Erik de Vroom : rechercher sur Z-Library

Le plus grand référentiel d'articles scientifiques au monde. 70,000,000+ d'articles gratuitement.

Don't use scam websites

Livres
Articles (33)
Les plus populaires
Liste
- Liste
- Tableau

1

Highly efficient synthesis of ampicillin in an “aqueous solution-precipitate” system: Repetitive addition of substrates in a semicontinuous process

Maxim I. Youshko, Luuk M. van Langen, Erik de Vroom, Fred van Rantwijk, Roger A. Sheldon, Vytas K. Švedas

Journal:

Biotechnology and Bioengineering

Année:

2001

Langue:

english

Fichier:

PDF, 128 KB

english, 2001

2

Industrial transformations of penicillins and cephalosporins

Jan Verweij, Erik de Vroom

Journal:

Recueil des Travaux Chimiques des Pays-Bas

Année:

1993

Langue:

english

Fichier:

PDF, 1.00 MB

english, 1993

3

Penicillin Acylase in the Industrial Production of β-Lactam Antibiotics

Bruggink, Alle, Roos, Eric C., de Vroom, Erik

Journal:

Organic Process Research & Development

Année:

1998

Langue:

english

Fichier:

PDF, 139 KB

english, 1998

4

Enzymatic coupling using a mixture of side chain donors affords a greener process for ampicillin

van Langen, Luuk M., de Vroom, Erik, van Rantwijk, Fred, Sheldon, Roger A.

Journal:

Green Chemistry

Année:

2001

Langue:

english

Fichier:

PDF, 79 KB

english, 2001

5

A New Convenient Synthesis of 3-Carboxycephems Starting from 7-Aminocephalosporanic Acid (7-ACA)

Rolf Keltjens, Subramanian K. Vadivel, Erik de Vroom, Antonius J. H. Klunder, Binne Zwanenburg

Journal:

European Journal of Organic Chemistry

Année:

2001

Langue:

english

Fichier:

PDF, 358 KB

english, 2001

6

Penicillin acylase-catalyzed ampicillin synthesis using a pH gradient: A new approach to optimization

Maxim I. Youshko, Luuk M. van Langen, Erik de Vroom, Fred van Rantwijk, Roger A. Sheldon, Vytas K. Švedas

Journal:

Biotechnology and Bioengineering

Année:

2002

Langue:

english

Fichier:

PDF, 102 KB

english, 2002

7

ChemInform Abstract: Synthesis of Penicillin N and Isopenicillin N.

Rute Madeira Lau, Jacques T. H. van Eupen, Dick Schipper, Godefridus I. Tesser, Jan Verweij, Erik de Vroom

Journal:

Année:

2001

Fichier:

PDF, 30 KB

2001

8

ChemInform Abstract: A New Convenient Synthesis of 3-Carboxycephems Starting from 7-Aminocephalosporanic Acid (7-ACA).

Rolf Keltjens, Subramanian K. Vadivel, Erik de Vroom, Antonius J. H. Klunder, Binne Zwanenburg

Journal:

Année:

2002

Fichier:

PDF, 34 KB

2002

9

Formation and Hydrolysis of Amides

Birgit Schulze, Erik De Vroom

Journal:

Année:

2003

Fichier:

PDF, 52 KB

2003

10

Enzymatic Cleavage of N-Phenylacetyl-Protected Ethanolamine Phosphates

Nicole C. R. van Straten, Howard I. Duynstee, Erik de Vroom, Gijsbert A. van der Marel, Jacques H. van Boom

Journal:

European Journal of Organic Chemistry

Année:

1997

Langue:

english

Fichier:

PDF, 764 KB

english, 1997

11

Cephalosporanic acid 7β-alkylideneammonio salts

Jolanda M.I. Neeft, Jan Verweij, Hans G.J. Hirs, Erik de Vroom

Journal:

Année:

1996

Langue:

english

Fichier:

PDF, 644 KB

english, 1996

12

RNA recognition and cleavage by Fe·bleomycin

Sidney M. Hecht, Chris E. Holmes, Robert J. Duff, Michael A. Morgan, Barbara J. Carter, Erik de Vroom, Eric C. Long

Journal:

Journal of Inorganic Biochemistry

Année:

1993

Langue:

english

Fichier:

