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A Convenient Synthesis of (16S,20S)-3β-hydroxy-5α-pregnane-20,16-carbolactam and its N-alkyl Derivatives.
Wojtkielewicz A, Pawelski D, Bazydło P, Baj A, Witkowski S, Morzycki JW. Wojtkielewicz A, et al. Among authors: witkowski s. Molecules. 2020 May 20;25(10):2377. doi: 10.3390/molecules25102377. Molecules. 2020. PMID: 32443910 Free PMC article.
Tocopheryl Succinate-Induced Structural Changes in DPPC Liposomes: DSC and ANS Fluorescence Studies.
Neunert G, Tomaszewska-Gras J, Witkowski S, Polewski K. Neunert G, et al. Among authors: witkowski s. Molecules. 2020 Jun 16;25(12):2780. doi: 10.3390/molecules25122780. Molecules. 2020. PMID: 32560228 Free PMC article.
Synthesis, DFT Calculations, and In Vitro Antioxidant Study on Novel Carba-Analogs of Vitamin E.
Baj A, Cedrowski J, Olchowik-Grabarek E, Ratkiewicz A, Witkowski S. Baj A, et al. Among authors: witkowski s. Antioxidants (Basel). 2019 Nov 26;8(12):589. doi: 10.3390/antiox8120589. Antioxidants (Basel). 2019. PMID: 31779214 Free PMC article.
rac-6-Hy-droxy-2,5,7,8-tetra-methyl-chroman-2-carboxamide from synchrotron data.
Brzezinski K, Dauter Z, Baj A, Wałejko P, Witkowski S. Brzezinski K, et al. Among authors: witkowski s. Acta Crystallogr Sect E Struct Rep Online. 2011 Jan 29;67(Pt 2):o503-4. doi: 10.1107/S1600536811002807. Acta Crystallogr Sect E Struct Rep Online. 2011. PMID: 21523156 Free PMC article.
Solvation of 2-(hydroxymethyl)-2,5,7,8-tetramethyl-chroman-6-ol revealed by circular dichroism: a case of chromane helicity rule breaking.
Rode JE , Górecki M , Witkowski S , Frelek J . Rode JE , et al. Among authors: witkowski s. Phys Chem Chem Phys. 2018 Sep 12;20(35):22525-22536. doi: 10.1039/c8cp02491j. Phys Chem Chem Phys. 2018. PMID: 30140796
Photostability of alpha-tocopherol ester derivatives in solutions and liposomes. Spectroscopic and LC-MS studies.
Neunert G, Szwengiel A, Walejko P, Witkowski S, Polewski K. Neunert G, et al. Among authors: witkowski s. J Photochem Photobiol B. 2016 Jul;160:121-7. doi: 10.1016/j.jphotobiol.2016.03.032. Epub 2016 Apr 2. J Photochem Photobiol B. 2016. PMID: 27107331
Synthesis of Solanum Alkaloid Demissidine Stereoisomers and Analogues.
Rivas-Loaiza JA, Baj A, López Y, Witkowski S, Wojtkielewicz A, Morzycki JW. Rivas-Loaiza JA, et al. Among authors: witkowski s. J Org Chem. 2021 Jan 15;86(2):1575-1582. doi: 10.1021/acs.joc.0c02410. Epub 2021 Jan 4. J Org Chem. 2021. PMID: 33393776
Decomposition of alpha-Tocopheryl Glycosides in Rat Tissues.
Knaś M, Wałejko P, Maj J, Hryniewicka A, Witkowski S, Borzym-Kluczyk M, Dudzik D, Zwierz K. Knaś M, et al. Among authors: witkowski s. Toxicol Mech Methods. 2008 Jul;18(6):491-496. doi: 10.1080/15376510802164519. Epub 2008 Jun 23. Toxicol Mech Methods. 2008. PMID: 19696909 Free PMC article.
New indenylidene-type metathesis catalysts bearing unsymmetrical N-heterocyclic ligands with mesityl and nitrobenzyl substituents.
Malinowska M, Kozlowska M, Hryniewicka A, Witkowski S, Morzycki JW. Malinowska M, et al. Among authors: witkowski s. Monatsh Chem. 2016;147:1091-1100. doi: 10.1007/s00706-016-1697-7. Epub 2016 Mar 10. Monatsh Chem. 2016. PMID: 27340298 Free PMC article.
Stereochemistry of ring-opening/cross metathesis reactions of exo- and endo-7-oxabicyclo[2.2.1]hept-5-ene-2-carbonitriles with allyl alcohol and allyl acetate.
Wałejko P, Dąbrowski M, Szczepaniak L, Morzycki JW, Witkowski S. Wałejko P, et al. Among authors: witkowski s. Beilstein J Org Chem. 2015 Oct 13;11:1893-901. doi: 10.3762/bjoc.11.204. eCollection 2015. Beilstein J Org Chem. 2015. PMID: 26664608 Free PMC article.
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