Levonadifloxacin is the S-(-) isomer of the benzoquinolizine fluoroquinolone nadifloxacin and is two- to four-fold more active than the racemic mixture. Levonadifloxacin is a potent antibacterial agent against Gram-positive bacteria especially against methicillin resistance Staphylococcus aureus. It also possesses potent bactericidal activity against other resistant variants like quinolone-resistant Staphylococcus aureus, vancomycin and glycopeptide intermediate Staphylococcus aureus and vancomycin resistant Staphylococcus aureus. Intravenous dosage form developed to treat complicated skin and skin structure infections and has recently completed Phase III studies in India and Phase I studies in USA.

Asperlin (also known as U-13,933), a fungal natural product that was isolated from marine-derived fungus Aspergillus sp. SF-5044 and exhibits antifungal and anti-inflammatory properties in vitro. Experiments in vivo have shown that this compound can prevent atherosclerosis through suppressing inflammation rather than ameliorating dyslipidemia. In addition, asperlin can be developed as a potential anti-cancer therapeutics. It shows anti-cancer properties through ROS generation and ATM pathway in human cervical carcinoma cells.

Nifuralide, a 5-nitrofuran derivative, is an antibacterial agent. It was used for controlling Salmonella choleraesuis in swine. The mode of action of 5-nitrofuran analogues is based on red-ox biotransformation.

Rifamides (NSC-143418) are drugs used in the treatment of tuberculosis. They also have immunosuppressive activity, the exact mechanism of which is still unknown, although the ability of rifamides to inhibit tumor necrosis factor (TNF)-induced NF-kB activation may be associated with it. A variety of rifamide analogues exist, such as rifamycin B, rifapentine, rifamycin SV, rifabutin and rifampicin.

Glucosulfamide was studied as an antibacterial agent. Information about the current use of this compound is not available.

LASINAVIR, a hydroxyethylene derivative, is highly specific human immunodeficiency virus (HIV) protease inhibitor with an IC50 of 1 nM. Its clinical development was discontinued.

Cefrotil is an antibiotic drug patented by pharmaceutical company Farbwerke Hoechst A.-G. And used as pharmaceutical intermediates

Cefaloram is aminocephalosporanic acid derivative with potent antibacterial activity. Cefaloram binds to and inactivates penicillin-binding proteins (PBPs) located on the inner membrane of the bacterial cell wall. PBPs are enzymes involved in the terminal stages of assembling the bacterial cell wall and in reshaping the cell wall during growth and division. Inactivation of PBPs interferes with the cross-linkage of peptidoglycan chains necessary for bacterial cell wall strength and rigidity. This results in the weakening of the bacterial cell wall and causes cell lysis

Bromociclen (5-(Bromomethyl)-1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hept-2-ene; 5-(Bromomethyl)-1,2,3,4,7,7-hexachloro-2-norbornene) is a halogenated bicyclic insecticide. Bromociclen is used for the control of stored-product insects as well as against ecto-parasites.

Bromchlorenone is Halogenated benzazole derivative with potent antimicrobial activity against pathogenic fungi, molds and yeasts for topical use. Currently Bromchlorenone used as reagent for organic syntesys.