PDF, 68 KB

english, 1993

13

Synthesis of Penicillin N and Isopenicillin N

Rute Madeira Lau, Jacques T.H. van Eupen, Dick Schipper, Godefridus I. Tesser, Jan Verweij, Erik de Vroom

Journal:

Année:

2000

Langue:

english

Fichier:

PDF, 113 KB

english, 2000

14

Titanium tetrachloride promoted hydrolysis of cephalosporin tert-butyl esters

Marjan Valencic, Thom van der Does, Erik de Vroom

Journal:

Tetrahedron Letters

Année:

1998

Langue:

english

Fichier:

PDF, 232 KB

english, 1998

15

Substrate specificity of immobilized penicillin-G acylase towards penicillin and cephalosporin derivatives was studied. The phenylacetyl moiety can be altered at the α-position with several small substituents. Depending on polarity and size of the substituent, enzyme activity decreases or increases. Insertion or deletion of atoms between the aromatic nucleus of the phenylacetyl group and the center of hydrolysis leads to substrates that are no longer recognized by the enzyme.

Margreet van der Mey, Erik de Vroom

Journal:

Bioorganic & Medicinal Chemistry Letters

Année:

1994

Langue:

english

Fichier:

PDF, 281 KB

english, 1994

16

Synthesis of 3-alkenylcephalosporins using an epoxide mediated wittig reaction

Erik de Vroom, Anton van der Wal, Johan Lugtenburg

Journal:

Recueil des Travaux Chimiques des Pays-Bas

Année:

1994

Langue:

english

Fichier:

PDF, 150 KB

english, 1994

17

Ring expansion of norpenicillin to 3-norcephalosporin

Pieter A. M. van der Klein, Judith Castelijns, Hans G. J. Hirs, Jan Verweij, Erik de Vroom

Journal:

Recueil des Travaux Chimiques des Pays-Bas

Année:

1996

Langue:

english

Fichier:

PDF, 658 KB

english, 1996

18

Decision making in interhospital transport of critically ill patients: national questionnaire survey among critical care physicians

Erik Jan van Lieshout, Rien de Vos, Jan M. Binnekade, Rob de Haan, Marcus J. Schultz, Margreeth B. Vroom

Journal:

Intensive Care Medicine

Année:

2008

Langue:

english

Fichier:

PDF, 114 KB

english, 2008

19

Reductive rearrangements of silylated penicillin G 1-oxide

Pieter A.M. van der Klein, Henk A. Witkamp, Erik de Vroom

Journal:

Tetrahedron Letters

Année:

1994

Langue:

english

Fichier:

PDF, 168 KB

english, 1994

20

Penicillin acylase-catalyzed synthesis of ampicillin in “aqueous solution–precipitate” systems. High substrate concentration and supersaturation effect

Maxim I Youshko, Luuk M van Langen, Erik de Vroom, Harold M Moody, Fred van Rantwijk, Roger A Sheldon, Vytas K Švedas

Journal:

Journal of Molecular Catalysis B: Enzymatic

Année:

2000

Langue:

english

Fichier:

PDF, 192 KB

english, 2000

21

Conformational analysis of the tetranucleotides m62A-m62A-U-m62A (m62A =N6-dimethyladenosine) and U-m62A-U-m62A and of the hybrid dA-r(U-A) : A one- and two-dimensional NMR study

Yvonne Th. van den HOOGEN, Stevin J. TREURNIET, Harlof C. P. F. ROELEN, Erik de VROOM, Gijs A. van der MAREL, Jacques H. van BOOM, Cornelis ALTONA

Journal:

Année:

1988

Langue:

english

Fichier:

PDF, 759 KB

english, 1988

22

Influence of uracil on the conformational behaviour of RNA oligonucleotides in solution

Yvonne Th. van den HOOGEN, Cornelis ERKELENS, Erik de VROOM, Gijs A. van der MAREL, Jacques H. van BOOM, Cornelis ALTONA

Journal:

Année:

1988

Langue:

english

Fichier:

PDF, 854 KB

english, 1988

23

Conformational consequences of the incorporation of arabinofuranosylcytidine in DNA : An NMR study of the DNA fragments d(CGCTAGCG) and d(CGaCTAGCG) in solution

