n. 1, p. 20, doi. 10.1002/chir.20481

By:

Humam, Munir;
Christen, Philippe;
Muñoz, Orlando;
Hostettmann, Kurt;
Jeannerat, Damien

Publication type:

Article

NASCA-HMBC, a New NMR Methodology for the Resolution of Severely Overlapping Signals: Application to the Study of Agathisflavone.

Published in:

Phytochemical Analysis, 2012, v. 23, n. 2, p. 126, doi. 10.1002/pca.1333

By:

Bayiha Ba Njock, Gaétan;
Bartholomeusz, Trixie Ann;
Foroozandeh, Mohammadali;
Pegnyemb, Dieudonné Emmanuel;
Christen, Philippe;
Jeannerat, Damien

Publication type:

Article

Microwave-assisted extraction of the main phenolic compounds in flaxseed.

Published in:

Phytochemical Analysis, 2007, v. 18, n. 4, p. 275, doi. 10.1002/pca.973

By:

Beejmohun, Vickram;
Fliniaux, Ophélie;
Grand, Éric;
Lamblin, Frédéric;
Bensaddek, Lamine;
Christen, Philippe;
Kovensky, José;
Fliniaux, Marc-André;
Mesnard, François

Publication type:

Article

Influence of plant matrix on microwave-assisted extraction process. The case of diosgenin extracted from fenugreek ( Trigonella foenum-graecum L.).

Published in:

Phytochemical Analysis, 2007, v. 18, n. 1, p. 70, doi. 10.1002/pca.954

By:

Kaufmann, Béatrice;
Rudaz, Serge;
Cherkaoui, Samir;
Veuthey, Jean-Luc;
Christen, Philippe

Publication type:

Article

Identification of isomeric tropane alkaloids from Schizanthus grahamii by HPLC-NMR with loop storage and HPLC-UV-MS/SPE-NMR using a cryogenic flow probe.

Published in:

Phytochemical Analysis, 2006, v. 17, n. 2, p. 78, doi. 10.1002/pca.889

By:

Bieri, Stefan;
Varesio, Emmanuel;
Veuthey, Jean-Luc;
Muñoz, Orlando;
Tseng, Li-Hong;
Braumann, Ulrich;
Spraul, Manfred;
Christen, Philippe

Publication type:

Article

Recent extraction techniques for natural products: microwave-assisted extraction and pressurised solvent extraction.

Published in:

Phytochemical Analysis, 2002, v. 13, n. 2, p. 105, doi. 10.1002/pca.631

By:

Kaufmann, Béatrice;
Christen, Philippe

Publication type:

Article

Parameters affecting microwave-assisted extraction of withanolides.

Published in:

Phytochemical Analysis, 2001, v. 12, n. 5, p. 327, doi. 10.1002/pca.599

By:

Kaufmann, Béatrice;
Christen, Philippe;
Veuthey, Jean-Luc

Publication type:

Article

A novel acylated flavonol glycoside isolated from Brunfelsia grandiflora ssp. grandiflora. Structure elucidation by gradient accelerated NMR spectroscopy at 14T.

Published in:

Phytochemical Analysis, 2000, v. 11, n. 1, p. 29, doi. 10.1002/(SICI)1099-1565(200001/02)11:1<29::AID-PCA486>3.0.CO;2-K

By:

Brunner, Gerhard;
Burger, Ulrich;
Castioni, Pierre;
Kapetanidis, Ilias;
Christen, Philippe

Publication type:

Article

Supercritical fluid extraction and chromatography of artemisinin and artemisinic acid. An improved method for the analysis of Artemisia annua samples.

Published in:

Phytochemical Analysis, 1997, v. 8, n. 5, p. 223, doi. 10.1002/(SICI)1099-1565(199709/10)8:5<223::AID-PCA370>3.0.CO;2-A

By:

Kohler, Marcel;
Haerdi, Werner;
Christen, Philippe;
Veuthey, Jean-Luc

Publication type:

Article

Occurrence of circadian rhythms in hairy root cultures grown under controlled conditions.

Published in:

Biotechnology & Bioengineering, 2004, v. 88, n. 6, p. 722, doi. 10.1002/bit.20268

By:

Lanoue, Arnaud;
Shakourzadeh, Khalil;
Marison, Ian;
Laberche, Jean-Claude;
Christen, Philippe;
Sangwan-Norreel, Brigitte;
Boitel-Conti, Michèle

Publication type:

Article

Structure and Dynamic of Three Indole Alkaloids from the Campylospermum Genus (Ochnaceae).

