The usefulness of simple X-ray powder diffraction analysis for counterfeit control--the Viagra example.
Synthesis of Imperatorin Analogs and Their Evaluation as Acetylcholinesterase and Butyrylcholinesterase Inhibitors
- S. Granica, A. Kiss, Małgorzata Jarończyk, J. Maurin, A. Mazurek, Z. Czarnocki
- Chemistry, BiologyArchiv der Pharmazie
- 1 November 2013
The results of this study may be considered as the beginning of a search for potential anti‐Alzheimer's disease drugs based on the structure of natural furocoumarins.
Formal synthesis of (-)-podophyllotoxin through the photocyclization of an axially chiral 3,4-bisbenzylidene succinate amide ester--a flow photochemistry approach.
- K. Lisiecki, K. Krawczyk, P. Roszkowski, J. Maurin, Z. Czarnocki
- ChemistryOrganic and biomolecular chemistry
- 14 January 2016
A strategy for the stereoselective synthesis of cyclolignans related to podophyllotoxin and its derivatives and the photocyclization of a chiral atropoisomeric 1,2-bisbenzylidenesuccinate amide ester is developed.
Preparation and thermal stability of optically active 1,2,4-triazolium-based ionic liquids
The synthesis of optically active ionic liquids, in a four-step reaction sequence, is described. In the first step an oxirane ring of cyclohexene oxide was opened with 1,2,4-triazole, yielding a…
On the Primary Ionization Mechanism(s) in Matrix-Assisted Laser Desorption Ionization
- L. Molin, R. Seraglia, Z. Czarnocki, J. Maurin, F. Pluciński, P. Traldi
- ChemistryJournal of Analytical Methods in Chemistry
- 27 November 2012
A mechanism is proposed for the first step of ionization occurring in matrix-assisted laser desorption ionization, leading to protonated and deprotonated matrix (Ma) molecules ([Ma + H]+ and [Ma −…
Genistein complexes with amines: structure and properties
New amine complexes of genistein in the crystal and the solution state have been studied by X-ray crystallography and by 1H and 13C NMR spectroscopy. The gas-phase structures have been modelled with…
Recognition of active ingredients in tablets by chemometric processing of X-ray diffractometric data.
(S)-(−)-α-Methylbenzylamine as chiral auxiliary in the synthesis of (+)-lortalamine
Abstract(+)-Lortalamine was synthesised using (S)-(−)-α-methylbenzylamine as a chiral auxiliary. The stereochemistry of an intermediate compound was established on the basis of X-ray crystallography,…
Hydrogen-bonded complex formation of oximes with carboxylic acids and with amides. (E)-Acetophenone oxime–benzoic acid (1/1) and (E)-benzaldehyde oxime–benzamide (1/1)
(E)-Acetophenone oxime-benzoic acid (1/1), C 7 H 6 O 2 .C 8 H 9 NO, M r =257.29, monoclinic, P2 1 /c, a=13.666 (1), b=5.413 (2), c=16.298 (1) A, β=108.55 (1) o , V=1282.7 (2) A 3 , Z=4, T=223 (2) K,…