Jane M. L. PIETERS, Erik de VROOM, Gijs A. van der MAREL, Jacques H. van BOOM, Cornelis ALTONA

Journal:

Année:

1989

Langue:

english

Fichier:

PDF, 1.04 MB

english, 1989

24

Enzymatic synthesis of β-lactam antibiotics using penicillin-G acylase in frozen media

Luuk M. van Langen, Erik de Vroom, Fred van Rantwijk, Roger Sheldon

Journal:

Année:

1999

Langue:

english

Fichier:

PDF, 100 KB

english, 1999

25

Bioavailability of PCDDs and PCDFs adsorbed on fly ash in rat, guinea pig and Syrian golden hamster

Martin van den Berg, Erik de Vroom, Martine van Greevenbroek, Kees Olie, Otto Hutzinger

Journal:

Année:

1985

Langue:

english

Fichier:

PDF, 180 KB

english, 1985

26

Bioavailability of PCDDs and PCDFs on fly ash after semi-chronic oral ingestion by guinea pig and syrian golden hamster

Martin van den Berg, Erik de Vroom, Kees Olie, O. Hutzinger

Journal:

Année:

1986

Langue:

english

Fichier:

PDF, 580 KB

english, 1986

27

Hairpin structures in DNA containing arabinofuranosylcytosine. A combination of nuclear magnetic resonance and molecular dynamics

Pieters, Jane M. L., De Vroom, Erik, Van der Marel, Gijs A., Van Boom, Jacques H., Koning, Thea M. G., Kaptein, Robert, Altona, Cornelis

Journal:

Année:

1990

Langue:

english

Fichier:

PDF, 1.38 MB

english, 1990

28

Evidence for C-1' hydrogen abstraction from modified oligonucleotides by iron-bleomycin

Duff, Robert J., de Vroom, Erik, Geluk, Annemiek, Hecht, Sidney M., van der Marel, Gijs A., van Boom, Jacques H.

Journal:

Journal of the American Chemical Society

Année:

1993

Langue:

english

Fichier:

PDF, 227 KB

english, 1993

29

Site-Specific Cleavage of RNA by Fe(II)·Bleomycin

Barbara J. Carter, Erik de Vroom, Eric C. Long, Gijs A. van der Marel, Jacques H. van Boom and Sidney M. Hecht

Journal:

Proceedings of the National Academy of Sciences

Année:

1990

Langue:

english

Fichier:

PDF, 1.03 MB

english, 1990

30

Nurses versus physician-led interhospital critical care transport: a randomized non-inferiority trial

van Lieshout, Erik Jan, Binnekade, Jan, Reussien, Elmer, Dongelmans, Dave, Juffermans, Nicole P., de Haan, Rob J., Schultz, Marcus J., Vroom, Margreeth B.

Journal:

Intensive Care Medicine

Année:

2016

Langue:

english

Fichier:

PDF, 981 KB

english, 2016

31

Bulge-out structures in the single-stranded trimer AUA and in the duplex (CUGGUGCGG).(CCGCCCAG). A model-building and NMR study

van den Hoogen, Yvonne Th., van Beuzekom, Aart A., de Vroom, Erik, van der Marel, Gijs A., van Boom, Jacques H., Altona, Cornelis

Journal:

Nucleic Acids Research

Année:

1988

Langue:

english

Fichier:

PDF, 625 KB

english, 1988

32

[American Thoracic Society American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado - ()] C91. LATE BREAKING CLINICAL TRIALS SYMPOSIUM - Intensive Care Physician Versus Qualified Nurse Based Critical Care Transport - A Randomized Controlled (IQ-Transport Trial

van Lieshout, Erik, Binnekade, Jan, de Haan, Rob J., Vroom, Margreeth, Schultz, Marcus J.

Année:

2011

Langue:

english

Fichier:

PDF, 18 KB

english, 2011

33

Muscle biopsies in clinical trials for Duchenne muscular dystrophy – Patients’ and caregivers’ perspective

Verhaart, Ingrid E.C., Johnson, Alex, Thakrar, Sejal, Vroom, Elizabeth, De Angelis, Fernanda, Muntoni, Francesco, Aartsma-Rus, Annemieke M., Niks, Erik H.

Journal:

Neuromuscular Disorders

Année:

2019

Langue:

english

Fichier:

PDF, 1.67 MB

english, 2019