Published in:

Helvetica Chimica Acta, 2013, v. 96, n. 7, p. 1298, doi. 10.1002/hlca.201200327

By:

Njock, Gaétan Bayiha Ba;
Bartholomeusz, Trixie Ann;
Bikobo, Dominique Ngono;
Foroozandeh, Mohammadali;
Shivapurkar, Rupali;
Christen, Philippe;
Pegnyemb, Dieudonné Emmanuel;
Jeannerat, Damien

Publication type:

Article

A new antifungal and antiprotozoal bibenzyl derivative from Gavilea lutea.

Published in:

Natural Product Research, 2018, v. 32, n. 6, p. 695, doi. 10.1080/14786419.2017.1338287

By:

Cretton, Sylvian;
Oyarzún, Alejandra;
Righi, Davide;
Sahib, Lamia;
Kaiser, Marcel;
Christen, Philippe;
Fajardo, Victor

Publication type:

Article

Optimisation of accelerated solvent extraction of cocaine and benzoylecgonine from coca leaves.

Published in:

Journal of Separation Science, 2001, v. 24, n. 10/11, p. 865, doi. 10.1002/1615-9314(20011101)24:10/11<865::AID-JSSC865>3.0.CO;2-U

By:

Brachet, Anne;
Rudaz, Serge;
Mateus, Lidia;
Christen, Philippe;
Veuthey, Jean-Luc

Publication type:

Article

Bioactive metabolites from the leaves of Withania adpressa.

Published in:

Pharmaceutical Biology, 2018, v. 56, n. 1, p. 505, doi. 10.1080/13880209.2018.1499781

By:

Ben Bakrim, Widad;
El Bouzidi, Laila;
Nuzillard, Jean-Marc;
Cretton, Sylvian;
Saraux, Noémie;
Monteillier, Aymeric;
Christen, Philippe;
Cuendet, Muriel;
Bekkouche, Khalid

Publication type:

Article

Regiospecific synthesis of 1,4,5-trisubstituted 1,2,3-triazoles via enolate-azide cycloaddition between 1,3-dicarbonyl compounds and aryl azides.

Published in:

Journal of Chemical Research, 2016, v. 40, n. 8, p. 453, doi. 10.3184/174751916X14656662266973

By:

Nelson, Ronald;
Kesternich, Víctor;
Pérez-Fehrmann, Marcia;
Jaldin, Sally;
Marcourt, Laurence;
Christen, Philippe

Publication type:

Article

Synthesis and antifungal activity of phenacyl azoles.

Published in:

Journal of Chemical Research, 2014, v. 38, n. 9, p. 549, doi. 10.3184/174751914X14107905836359

By:

Nelson, Ronald;
Kesternich, Víctor;
Pérez-Fehrmann, Marcia;
Salazar, Fernanda;
Marcourt, Laurence;
Christen, Philippe;
Godoy, Patricio

Publication type:

Article

Antiprotozoal activity of natural products from Nigerien plants used in folk medicine.

Published in:

Frontiers in Pharmacology, 2023, p. 1, doi. 10.3389/fphar.2023.1190241

By:

Kilicaslan, Ozlem Sevik;
Cretton, Sylvian;
Hausmann, Estelle;
Quirós-Guerrero, Luis;
Karimou, Soumana;
Kaiser, Marcel;
Mäser, Pascal;
Christen, Philippe;
Cuendet, Muriel

Publication type:

Article

Chirality and Numbering of Substituted Tropane Alkaloids.

Published in:

Molecules, 2011, v. 16, n. 9, p. 7199, doi. 10.3390/molecules16097199

By:

Humam, Munir;
Shoul, Tarik;
Jeannerat, Damien;
Muñoz, Orlando;
Christen, Philippe

Publication type:

Article

Chemical study and anti-inflammatory, analgesic and antioxidant activities of the leaves of Aristotelia chilensis (Mol.) Stuntz, Elaeocarpaceae.

Published in:

Journal of Pharmacy & Pharmacology, 2011, v. 63, n. 6, p. 849, doi. 10.1111/j.2042-7158.2011.01280.x

By:

Muñoz, Orlando;
Christen, Philippe;
Cretton, Sylvian;
Backhouse, Nadine;
Torres, Vanessa;
Correa, Olosmira;
Costa, Edda;
Miranda, Hugo;
Delporte, Carla

Publication type:

Article

Azepine-Indole Alkaloids From Psychotria nemorosa Modulate 5-HT<sub>2 A </sub> Receptors and Prevent in vivo Protein Toxicity in Transgenic Caenorhabditis elegans.

