Éteres

5-Ethoxy-2(5H)-furanone is an oxidation product of 5-ethoxy-2(5H)-furanone. It has an isomeric, stereospecific, regiospecifically, and a tautomeric relationship with furfural. 5-Ethoxy-2(5H)-furanone can be produced by the oxidation of furfural with boron trifluoride etherate in the presence of iodosobenzene. The reaction mechanism involves the addition of hydrogen peroxide to the boron trifluoride etherate to form hydroperoxydiborane. This compound then reacts with iodosobenzene to produce 5-ethoxy-2(5H)-furanone and 2,5-dihydroxybenzaldehyde. The reaction produces a mixture of diastereomers that contain different numbers of carbon atoms due to the regiospecific

4'-TrifluoroMethoxybiphenyl-3-carboxylic acid (4'-TFMB) is a potent and selective inhibitor of the protein kinase, PI3K. It is used in dermatology to treat sebaceous gland disorders such as acne, rosacea, and erythrasma. 4'-TFMB has been shown to inhibit the activity of PI3K and thus inhibit the proliferation of cancer cells. This compound also inhibits the production of sebum by downregulating the expression of sebaceous lipids. 4'-TFMB selectively inhibits PI3K/Akt signaling pathways mediated by soluble receptor tyrosine kinases (RTKs) such as insulin like growth factor 1 receptor (IGF1R), platelet derived growth factor receptors (PDGFRs), and vascular endothelial growth factor receptors (VEGFRs).

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid ethyl ester (1CPD) is an industrial chemical that is synthesized by the reaction of thiomorpholine with hydrochloric acid in acetonitrile. 1CPD has been shown to have potent antibacterial activity against a number of bacteria. It was also found to be effective against methicillin resistant Staphylococcus aureus and Mycobacterium tuberculosis. 1CPD inhibits bacterial DNA gyrase and topoisomerase IV, which are enzymes that maintain the integrity of bacterial DNA. It binds to bacterial 16S ribosomal RNA and inhibits protein synthesis, leading to cell death by inhibiting the production of proteins vital for cell division.