Comparison between electrochemistry/mass spectrometry and cytochrome P450 catalyzed oxidation reactions

U Jurva, HV Wikström, L Weidolf… - … in mass spectrometry, 2003 - Wiley Online Library
The extent to which electrochemistry on‐line with electrospray mass spectrometry can be
used to mimic cytochrome P450 catalyzed oxidations has been investigated. Comparisons on …

Stereochemistry-dependent cytotoxicity of some artemisinin derivatives

…, FS El-Feraly, AM Galal, HV Wikström - Journal of natural …, 1997 - ACS Publications
We determined the cytotoxicity of some artemisinin derivatives against EN2 tumor cells using
the MTT assay. Artemisinin (1) was clearly more cytotoxic than deoxyartemisinin (2), which …

Use of in-line near-infrared spectroscopy in combination with chemometrics for improved understanding of pharmaceutical processes

J Rantanen, H Wikström, R Turner… - Analytical chemistry, 2005 - ACS Publications
High shear granulation is a complex unit operation with several interacting process
parameters. No generally accepted real-time in-line tools are available to gain insight into this …

Structure− cytotoxicity relationships of some helenanolide-type sesquiterpene lactones

…, N Pras, AWT Konings, HV Wikström… - Journal of Natural …, 1997 - ACS Publications
This study deals with the cytotoxicity of helenanolide-type (10α-methylpseudoguaianolide)
sesquiterpene lactones. We determined the influence of substitution patterns on the toxicity of …

Synthesis and pharmacological evaluation of thiopyran analogues of the dopamine d3 receptor-selective agonist (4a r, 10b r)-(+)-trans-3, 4, 4a, 10b-tetrahydro-4-n …

…, N Rodenhuis, D Dijkstra, H Wikström… - Journal of medicinal …, 2000 - ACS Publications
Benzopyranoxazine (+)-7 (PD 128907) is the most dopamine (DA) D 3 receptor-selective
agonist presently known. The only structural feature which distinguishes 7 from the analogous …

Understanding the tendency of amorphous solid dispersions to undergo amorphous–amorphous phase separation in the presence of absorbed moisture

ACF Rumondor, H Wikström, B Van Eerdenbrugh… - Aaps Pharmscitech, 2011 - Springer
Abstract Formulation of an amorphous solid dispersion (ASD) is one of the methods commonly
considered to increase the bioavailability of a poorly water-soluble small-molecule active …

In-line monitoring of hydrate formation during wet granulation using Raman spectroscopy

H Wikström, PJ Marsac, LS Taylor - Journal of pharmaceutical sciences, 2005 - Elsevier
Process‐induced transformations are very important to control during pharmaceutical
manufacturing because they may change the properties of the active pharmaceutical ingredient in …

Autoradiographic localisation of D3-dopamine receptors in the human brain using the selective D3-dopamine receptor agonist (+)-[3H] PD 128907

H Hall, C Halldin, D Dijkstra, H Wikström, LD Wise… - …, 1996 - Springer
The selective D 3 -dopamine receptor agonist 4aR,10bR-(+)-trans-3,4,4a,10b-tetrahydro-4-[N-propyl-2,3-
3 H]-2H,5H-[1]benzopyrano[4,3-b]-1,4-oxazin-9-ol ([ 3 H]PD 128907) was used …

New (sulfonyloxy) piperazinyldibenzazepines as potential atypical antipsychotics: chemistry and pharmacological evaluation

…, N Rodenhuis, W Timmerman, H Wikström… - Journal of medicinal …, 1999 - ACS Publications
A series of 2- or 8-trifluoromethylsulfonyloxy (TfO) and 2- or 8-methylsulfonyloxy (MsO) 11-piperazinyldibenzodiazepines,
-oxazepines, and -thiazepines were synthesized and …

In vitro mimicry of metabolic oxidation reactions by electrochemistry/mass spectrometry†

U Jurva, HV Wikström, AP Bruins - Rapid Communications in …, 2000 - Wiley Online Library
The aim of these studies was to investigate the scope and limitations of electrochemistry on‐line
with mass spectrometry as a quick and convenient way to mimic phase I oxidative …