Published in:

Frontiers in Neuroscience, 2022, v. 16, p. 1, doi. 10.3389/fnins.2022.826289

By:

Kirchweger, Benjamin;
Klein-Junior, Luiz C.;
Pretsch, Dagmar;
Chen, Ya;
Cretton, Sylvian;
Gasper, André L.;
Heyden, Yvan Vander;
Christen, Philippe;
Kirchmair, Johannes;
Henriques, Amélia T.;
Rollinger, Judith M.

Publication type:

Article

Ultrasound-Assisted Synthesis of Substituted Chalcone-Linked 1,2,3-Triazole Derivatives as Antiproliferative Agents: In Vitro Antitumor Activity and Molecular Docking Studies.

Published in:

International Journal of Molecular Sciences, 2025, v. 26, n. 7, p. 3389, doi. 10.3390/ijms26073389

By:

Cáceres, Manuel;
Kesternich, Víctor;
Pérez-Fehrmann, Marcia;
Castroagudin, Mariña;
Nelson, Ronald;
Quezada, Víctor;
Christen, Philippe;
Castro-Alvarez, Alejandro;
Cárcamo, Juan G.

Publication type:

Article

Les plantes médicinales : un gigantesque potentiel (presque) inexploré.

Published in:

SAUSSUREA, 2018, n. 47, p. 11

By:

Christen, Philippe

Publication type:

Article

Screening and determination of sibutramine in adulterated herbal slimming supplements by HPTLC-UV densitometry.

Published in:

Food Additives & Contaminants. Part A: Chemistry, Analysis, Control, Exposure & Risk Assessment, 2014, v. 31, n. 1, p. 15, doi. 10.1080/19440049.2013.861934

By:

Mathon, Caroline;
Ankli, Anita;
Reich, Eike;
Bieri, Stefan;
Christen, Philippe

Publication type:

Article

Analysis of the neurotoxin anisatin in star anise by LC-MS/MS.

Published in:

Food Additives & Contaminants. Part A: Chemistry, Analysis, Control, Exposure & Risk Assessment, 2013, v. 30, n. 9, p. 1598, doi. 10.1080/19440049.2013.804955

By:

Mathon, Caroline;
Bongard, Benjamin;
Duret, Monique;
Ortelli, Didier;
Christen, Philippe;
Bieri, Stefan

Publication type:

Article

Survey of pyrrolizidine alkaloids in teas and herbal teas on the Swiss market using HPLC-MS/MS.

Published in:

Analytical & Bioanalytical Chemistry, 2014, v. 406, n. 28, p. 7345, doi. 10.1007/s00216-014-8142-8

By:

Mathon, Caroline;
Edder, Patrick;
Bieri, Stefan;
Christen, Philippe

Publication type:

Article

Experimental design for enantioselective separation of celiprolol by capillary electrophoresis using sulfated β-cyclodextrin.

Published in:

Electrophoresis, 1999, v. 20, n. 17, p. 3424, doi. 10.1002/(SICI)1522-2683(19991101)20:17<3424::AID-ELPS3424>3.0.CO;2-Z

By:

Daali, Youssef;
Cherkaoui, Samir;
Christen, Philippe;
Veuthey, Jean-Luc

Publication type:

Article

Capillary electrophoresis-diode array detection - electrospray mass spectrometry for the analysis of selected tropane alkaloids in plant extracts.

Published in:

Electrophoresis, 1999, v. 20, n. 17, p. 3402, doi. 10.1002/(SICI)1522-2683(19991101)20:17<3402::AID-ELPS3402>3.0.CO;2-E

By:

Mateus, Lidia;
Cherkaoui, Samir;
Christen, Philippe;
Veuthey, Jean-Luc

Publication type:

Article

Selectivity manipulation using nonaqueous capillary electrophoresis. Application to tropane alkaloids and amphetamine derivatives.

Published in:

Electrophoresis, 1998, v. 19, n. 16/17, p. 2900, doi. 10.1002/elps.1150191617

By:

Cherkaoui, Samir;
Varesio, Emmanuel;
Christen, Philippe;
Veuthey, Jean-Luc

Publication type:

Article

Withanolides from Withania adpressa.

Published in:

Helvetica Chimica Acta, 2007, v. 90, n. 2, p. 346

By:

Lalla 4;Hasna Abdeljebbar;
Munir Humam;
Philippe Christen;
Damien Jeannerat;
Bruno Vitorge;
Saaid Amzazi;
Abdelaziz Benjouad;
Kurt Hostettmann;
Khalid Bekkouche

Publication type:

Article