Promiscuous Lipase-Catalyzed Markovnikov Addition of H-Phosphites to Vinyl Esters for the Synthesis of Cytotoxic α-Acyloxy Phosphonate Derivatives
Data
2022-03-07Autor
Kowalczyk, Paweł
Koszelewski, Dominik
Gawdzik, Barbara
Samsonowicz-Górski, Jan
Kramkowski, Karol
Wypych, Aleksandra
Lizut, Rafał
Ostaszewski, Ryszard
Metadane
Pokaż pełny rekordStreszczenie
An enzymatic route for phosphorous-carbon- bond formation is developed by discovering
new promiscuous activity of lipase. This biocatalytic transformation of phosphorous-carbon- bond
addition leads to biologically and pharmacologically relevant α-acyloxy phosphonates with methyl
group in α-position. A series of target compounds were synthesized with yields ranging from 54%
to 83% by enzymatic reaction with Candida cylindracea (CcL) lipase via Markovnikov addition of
H-phosphites to vinyl esters. We carefully analyzed the best conditions for the given reaction such as
the type of enzyme, temperature, and type of solvent. The developed protocol is applicable to a range
of H-phosphites and vinyl esters significantly simplifying the preparation of synthetically challenging
α-pivaloyloxy phosphonates. Further, the obtained compounds were validated as new potential
antimicrobial drugs with characteristic E. coli bacterial strains and DNA modification recognized
by the Fpg protein, N-methyl purine glycosylases as new substrates. The impact of the methyl
group located in the α-position of the studied α-acyloxy phosphonates on the antimicrobial activity
was demonstrated. The pivotal role of this group on inhibitory activity against selected pathogenic
E. coli strains was revealed. The observed results are especially important in the case of the increasing
resistance of bacteria to various drugs and antibiotics.
Kolekcje
- Artykuły IChO PAN [109]