M. Begtrup

S. Frokjaer, F. Jørgensen, B. Brodin, 2006, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

GIAO AB INITIO CALCULATIONS OF NUCLEAR SHIELDINGS OF MONOSUBSTITUTED BENZENES AND N-SUBSTITUTED PYRAZOLES

M. Yáñez, J. Elguero, O. Mó, 1998 .

(13)C-NMR SPECTRA OF PHENYL-SUBSTITUTED AZOLES, A CONFORMATIONAL STUDY

C. Swahn, M. Begtrup, Folke Malmström, 1974 .

Porphyrins with four azole substituents in meso positions. Part 2. X-ray crystal structure of meso-tetrakis {1-[2-(trimethylsilyl)ethoxymethyl]pyrazol-5-yl}-porphyrin at 200 K

J. Elguero, C. Foces-Foces, M. Begtrup, 1996 .

N-Alkoxypyrazoles as biomimetics for the alkoxyphenyl group in tamoxifen.

A. Lykkesfeldt, M. Barfoed, B. Gissel, 2003, Bioorganic & medicinal chemistry.

Synthesis of N-alkylated amino acids using fluorous-tagged hydroxylamines

J. Kristensen, M. Begtrup, S. D. Nielsen, 2011 .

Effect of N‐substituents on the 13C NMR parameters of azoles

P. Camps, J. Elguero, R. Faure, 1988 .

Synthesis of 2-Substituted 1-Hydroxyimidazoles through Directed Lithiation.

S. Morel, M. Begtrup, P. Vedsø, 1998, The Journal of organic chemistry.

Affinity and translocation relationships via hPEPT1 of H-X aa-Ser-OH dipeptides: evaluation of H-Phe-Ser-OH as a pro-moiety for ibuprofen and benzoic acid prodrugs.

B. Brodin, C. Nielsen, M. Begtrup, 2011, European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V.

Pyrimidine and nucleoside γ-esters of l-Glu-Sar: Synthesis, stability and interaction with hPEPT1

B. Brodin, B. Steffansen, M. Begtrup, 2005 .

Parallel solid-phase synthesis of disubstituted (5-biphenyltetrazolyl) hydantoins and thiohydantoins targeting the growth hormone secretagogue receptor.

K. Bondensgaard, M. Ankersen, B. S. Hansen, 2004, Bioorganic & medicinal chemistry letters.

Evaluation of phenyl carbamates of ethyl diamines as cyclization-activated prodrug forms for protecting phenols against first-bass metabolism

M. Begtrup, N. Mørk, K. Thomsen, 1994 .

The tandem chain extension aldol reaction used for synthesis of ketomethylene tripeptidomimetics targeting hPEPT1.

C. Nielsen, B. Steffansen, M. Begtrup, 2011, Bioorganic & medicinal chemistry letters.

Halogenation of pyrazoloquinolines and pyrazoloisoquinolines. Theoretical analysis of the regioreactivity and cross-coupling of 3-halogen derivatives

T. Liljefors, J. Greenwood, M. Begtrup, 2001 .

Improving the nicotinic pharmacophore with a series of (Isoxazole)methylene-1-azacyclic compounds: synthesis, structure-activity relationship, and molecular modeling.

I. Pettersson, K. Rimvall, P. Olesen, 1999, Journal of medicinal chemistry.

Prodrugs of purine and pyrimidine analogues for the intestinal di/tri-peptide transporter PepT1: affinity for hPepT1 in Caco-2 cells, drug release in aqueous media and in vitro metabolism.

S. Frokjaer, B. Brodin, C. Nielsen, 2003, Journal of controlled release : official journal of the Controlled Release Society.

Convergent synthesis of 6-substituted phenanthridines via anionic ring closure.

J. Kristensen, M. Begtrup, P. Vedsø, 2002, Organic letters.

Synthesis of Arylglycines by Reaction of Diethyl N-Boc-iminomalonate with Organomagnesium Reagents

M. Begtrup, P. Calí, 2004 .

Introduction of substituents into 5‐membered aza‐heteroaromatics

M. Begtrup, 1989 .

3-Substituted 1,2,3-Triazole-1-Oxides. Preparation and Reactions.

