Antimicrobials

<p>Cefadroxil is a first-generation cephalosporin antibiotic with action on bacterial cell wall synthesis and is used for treating infections like strep throat, skin infections, and urinary tract infections.</p>

<p>Tomopenem is a carbapenem antibiotic, which is a product of synthetic origin with broad-spectrum antibacterial properties. It acts by inhibiting the synthesis of bacterial cell walls through binding to penicillin-binding proteins, thereby disrupting the structural integrity of the cell wall and leading to bacterial cell lysis and death.</p>

<p>Mebendazole is a benzimidazole anthelmintic with action on microtubule formation in parasitic worms and is used for treating intestinal worm infections like threadworms and roundworms.</p>

<p>Nevirapine is a non-nucleoside reverse transcriptase inhibitor (NNRTI) with action on HIV reverse transcriptase to block viral replication and is used for treating HIV/AIDS in combination therapies.</p>

<p>A broad-spectrum antibiotic of macrolide class, which targets 50S ribosomal subunit and inhibits protein synthesis. Erythromycin is widely used in molecular biology and biotechnology as a selection marker. Erythromycin is also an agonist of the motilin receptor, and it has prokinetic activity on the gut.</p>

<p>Ampicillin is a β-lactam antibiotic with a broad spectrum of activity against Gram-positive and Gram-negative bacteria. It is used in the treatment of bacterial infections, including those caused by methicillin-resistant Staphylococcus aureus (MRSA), Streptococcus pneumoniae, and Listeria monocytogenes. Ampicillin binds to penicillin-binding proteins in the bacterial cell wall by competitive inhibition. It prevents the formation of an antibiotic-inhibitor complex with the enzyme cell wall synthesis that is required for cell wall biosynthesis, inhibiting protein synthesis and cell division.</p>

<p>N-Demethyl roxithromycin is a metabolite of roxithromycin with action on bacterial protein synthesis inhibition and is used for research on macrolide antibiotics.</p>

<p>Cefatrizine propylene glycol is a cephalosporin antibiotic with action against gram-positive and gram-negative bacteria and is used for treating respiratory and skin infections.</p>

<p>Broad-spectrum fluoroquinolone antibacterial agent</p>

<p>Cefepime dihydrochloride monohydrate is a fourth-generation cephalosporin antibiotic with action on bacterial cell wall synthesis and is used for treating severe bacterial infections, including pneumonia and urinary tract infections.</p>

<p>Inhibitor of hepatitis C viral enzyme NS3-4A serine protease</p>

<p>Repromicin is a novel antibiotic, which is derived from a unique strain of actinobacteria. This organism is known for its ability to produce a wide range of bioactive compounds. Repromicin operates by inhibiting bacterial protein synthesis, a mode of action that involves binding to the bacterial ribosome and interfering with the translation process. This leads to an effective halt in bacterial growth and proliferation.</p>

<p>Baloxavir marboxil is a selective inhibitor of the cap-dependent endonuclease of RNA polymerase, an acidic protein in influenza A and B viruses. In patients, baloxavir marboxil reduces the time to recovery by alleviating the symptoms of the influenza A and B infection, in both adults and children.</p>

<p>Kanamycin sulfate is a water-soluble antibiotic. Genes encoding kanamycin resistance are commonly used as selection markers in molecular biology .It acts during the translation mechanism in prokaryotic ribosomes to avoid bacterial cell growth.</p>

<p>Cefpodoxime is a semi-synthetic antibiotic that is clinically used against bacterial infections. The chemical structure of Cefpodoxime is similar to Cephalexin and has high bioavailability and high resistance to inhibit bacterial growth. Cefpodoxime acts inhibiting the synthesis of cell wall, the cross-linking of peptidoglycan and altering bacterial permeability by inhibiting lipopolysaccharide synthesis. Studies have shown that cefpodoxime can be used for treating prophylaxis of respiratory tract infections, in which being absorbed from the gastrointestinal tract unchanged and is metabolized to an active form in liver cells both after oral ingestion or after a single parenteral dose.</p>

<p>Inhibitor of protein synthesis; aminoglycoside</p>

<p>Selective and potent inhibitor of sialidases (neuraminidases) in influenza A and B viruses. The compound binds tightly to the viral neuraminidase active site in late stages of viral life-cycle. It inhibits shedding sialic acids from host cell surface glycans, which interact with viral hemagglutinin, and consequently prevents release of new viral particles from the host cell surface.</p>

