Christen, Philippe

 
Title Year Hits Downloads
Anti-inflammatory and antiproliferative diterpenoids from Plectranthus scutellarioides 2018 59 0
Cancer chemopreventive activity of compounds isolated from Waltheria indica 2017 120 4
Targeted Isolation of Monoterpene Indole Alkaloids from Palicourea sessilis 2017 113 0
Passive Intestinal Absorption of Representative Plant Secondary Metabolites: A Physicochemical Study 2017 189 3
Prediction of the Passive Intestinal Absorption of Medicinal Plant Extract Constituents with the Parallel Artificial Membrane Permeability Assay (PAMPA) 2016 141 3
Antifungal Quinoline Alkaloids from Waltheria indica 2016 106 0
Chemical constituents from Waltheria indica exert in vitro activity against Trypanosoma brucei and T. cruzi 2015 122 2
Reverse pharmacology for developing an anti-malarial phytomedicine. The example of Argemone mexicana 2014 182 84
Unexpected Occurrence of Caffeine in Sleep-Inducing Herbal Teas 2014 270 0
Survey of pyrrolizidine alkaloids in teas and herbal teas on the Swiss market using HPLC-MS/MS 2014 300 2
HPTLC determination of sibutramine in adulterated herbal slimming supplements 2014 243 8
Antitrypanosomal quinoline alkaloids from the roots of Waltheria indica 2014 80 1
Screening and determination of sibutramine in adulterated herbal slimming supplements by HPTLC-UV densitometry 2014 280 1
Comment on the manuscript of Muñoz M.A. et al. published in Phytochemistry Letters (2012) 5: 450–454 entitled "Absolute configuration and stereochemical analysis of 3α,6β-dibenzoyloxytropane" 2013 282 3
Analysis of the neurotoxin anisatin in star anise by LC-MS/MS 2013 293 2
Structure and Dynamic of Three Indole Alkaloids from the Campylospermum Genus (Ochnaceae) 2013 251 0
Multi-targeted screening of botanicals in food supplements by liquid chromatography with tandem mass spectrometry 2013 244 0
Plants as a Source of Therapeutic and Health Products 2012 243 1
Grahamines A–E, Cyclobutane-Centered Tropane Alkaloids from the Aerial Parts of Schizanthus grahamii 2011 253 0
Chirality and Numbering of Substituted Tropane Alkaloids 2011 294 327
Schizanthines N, O, and P, Tropane Alkaloids from the Aerial Parts of Schizanthus tricolor 2011 190 3
NASCA-HMBC, a New NMR Methodology for the Resolution of Severely Overlapping Signals: Application to the Study of Agathisflavone 2011 297 5
Spectral aliasing: a super zoom for 2D-NMR spectra. principles and applications 2010 348 591
Isomeric tropane alkaloids from the aerial parts of Schizanthus tricolor 2010 312 9
High-precision heteronuclear 2D NMR experiments using 10-ppm spectral window to resolve carbon overlap 2009 223 93
Analysis of tropane alkaloids in biological matrices 2008 246 0
Absolute configuration of tropane alkaloids bearing two α,ß-unsaturated ester functions using electronic CD spectroscopy: Application to (R,R)-trans-3-hydroxysenecioyloxy-6-senecioyloxytropane 2008 255 5
Influence of plant matrix on microwave-assisted extraction process. The case of diosgenin extracted from fenugreek (Trigonella foenum-graecum L.) 2007 267 0
Tropane alkaloids of the aerial parts of Schizanthus tricolor 2007 270 0
Withanolides from Withania adpressa 2007 364 14
Use of porous graphitic carbon column for the separation of natural isomeric tropane alkaloids by capillary LC and mass spectrometry 2006 259 3
Focused microwave-assisted extraction combined with solid-phase microextraction and gas chromatography-mass spectrometry for the selective analysis of cocaine from coca leaves 2006 246 0
Evaluation of solid-phase microextraction desorption parameters for fast GC analysis of cocaine in coca leaves 2006 228 12
Headspace solid-phase microextraction of pesticide residues in Cannabis samples 2006 268 564
Analytical discrimination of poisonous and nonpoisonous chemotypes of giant fennel (Ferula communis L.) through their biologically active and volatile fractions 2006 259 0
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 2006 260 1
Cannabis profiling : which analytical strategy to apply ? 2006 322 233
Analysis of isomeric tropane alkaloids from Schizanthus grahamii by very fast gas chromatography 2006 248 0
Cocaine distribution in wild Erythroxylum species 2006 294 0
Extraction and analysis of different Cannabis samples by headspace solid-phase microextraction combined with gas chromatography-mass spectrometry 2005 263 0
Separation of four isomeric tropane alkaloids from Schizanthus grahamii by non-aqueous capillary electrophoresis 2005 169 0
Occurrence of circadian rhythms in hairy root cultures grown under controlled conditions 2004 180 0