E. Pedersen, M. Begtrup, R. Sandberg, 1987 .

Cyclization of N-formyl- and N-thioformyl-sarcosine-N-methylthioamide into methylaminothiazolium and anhydro-mercaptoimidazolium hydroxide derivatives

M. Begtrup, 1979 .

Azolium anions and their reaction with electrophilic reagents

M. Begtrup, 1975 .

Reactions between Azolium Salts and Nucleophilic Reagents. II. Bromo-1,2,3-triazolium Salts and Sodium Hydroxide.

L. Ehrenberg, K. Waltersson, M. Begtrup, 1971 .

Reactions between Azolium Salts and Nucleophilic Reagents. I. Bromo-1,2,3-Triazolium Salts as Brominating Reagents.

A. Balaban, D. Heinegård, P. Kristensen, 1969 .

Application of (2-cyanoaryl)arylacetonitriles in cyclization and annulation reactions. Preparation of 3-arylindans, 4-aryl-3,4-dihydronaphthalenes, 4-arylisoquinolines, 1-aminonaphthalenes, and heterocyclic analogues

M. Begtrup, M. Sommer, K. P. Boegesoe, 1990 .

An unexpected ring opening–ring closure reaction of 5-azido-4-formylpyrazole

P. Molina, J. Becher, M. Begtrup, 1988 .

Electrophilic and nucleophilic substitution in the triazole N-oxides and N-methoxytriazolium salts: preparation of substituted 1,2,3-triazoles

J. Holm, M. Begtrup, 1981 .

Reactions between Azolium Salts and Nucleophilic Reagents. III. Base-catalyzed Interhalogenation and cine-Substitution of Bromo-pyrazolium Salts with Formation of 1,2-Dimethyl-pyrazol-4-in-3-ones.

N. A. Sörensen, E. Sunde, S. Liaaen-Jensen, 1970 .

A General Descriotin of the Reactivity of Heteroaromatic Compounds Based on the Donor-Acceptor Concept

M. Begtrup, 1992 .

Synthesis of 1-hydroxy-substituted pyrazolo[3,4-c]- and pyrazolo[4, 3-c]quinolines and -isoquinolines from 4- and 5-aryl-substituted 1-benzyloxypyrazoles.

M. Begtrup, P. Vedsø, J. Pawlas, 2000, The Journal of organic chemistry.

Regioselective functionalization of 2-(2′-fluorophenyl)-3-cyanopyridine and its cyclization to benzo[h]-1,6-naphthyridines

M. Begtrup, T. Cailly, 2010 .

O‐p‐Toluenesulfonylhydroxylamine

M. Begtrup, 2004 .

Synthesis of analogs of L-valacyclovir and determination of their substrate activity for the oligopeptide transporter in Caco-2 cells.

R. Borchardt, Chao-pin Lee, Weiqing Chen, 2002, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

Synthesis of ortho substituted arylboronic esters by in situ trapping of unstable lithio intermediates.

J. Kristensen, M. Begtrup, P. Vedsø, 2001, Organic letters.

The Methylation of Some 5-Hydroxy-1,2,3-triazoles.

A. Kallner, M. Begtrup, C. Pedersen, 1965 .

Synthesis of 5-Substituted 1-Hydroxy-1,2,3-triazoles through Directed Lithiation of 1-(Benzyloxy)-1,2,3-triazole

J. Felding, M. Begtrup, P. Vedsø, 1997 .

Synthesis of imidazole N-oxides in solvent-free conditions

J. Alcázar, M. Begtrup, A. Hoz, 1996 .

Synthesis of azaphenanthridines via anionic ring closure

J. Kristensen, M. Begtrup, Henriette M. Hansen, 2005 .

Synthesis of pentacyclic 13-azadibenzo[a,de]anthracenes via anionic cascade ring closure.

J. Kristensen, M. Begtrup, P. Vedsø, 2003, The Journal of organic chemistry.

Synthesis of novel azaxanthones derived from N-hydroxyazoles

J. Kristensen, M. Begtrup, P. Vedsø, 2002 .

Synthesis and application of a new fluorous-tagged ammonia equivalent.

J. Kristensen, M. Begtrup, S. D. Nielsen, 2010, Chemistry.

Synthesis of tertiary benzamides via Pd-catalyzed coupling of arylboronic esters and carbamoyl chlorides.

S. Kelleher, J. Kristensen, M. Begtrup, 2005, The Journal of organic chemistry.

Solid-phase directed ortho-lithiation and the preparation of a phthalide library.