<p>N-Boc-protected -Guanidino Oseltamivir is a fine chemical that belongs to the group of versatile building blocks. It is a complex compound that has been used in research as a reagent and speciality chemical. N-Boc-protected -Guanidino Oseltamivir is an important intermediate for the synthesis of a variety of useful compounds, such as pharmaceuticals and natural products. This compound is also used as a reaction component in organic syntheses, especially for the preparation of high quality and useful scaffolds.</p>

<p>Cefazaflur is a semisynthetic cephalosporin antibiotic, which is derived from the mold Acremonium (formerly known as Cephalosporium). Its mode of action involves inhibiting bacterial cell wall synthesis by targeting penicillin-binding proteins (PBPs). This interference prevents the cross-linking of peptidoglycan chains, which is essential for bacterial cell wall structural integrity, ultimately leading to cell lysis and death.</p>

<p>Raltegravir is an antiretroviral agent that is used for the treatment of HIV infections. It inhibits HIV integrase in order to prevent viral genome from being inserted into the human genome. It binds to the active site of the enzyme and prevents it from binding to a target sequence on the viral DNA. This drug is metabolized by glucuronidation.</p>

<p>Triclabendazole is a benzimidazole anthelmintic with action on liver flukes by disrupting their microtubule formation and is used for treating fascioliasis in humans and animals.</p>

<p>Inhibitor of protein synthesis; streptogramin</p>

<p>Enoxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating urinary tract infections and gonorrhea.</p>

<p>Oritavancin diphosphate is a lipoglycopeptide antibiotic with action on bacterial cell wall synthesis and is used for treating acute bacterial skin and skin structure infections.</p>

<p>Doramectin is a macrocyclic lactone antiparasitic agent with action on glutamate-gated chloride channels in parasites and is used for treating internal and external parasitic infections in livestock.</p>

<p>Neomycin, one of the many oligosaccharide containing antibiotics, is an aminoglycoside antibiotic found in Streptomyces fradiae (Collins, 2006) with wide spectrum, active against Gram-negative Gram-positive bacteria. Neomycin is commony used as a selection marker in cloning, and is therefore used in growth media to select colonies with the neomycin resistance cassette integrated into their genome. Neomycin is a mixture of neomycin B (Framycetin) and its epimer Neomycin C, the latter component accounting for some 5–15% of the mixture.</p>

<p>Dihydrostreptomycin B is an aminoglycoside antibiotic, which is derived from the bacterium Streptomyces griseus. This antibiotic operates by binding to the 30S subunit of the bacterial ribosome, leading to the inhibition of protein synthesis. The binding disrupts the decoding site, causing misreading of mRNA and ultimately resulting in bactericidal activity.</p>

<p>Closantel sodium dihydrate is a salicylanilide antiparasitic agent with action on flukes, nematodes, and arthropods and is used for veterinary treatment of parasitic infections.</p>

<p>Butoconazole nitrate is an antifungal agent and is used for the treatment of vaginal yeast infections. It inhibits the synthesis of ergosterol, disrupting the fungal cell membrane.</p>

<p>Exalamide is an arenecarboxamide antifungal agent with action on fungal growth inhibition and is used for research on fungal infections.</p>

<p>Avermectin B1a (&gt;85%) is a macrolide anthelmintic and is used for the treatment of parasitic infections. It enhances the effects of glutamate at the glutamate-gated chloride channels, causing paralysis and death of the parasite</p>

<p>Gentamicin C1a is an aminoglycoside antibiotic, which is a secondary metabolite derived from the bacterium Micromonospora. This antibiotic functions through a mode of action that involves binding to the 30S subunit of bacterial ribosomes. This binding disrupts protein synthesis by causing misreading of the mRNA, ultimately leading to inhibition of bacterial growth and cellular death.</p>

<p>Erythromycinacistrate is a macrolide antibiotic, which is derived from the bacterium *Saccharopolyspora erythraea*. Its mode of action involves binding to the 50S ribosomal subunit of susceptible bacteria, thereby inhibiting protein synthesis. This action effectively halts bacterial growth and replication, making it particularly effective against a wide range of Gram-positive and some Gram-negative bacteria.</p>

<p>Geneticin is very efficient against gram-negative bacteria, however it is not applied for treating infections due to high renal toxicity. Geneticin and its resistance genes found application in the selection of transgenic cell lines including yeasts such as P. pastoris and S. serevisiae, other eukaryotic cell lines such as CHO or HEK293, but also plant cells and bacterial cells.</p>

