Synthesis of disparlure and monachalure enantiomers from 2,3-butanediacetals

Autor: Adam Drop, Hubert Wojtasek, Bożena Frąckowiak-Wojtasek

Publikováno v: Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 616-620 (2020)

2,3-Butanediacetal derivatives were used for the stereoselective synthesis of unsymmetrically substituted cis-epoxides. The procedure was applied for the preparation of both enantiomers of disparlure and monachalure, the components of the sex pheromo

Externí odkaz: https://doaj.org/article/2aa5f6299ec946c982e08d34990b3300

Rifampicin is not an inhibitor of tyrosinase

Autor: Damian Tarasek, Hubert Wojtasek

Publikováno v: International journal of biological macromolecules. 216

Rifampicin has been previously described as an inhibitor of tyrosinase (Chai et al., Int. J. Biol. Macromol. 102 (2017) 425-430). However, rifampicin contains a p-diphenol group and compounds with such a moiety have been shown before to reduce tyrosi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9f91561d731cf55642ab551abb1b78e
https://pubmed.ncbi.nlm.nih.gov/35914550

Mechanisms of interference of p-diphenols with the Trinder reaction

Autor: Damian Tarasek, Hubert Wojtasek, Beata Gąsowska-Bajger

Publikováno v: Bioorganic Chemistry. 97:1-8

p-Diphenols, such as homogentisic acid, gentisic acid, etamsylate, and calcium dobesilate, interfere with diagnostic tests utilizing the Trinder reaction but the mechanisms of these effects are not fully understood. We observed substantial difference

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27247ce9044307f2e75686868b3d3135
https://www.sciencedirect.com/science/article/pii/S0045206819318802?via=ihub

Oxidation of baicalein by tyrosinase and by o-quinones

Autor: Beata Gąsowska-Bajger, Hubert Wojtasek

Publikováno v: International Journal of Biological Macromolecules. 231:123317

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::998ce0b44d33d7837728254912dde542
https://doi.org/10.1016/j.ijbiomac.2023.123317

Collisional mechanism of ligand release by Bombyx mori JHBP, a member of the TULIP / Takeout family of lipid transporters

Autor: Haq Abdul Shaik, Erwan Rougeux, Loïc Briand, Laurent Beney, Jean-Philippe Charles, Emma Granon, François Bousquet, Stéphane Dupas, Fabrice Neiers, Hubert Wojtasek, Sébastien Dupont

Publikováno v: Insect Biochemistry and Molecular Biology
Insect Biochemistry and Molecular Biology, Elsevier, 2020, 117, pp.103293. ⟨10.1016/j.ibmb.2019.103293⟩

International audience; Juvenile hormones (JHs) regulate important processes in insects, such as postembryonic development and reproduction. In the hemolymph of Lepidoptera, these lipophilic sesquiterpenic hormones are transported from their site of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62534598301907fc121aa57fd13e783c
https://hal-univ-bourgogne.archives-ouvertes.fr/hal-02407949