T. Hoeg-Jensen, M. Begtrup, P. Vedsø, 2001, Journal of combinatorial chemistry.

13C chemical shifts and 1H‐13C coupling constants of N‐phenyl‐, N‐p‐fluorophenyl‐ and N‐o‐nitrophenylpyrazoles

W. Meutermans, J. Elguero, R. Claramunt, 1992 .

Synthesis of (R)-(–)-2-Fluoronorapomorphine — A Precursor for the Synthesis of (R)-(–)-2-Fluoro-N-[11C]propylnorapomorphine for Evaluation as a Dopamine D2 Agonist Ligand for PET Investigations

J. Kristensen, M. Begtrup, N. Gillings, 2005 .

13C NMR of pyrazoles

J. Elguero, C. Cativiela, M. Begtrup, 1993 .

Preparation of N-hydroxyazoles by oxidation of azoles

M. Begtrup, P. Vedsø, 1995 .

Resin-bound triaryl bismuthanes and bismuth diacetates: novel multidirectional linkers and novel resin-bound arylation reagents.

M. Begtrup, T. Ruhland, L. K. Rasmussen, 2004, The Journal of organic chemistry.

Synthesis of 4-Substituted 1-(Benzyloxy)pyrazoles via Iodine−Magnesium Exchange of 1-(Benzyloxy)-4-iodopyrazole

L. Sander, J. Felding, J. Kristensen, 1999 .

Versatile and inexpensive screw-cap vessels for medium pressure reactions and processes run under an inert atmosphere

M. Begtrup, 1987 .

Sequential functionalization of pyrazole 1-oxides via regioselective metalation: synthesis of 3,4,5-trisubstituted 1-hydroxypyrazoles.

M. Begtrup, P. Vedsø, J. Eskildsen, 2002, The Journal of organic chemistry.

Alkylation, acylation and silylation of azoles

U. Edlund, P. Larsen, M. Begtrup, 1990 .

Mass spectrometry of pyrazolium salts

H. Egsgaard, M. Begtrup, E. Larsen, 1981 .

Tris(pyrazol-1-yl)methane-rhodium(I) and -iridium(I) complexes; cyrstal structure of [Rh(COD)(tpzm)][RhCl2(COD)]·3CHCl3

J. Elguero, Miguel A. Esteruelas, L. Oro, 1988 .

Annulated 1,2,3-triazoles, I. Synthesis of 8-Azapurin-6-ones and 8-Azapurin-6-imines from Ethyl 5-Acetylamino-1,2,3-triazole-4-carboxylates

E. Pedersen, F. Nielsen, M. Begtrup, 1984 .

Reactions between azolium anions and electrophilic reagents. Part II. Direct thiation of 1,2-disubstituted pyrazolium anions with sulphur

M. Begtrup, 1975 .

1H- and 13C-NMR Spectra of Phenyl-substituted Azole Derivatives. II. A Conformational Study.

B. Mannervik, M. Begtrup, A. Taticchi, 1974 .

Azolides. Part 12. Carbon-13 nuclear magnetic resonance study of N-methyl and N-acetyl derivatives of azoles and benzazoles

J. Elguero, R. Claramunt, M. Begtrup, 1978 .

The tert-butyl sulfoximine group as an effective ortho-director of lithiation: ortho-metallated S-(tert-butyl)-S-phenylsulfoximines

J. Bourguignon, M. Begtrup, V. Levacher, 1999 .

VIII. Mesoionic Thiazoles

C. Roussel, M. Begtrup, 2008 .

A new diene, 2-methoxy-1,3-pentadiene-5-ol. Synthesis and intramolecular diels-alder reactions

J. Becher, M. Begtrup, T. Jørgensen, 1992 .

Regioselectivity in lithiation of 1-methylpyrazole: experimental, density functional theory and multinuclear NMR study.

T. Liljefors, J. Jaroszewski, P. Norrby, 2006, Organic & biomolecular chemistry.

Halogen dance in pyrazole 1-oxides: synthesis of pyrazolo[3,4-c]quinoline 1-oxides

M. Begtrup, P. Vedsø, N. Østergaard, 2002 .

Synthesis and Application of a New Fluorous‐Tagged Ammonia Equivalent.

J. Kristensen, M. Begtrup, G. Smith, 2010 .

Convergent synthesis of 3-arylated 1-hydroxypyrazoles via 3-metalated pyrazole-1-oxides.

