Delapril is a lipophilic nonsulfhydryl angiotensin-converting enzyme (ACE) inhibitor, which has been shown to exert potent ACE inhibitory activity and is marketed as an antihypertensive drug. Delapril has been shown to exist in solution as a mixture of s-cis and s-trans conformational isomers, as a result of restricted rotation about the amide bond.

Tebipenem pivoxil is an oral carbapenem prodrug that was originated by Wyeth (now Pfizer). It was approved by Pharmaceuticals and Medical Devices Agency of Japan (PMDA) on Apr 22, 2009. It was developed and marketed as Orapenem® by Meiji Seika in Japan. Tebipenem pivoxil is a broad-spectrum orally-administered antibiotic, from the carbapenem subgroup of β-lactam antibiotics. Carbapenems are a class of beta-lactam antibiotics, which act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. It is used to treat otorhinolaryngological infection, otitis media and bacterial pneumonia. Orapenem® is available as granules for oral use, containing 100 mg Tebipenem pivoxil/g granules. According to the weight of children, 4 mg/kg, and twice a day after dinner.

Levormeloxifene (INN) is an experimental selective estrogen receptor modulator (SERM) that was being developed as an alternative to estrogen replacement therapy for the treatment and prevention of postmenopausal bone loss. Levormeloxifene is the levorotatory enantiomer of non-hormonal, non-steroidal oral contraceptive -- ormeloxifene (trade names Novex-DS, Centron, and Sevista). The development of Levormeloxifene was stopped because of a high incidence of gynecologic adverse events during clinical trials.

METHYLMETHIONINE (S-Methionine methyl sulfonium, SMMS) chloride is a derivative of methionine metabolism in some plants. Methylmethionine has therapeutic effects on gastrointestinal ulceration potentially via its ability to promote dermal fibroblast migration and growth. The natural derivative Methylmethionine is biosynthesized from L-methionine which is first converted to S-adenosylmethionine. The subsequent conversion, involving replacement of the adenosyl group by a methyl group is catalyzed by the enzyme methionine S-methyltransferase. Methylmethionine is particularly abundant in plants, being more abundant than methionine. S-Methylmethionine is sometimes referred to as vitamin U, but it is not considered a true vitamin. The term was coined in 1950 by Garnett Cheney for uncharacterized anti-ulcerogenic factors in raw cabbage juice that may help speed healing of peptic ulcers.

Avorelin is a superagonist of natural luteinizing-hormone-releasing-hormone. Avorelin has been formulated in high molecular weight polylactic glycolic acid to afford protracted and continuous release of the peptide from subcutaneous implants. Avorelin has been in phase II clinical trials by Mediolanum for the treatment of prostate cancer, breast cancer and endometriosis. However, this research has been discontinued. Adverse events mainly related to androgen suppression (hot flushes, decreased libido and impotence) or the nature of the disease (skeletal pain).

Candoxatril is the orally-active prodrug of candoxatrilat (UK-73967), a potent neutral endopeptidase (NEP) inhibitor. Neutral endopeptidase inhibitors such as Candoxatril have a dual mechanism of action. They inhibit two metalloprotease enzymes, neutral endopeptidase, and ACE, resulting in an increased availability of natriuretic peptides that exhibit vasodilatory effects and, possibly, tissue protective effects. Candoxatril is the first drug of its kind to be released for clinical trials regarding heart failure. This is because Candoxatril produces favorable hemodynamic effects in patients with chronic heart failure. It has been demonstrated that Candoxatril is associated with a beneficial hemodynamic effect that is useful both for rest and exercise. In several different studies, candoxatril has been shown to improve performance in people with heart failure. In one study, 12 different patients were selected, all with moderately severe heart failure. On day one of this study, the candoxatril had increased plasma ANP levels, suppressed aldosterone and decreased right atrial and pulmonary capillary wedge pressures. After treatment for 10 days, patients health had improved with an increase of basal ANP and a decrease of aldosterone, along with a reduced body weight that could be a reflection of chronic natriuretic, diuretic effects, or both. It was decided that on day 10 of the study, the effects of candoxatril were similar to that on day one.

Talaporfin (INN, also known as aspartyl chlorin, mono-L-aspartyl chlorin e6, NPe6, or LS11) is a photosensitizer used in photodynamic therapy (PDT). Talaporfin is injected into tumors and other regret tissues where it accumulates. It’s activated with light emitting diodes (LED). It absorbs red light at 664-667 nm normally provided by a laser tuned to this wavelength. It was approved in Japan (in 2004) for PDT of lung cancer and glioma and marketed as Laserphyrin. Clinical and preclinical studies indicate that talaporfin sodium treatment may offer a powerful option to synergize current therapies, as well as an alternative monotherapy in treating cancer.

AZOTOMYCIN, a diazo analog of L-glutamine, is an antineoplastic antibiotic isolated from Streptomyces ambofaciens. It inhibits glutamine-dependent enzymes involved in purine and pyrimidine biosynthesis, resulting in inhibition of DNA synthesis. It was tested in human malignancies in the 1950s.

Lenapenem is an anti-bacterial agent that was tested in late 90's in phase II clinical trials against bacterial infections. Lenapenem was shown to be active against both Gram-positive and Gram-negative bacteria and exerted its therapeutic effect by inhibiting penicillin binding proteins. The development of the drug was terminated due to the safety reason.

Dexibuprofen, S(+)-ibuprofen, is a non-steroidal anti-inflammatory drug and active dextrorotatory enantiomer of ibuprofen. Pharmacotherapeutic effects of dexibuprofen are more potent with lesser side effects than that of the racemic mixture of both isomers. In the acute and chronic treatment of osteoarthritis, it exhibits equivalent efficacy and tolerability as that of celecoxib. Dexibuprofen is a non-selective inhibitor of cyclooxygenase (COX), which is an enzyme involved in prostaglandin (mediators of pain and fever) and thromboxane (stimulators of blood clotting) synthesis via the arachidonic acid pathway. Dexibuprofen is a non-selective cyclooxygenase inhibitor and hence, it inhibits the activity of both COX-1 and COX-2. The inhibition of COX-2 activity decreases the synthesis of prostaglandins involved in mediating inflammation, pain, fever, and swelling while the inhibition of COX-1 is thought to cause some of the side effects of Dexibuprofen including GI ulceration. The major disadvantage of dexibuprofen is its low bioavailability, the account of its low solubility in physiological media.