Analysis of cannabis material by headspace solid-phase microextraction combined with gas chromatography-mass spectrometry 2004 249 270
Rapid liquid chromatographic-mass spectrometric analysis of withanolides in crude plant extracts by use of a monolithic column 2002 283 3
Recent extraction techniques for natural products: microwave-assisted extraction and pressurised solvent extraction 2002 54 0
Focused microwave-assisted extraction of cocaine and benzoylecgonine from coca leaves 2002 269 0
Study of factors influencing pressurised solvent extraction of polar steroids from plant material : application to the recovery of withanolides 2001 365 4
Calystegine distribution in some solanaceous species 2001 280 0
Optimisation of accelerated solvent extraction of cocaine and benzoylecgonine from coca leaves 2001 477 1
5′,6′-Dehydroguiachrysine and 5′,6′-dehydroguiaflavine, two curarizing quaternary indole alkaloids from the stem bark of Strychnos guianensis 2001 38 0
Parameters affecting microwave-assisted extraction of withanolides 2001 248 2
Enantioseparation of atropine by capillary electrophoresis using sulfated beta-cyclodextrin: application to a plant extract 2000 268 2
Determination of Artemisinin in Artemisia annua L. by Off-Line Supercritical Fluid Extraction and Supercritical Fluid Chromatography Coupled to an Evaporative Light-Scattering Detector 2000 90 1
Experimental design in supercritical fluid extraction of cocaine from coca leaves 2000 267 1
A novel acylated flavonol glycoside isolated from Brunfelsia grandiflora ssp. grandiflora. Structure elucidation by gradient accelerated NMR spectroscopy at 14T 2000 61 0
Use of borate complexation for the separation of non-UV-absorbing calystegines by capillary electrophoresis 2000 268 0
Simultaneous determination of scopolamine, hyoscyamine and littorine in plants and different hairy root clones of Hyoscyamus muticus by micellar electrokinetic chromatography 2000 34 0
Quaternary indole alkaloids from the stem bark of Strychnos guianensis 2000 32 0
Application of central composite designs in the supercritical fluid extraction of tropane alkaloids in plant extracts 1999 128 57
Capillary electrophoresis-diode array detection-electrospray mass spectrometry for the analysis of selected tropane alkaloids in plant extracts 1999 237 2
Experimental design for enantioselective separation of celiprolol by capillary electrophoresis using sulfated beta-cyclodextrin 1999 264 2
Nonaqueous versus aqueous capillary electrophoresis for the dosage of N-butylscopolamine in various pharmaceutical formulations 1999 240 3
Nonaqueous capillary electrophoresis for the analysis of selected tropane alkaloids in a plant extract 1999 225 2
Validated capillary electrophoresis method for the determination of atropine and scopolamine derivatives in pharmaceutical formulations 1998 176 6
Use of a Doehlert design in optimizing the analysis of selected tropane alkaloids by micellar electrokinetic capillary chromatography 1998 338 0
Development and validation of liquid chromatography and capillary electrophoresis methods for acarbose determination in pharmaceutical tablets 1998 271 0
Capillary electrophoresis for the analysis of tropane alkaloids: pharmaceutical and phytochemical applications 1998 229 0
Selectivity manipulation using nonaqueous capillary electrophoresis. Application to tropane alkaloids and amphetamine derivatives 1998 227 1
Determination of artemisinin and artemisinic acid by capillary and packed supercritical fluid chromatography 1997 286 11
Micellar electrokinetic capillary chromatography for selected tropane alkaloid analysis in plant extract 1997 289 1
Extraction of artemisinin and artemisinic acid from Artemisia annua L. using supercritical carbon dioxide 1997 300 2
Alkaloids of erythroxylum lucidum stem-bark 1997 243 1
The evaporative light scattering detector: some applications in pharmaceutical analysis 1997 275 0
Supercritical fluid extraction and chromatography of artemisinin and artemisinic acid. An improved method for the analysis of Artemisia annua samples 1997 260 0
Alkaloids of erythroxylum monogynum root-bark 1995 33 0
An iridoid diester from valeriana officinalis var. sambucifolia hairy roots 1995 60 0
L'extraction en phase supercritique des substances d'origine végétale 1995 1404 811
Essential oils from normal and hairy roots of Valeriana officinalis var. sambucifolia 1995 38 0
Rapid high performance liquid chromatographic quantification of valepotriates in hairy root cultures of Valeriana officinalis L. var. sambucifolia Mikan 1994 57 0
Characteristics of growth and tropane alkaloid production in Hyoscyamus albus hairy roots transformed with Agrobacterium rhizogenes A4 1992 15 4
18711 3161