J. Kristensen, M. Begtrup, P. Vedsø, 2001, The Journal of organic chemistry.

The synthesis of novel GABA uptake inhibitors. Part 2. Synthesis of 5-hydroxytiagabine, a human metabolite of the GABA reuptake inhibitor tiagabine

Elaine C. Lee, H. Thøgersen, M. Chorghade, 1994 .

Synthesis of imidazole 1-oxides from 1,2-diimines

J. Alcázar, M. Begtrup, A. Hoz, 1995 .

Hemiesters of aliphatic dicarboxylic acids as cyclization-activated prodrug forms for protecting phenols against first-pass metabolism

M. Begtrup, K. Fredholt, N. Mørk, 1995 .

Synthesis and binding studies of 2-arylapomorphines.

B. Roth, G. Knudsen, J. Kristensen, 2005, Organic & biomolecular chemistry.

Studies on Methylated 1,2,3-Triazoles. IV. Preparation of 1-Methyl-4-hydroxy-1,2,3-triazole.

L. Ehrenberg, R. Blinc, S. Pausak, 1967 .

Studies on Methylated 1,2,3-Triazoles. III.

L. Ehrenberg, R. Blinc, S. Pausak, 1966 .

4.18 – Oxatriazoles

M. Begtrup, 1996 .

4-(1,2,3-triazolio)sulfides, a new mesoionic system

M. Begtrup, 1971 .

Alkylation, Acylation and Silylation of Azoles.

P. Larsen, M. Begtrup, 1991 .

ynthesis of analogs of L-valacyclovir and determination of their substrate activity for the oligopeptide transporter in Caco-2 cells

Chao-pin Lee, Weiqing Chen, Philip L. Smith, 2002 .

13 C–H coupling constants as a tool in tautomerism studies of 1,2,3-triazole, 1,2,4-triazole, and tetrazole

M. Begtrup, 1976 .

Tritium labelling of bromhexine via amide reduction with LiB3H4

M. Begtrup, L. Martiny, Uffe S. Larsen, 2005 .

The respective N-hydroxypyrazole analogues of the classical glutamate receptor ligands ibotenic acid and (RS)-2-amino-2-(3-hydroxy-5-methyl-4-isoxazolyl)acetic acid.

J. Greenwood, K. Hansen, R. Clausen, 2004, European journal of pharmacology.

Syntheses of aza-analogous iso-ergoline scaffolds using carbene mediated C–H insertion

J. Kehler, K. Frydenvang, M. Begtrup, 2010 .

Synthesis of 2,3-substituted thienylboronic acids and esters.

C. Christophersen, M. Begtrup, P. Vedsø, 2003, The Journal of organic chemistry.

Synthesis of 2,3‐Substituted Thienylboronic Acids and Esters.

C. Christophersen, M. Begtrup, P. Vedsoe, 2004 .

Model prodrugs designed for the intestinal peptide transporter. A synthetic approach for coupling of hydroxy-containing compounds to dipeptides.

C. Nielsen, B. Steffansen, M. Begtrup, 2001, European Journal of Pharmaceutical Sciences.

Application of enzymatically stable dipeptides for enhancement of intestinal permeability. Synthesis and in vitro evaluation of dipeptide-coupled compounds.

M. Taub, M. Begtrup, P. Jakobsen, 2001, Bioorganic & medicinal chemistry.

Radiosynthesis and in vivo evaluation of a series of substituted 11C-phenethylamines as 5-HT2A agonist PET tracers

Anders Ettrup, Nic Gillings, Matthias M. Herth, 2011, European Journal of Nuclear Medicine and Molecular Imaging.

Novel 1-hydroxyazole bioisosteres of glutamic acid. Synthesis, protolytic properties, and pharmacology.

J. Greenwood, P. Krogsgaard‐Larsen, S. Morel, 2002, Journal of Medicinal Chemistry.

Synthesis of 4-hydroxylamino-1-azabuta-1,3-dienes and their cyclization to 2-substituted pyrazole 1-oxides

J. Alcázar, M. Begtrup, A. Hoz, 1995 .

Radiosynthesis and ex vivo evaluation of (R)-(-)-2-chloro-N-[1-11C-propyl]n-propylnorapomorphine.

Alan A. Wilson, G. Knudsen, P. McCormick, 2010, Nuclear medicine and biology.