<p>Amphotericin A is a polyene macrolide antibiotic, which is derived primarily from the soil bacterium *Streptomyces nodosus*. This compound functions by binding to ergosterol, an essential component of fungal cell membranes. This binding creates pores in the membrane, increasing its permeability and ultimately leading to cell death. Unlike its more widely used counterpart Amphotericin B, Amphotericin A is less frequently utilized but is critical in the study and understanding of antifungal activity.</p>

<p>Emtricitabine is a nucleoside analog that is an antiviral drug used to treat HIV/AIDS. It is a synthetic nucleoside analog of cytidine, in which the 3' phosphate and 5' hydroxyl groups have been replaced with a fluorine atom and a methoxy group, respectively. Emtricitabine has been shown to inhibit the synthesis of viral DNA by competing for incorporation into the viral DNA strand during the elongation phase of viral replication. Emtricitabine also has anticancer activity, but no other known therapeutic uses.</p>

<p>Inhibitor of HIV-1 integrase strand transfer; antiviral</p>

<p>Inhibitor of protein synthesis; glycylcycline class</p>

<p>Norfloxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating urinary tract infections and gonorrhea.</p>

<p>Inhibitor of cell wall biogenesis; glycopeptide antibiotic</p>

<p>Amicoumacin B is a potent antibiotic, which is isolated from the bacterial species Bacillus pumilus. It acts by inhibiting protein synthesis, targeting the ribosomal 30S subunit and disrupting translational fidelity in bacterial cells. This interference in protein production leads to the effective elimination of various Gram-positive and certain Gram-negative bacteria.</p>

<p>Ertapenem sodium is a carbapenem antibiotic with action on bacterial cell wall synthesis and is used for treating severe bacterial infections like intra-abdominal infections and pneumonia.</p>

<p>Lomefloxacin is a fluoroquinolone antibiotic with a mode of action that inhibits bacterial DNA gyrase and topoisomerase IV. It is used for treating bacterial infections like bronchitis and urinary tract infections.</p>

<p>Butenafine hydrochloride is a mycological agent that is used to treat tinea. It has been shown to have an antifungal activity in vitro against wild-type strains of c. glabrata. Butenafine hydrochloride inhibits the synthesis of ergosterol, which is a vital component of fungal cell membranes, by blocking the conversion of squalene to lanosterol through inhibition of 14alpha-demethylase. It also has antimicrobial properties, which may be due to its ability to inhibit bacterial growth.</p>

<p>Griselimycin is an antibiotic, which is derived from the bacterial genus *Streptomyces*. This compound exhibits its mode of action by targeting bacterial protein synthesis, specifically binding to the DNA polymerase sliding clamp, thereby inhibiting replication and cell division in a range of bacterial pathogens. Griselimycin has been the focus of renewed scientific interest due to its potent activity against Mycobacterium tuberculosis, including multi-drug-resistant strains. The compound’s unique mode of action makes it a promising candidate for further development in the treatment of tuberculosis and potentially other bacterial infections that have developed resistance to more commonly used antibiotics. Advances in understanding its biosynthesis have facilitated semi-synthetic modifications, potentially enhancing its pharmacokinetic properties and antimicrobial spectrum. The applications of Griselimycin extend to research contexts where understanding resistance mechanisms and novel antibiotic development are critical. Continued exploration of this compound may contribute significantly to addressing the global challenge of antibiotic resistance.</p>

<p>HIV-1 Integrase Inhibitor is an antiretroviral compound with a mode of action that blocks the viral enzyme integrase, preventing the integration of viral DNA into the host genome. It is used for the treatment of HIV infection.</p>

<p>Anti-viral; inhibits Hepatitis C virus NS3/4a protease</p>

<p>Capastat sulfate is an antibiotic with action against Mycobacterium tuberculosis by inhibiting protein synthesis and is used for treating tuberculosis.</p>

<p>GSK 2838232 is a HIV-1 maturation inhibitor with action on HIV-1 Gag protein cleavage and is used for research on HIV treatment.</p>

<p>Herbicidin K is a naturally derived herbicide, known for its biological origin from microbial fermentation processes. It is primarily sourced from certain strains of Streptomyces, a genus of Gram-positive bacteria notable for their diverse secondary metabolites. The mode of action of Herbicidin K involves the inhibition of key enzymatic pathways within target plants, leading to the disruption of cellular functions and ultimately plant death. This selectivity is particularly effective against broadleaf weeds, providing a targeted approach to weed management.</p>