Antimicrobials

Vancomycin hydrochloride is an antibiotic that is used against Gram-positive bacteria, including Staphylococcus aureus. It has been shown to inhibit the growth of bacteria by binding the D-alanyl-D-alanine moiety of the peptidoglycan cell wall precursor, inhibiting the peptidoglycan synthesis and disrupting its cross linking. It also inhibits particle formation when it reacts with human plasma, which can lead to hemolysis and hemagglutination. The absorption spectrum for vancomycin hydrochloride shows maxima at 230, 260, 290, and 320 nm, which are characteristic for this compound. Vancomycin has been used in several studies for treatment of methicillin-resistant Staphylococcus aureus infections.

Benznidazole is an antiprotozoal agent and is used for the treatment of Chagas disease. It generates free radicals that damage the DNA and other cellular components of the parasite.

Raltegravir is an antiretroviral agent, which is a synthetic integrase inhibitor sourced from pharmaceutical research. Its mode of action involves the inhibition of the HIV-1 integrase enzyme, which is essential for the viral replication process. By blocking the strand transfer step of the integration of viral DNA into the host cell genome, Raltegravir prevents the proliferation of the virus within the host.

Dual inhibitor of topoisomerase I and II

Gentamicin C1a pentaacetate is an aminoglycoside antibiotic derivative, which is synthesized through the acetylation of the hydroxyl groups in gentamicin C1a. This compound is derived from the fermentation products of Micromonospora species, a genus of actinobacteria. Its mode of action is similar to that of standard aminoglycosides, primarily involving the binding to bacterial 30S ribosomal subunits. This binding interferes with protein synthesis by causing misreading of mRNA, ultimately leading to the inhibition of protein production and bacterial cell death.

Imidocarb Dipropionate is an antiprotozoal compound with a mode of action that interferes with the glycolysis of parasites like Babesia. It is used for treating infections such as babesiosis in animals.

Anti-viral; HIV protease inhibitor

EIDD 2801 is an orally bioavailable prodrug of β-D-N4-hydroxycytidine and was shown to inhibit SARS-CoV-2 replication in human airway epithelial cells. EIDD 2801 was also tested in mice infected with SARS-CoV and MERS-CoV viruses. EIDD 2801 targets the RNA-dependent RNA polymerase (RdRp) and reduces virus titer and improved pulmonary function in experimental animals when used in prophylactic and therapeutic regime.

Treatment for leishmaniasis

Nadifloxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase to inhibit DNA synthesis and is used for treating acne vulgaris and bacterial skin infections.

Darunavir is a HIV-1 protease inhibitor used orally in the treatment of patients with multi-drug resistant HIV-1 infection (Ghosh, 2007). It has also been shown to be effective against other infectious diseases such as hepatitis C virus and SARS coronavirus. Metabolized by cytochrome P450 3A (CYP3A) isoenzymes, darunavir is often administered together with ritonavir that prolongs its bioavaiability, giving a terminal elimination half-life (t1/2) of 15 hours (Back, 2008). The effect of darunavir on natural compounds such as matrix proteins and toll-like receptor activity has also been studied via high performance liquid chromatography (HPLC) experiments.

Amicetin is a type of antibiotic, which is derived from bacterial sources, specifically from Streptomyces species. It functions primarily by inhibiting protein synthesis in susceptible bacteria, achieved through interfering with the aminoacyl-tRNA binding process on the ribosome. This mechanism disrupts the translation process, thereby preventing bacterial growth and replication.

Second-generation lipoglycopeptide antibiotic

STAADIUM™ GalactoZide II is a targeted inhibitor for β-galactosidase producing bacteria. The antibacterial activity of STAADIUM™ GalactoZide II is triggered by the enzyme β-galactosidase which is produced by E.coli (EHEC), thermophilic lactic acid bacteria, and other coliform bacteria. STAADIUM™ GalactoZide II can help to selectively inhibit the growth of E. coli in complex bacterial cultures and can be used in microbiome studies, food control, environmental safety, hygiene, and clinical diagnostics. STAADIUM™ GalactoZide II is not compatible with some experimental conditions, e.g. pH indicators such as neutral red, indigo stains, and possibly H2S staining. STAADIUM™ GalactoZide II can be added as an enzyme-specific selective supplement to agar plates and as an enrichment agent to broth culture.

STAADIUMTM PeptiZide L-Ala is a targeted inhibitor for L-alanine aminopeptidase-producing bacteria. The antibacterial activity of STAADIUMTM PeptiZide L-Ala is triggered by the enzyme L-alanine aminopeptidase, an enzyme located in the bacterial cell wall and is a characteristic of Gram-negative bacteria. L-alanine aminopeptidase has not been experimentally detected in Campylobacter species, anaerobic bacilli, Gram-positive and Gram-variable bacteria. More details in the application notes document.

Sulbactam sodium is a beta-lactamase inhibitor with action on bacterial beta-lactamase enzymes and is used for enhancing the efficacy of beta-lactam antibiotics.

Non-nucleoside inhibitor of reverse transcriptase; anti-viral