Synthesis, theoretical and structural analyses, and enantiopharmacology of 3-carboxy homologs of AMPA.

J. Greenwood, P. Krogsgaard‐Larsen, H. Bräuner‐Osborne, 2004, Chirality.

Regioselective Introduction of Electrophiles in the 4-Position of 1-Hydroxypyrazole via Bromine-Lithium Exchange.

M. Begtrup, P. Vedsø, T. Balle, 1999, The Journal of organic chemistry.

Regioselective Introduction of Electrophiles in the 4-Position of 1-Hydroxypyrazole via Bromine—Lithium Exchange.

M. Begtrup, T. Balle, P. Vedsoe, 1999 .

Radiosynthesis and Evaluation of 11C-CIMBI-5 as a 5-HT2A Receptor Agonist Radioligand for PET

Anders Ettrup, Nic Gillings, Gitte M. Knudsen, 2010, The Journal of Nuclear Medicine.

Involvement of Y5 receptors in neuropeptide Y agonist-induced analgesic-like effect in the rat hot plate test

T. Bolwig, G. Wörtwein, M. Olesen, 2007, Brain Research.

The N-vinyl group as a protection group of the preparation of 3(5)-substituted pyrazoles via bromine–lithium exchange

M. Begtrup, J. E. Tønder, B. Iddon, 2007 .

The N-Vinyl Group as a Protection Group of the Preparation of 3(5)-Substituted Pyrazoles via Bromine—Lithium Exchange.

M. Begtrup, B. Iddon, M. Hosseini, 2007 .

Preparation of 5-Acyl- and 5-Aryl-Substituted 1-(Benzyloxy)pyrazoles via Directed Ortho-Lithiation/Transmetalation and Palladium Catalyzed Cross-Coupling

J. Kristensen, M. Begtrup, P. Vedsø, 1998 .

SYNTHESIS OF 5-SUBSTITUTED 1-HYDROXYPYRAZOLES THROUGH DIRECTED LITHIATION OF 1-(BENZYLOXY)PYRAZOLE

M. Begtrup, P. Vedsø, 1995 .

Palladium-Catalyzed Arylation and Acylation of 1-Benzyloxy-1,2,3-triazole Through a Directed Ortho Lithiation-Transmetalation Strategy

J. Felding, J. Kristensen, M. Begtrup, 1998 .

Hydridre affinities of organic cations in solution

S. Christensen, M. Sundberg, V. Parker, 1992 .

New methods for the introduction of substitutents into thiazoles

P. Krogsgaard‐Larsen, Y. Stenstrøm, S. Grundvig, 1992 .

A one-pot access to 6-substituted phenanthridines from fluoroarenes and nitriles via 1,2-arynes.

M. Begtrup, J. Pawlas, 2002, Organic letters.

Synthesis of novel hapten derivatives of 1alpha,25-dihydroxy-vitamin D3 and its 20-epi analogue.

F. Björkling, M. Begtrup, E. Binderup, 2003, The Journal of organic chemistry.

Selective, centrally acting serotonin 5-HT2 antagonists. 2. Substituted 3-(4-fluorophenyl)-1H-indoles.

J. Arnt, M. Begtrup, K. Andersen, 1992, Journal of medicinal chemistry.

Reactions Between Azolium Salts and Nucleophilic Reagents. VIII. The Preparation and Properties of 1,3-Disubstituted 4-(1,2,3-Triazolio)sulfides.

S. Svensson, H. A. Øye, M. Begtrup, 1972 .

Design, Synthesis, and Evaluation of Tripeptidic Promoieties Targeting the Intestinal Peptide Transporter hPEPT1

C. Nielsen, J. Christensen, B. Steffansen, 2007, ChemMedChem.

An improved nicotinic pharmacophore and a stereoselective CoMFA-model for nicotinic agonists acting at the central nicotinic acetylcholine receptors labelled by [3H]-N-methylcarbamylcholine

Ingrid Pettersson, John Bondo Hansen, Janne E. Tønder, 2001, J. Comput. Aided Mol. Des..

Novel acylation catalysts in peptide synthesis: derivatives of N-hydroxytriazoles and N-hydroxytetrazoles

M. Meldal, J. Felding, J. Spetzler, 1998 .

Synthesis of substituted 2-cyanoarylboronic esters.

J. Kristensen, M. Begtrup, Henriette M. Hansen, 2006, The Journal of organic chemistry.