Endothal (also known as Endothall), a herbicide for terrestrial and aquatic plants, is a potent, selective protein phosphatase 2A (PP2A) inhibitor. It also inhibits protein phosphatase 1 (PP1). Endothall is considered safe in drinking water, but in case of consumption for a long period, it can cause stomach or intestinal problems.

Medroxalol is a competitive antagonist at alpha1-adrenergic receptors and beta1-adrenergic receptors. Medroxalol also an agonist at beta2-adrenergic receptors. Medroxalol exerts antihypertensive and vasodilating effects. It was concluded that the principal action of medroxalol was to produce a fall in blood pressure by decreasing peripheral vascular resistance more than cardiac output.

Zometapine was developed as an antidepressant drug. This drug participated in phase II clinical trial in patients with depression where it showed as an effective agent. However, information about the further development of Zometapine is not available.

Tolimidone, Lyn protein-tyrosine kinase stimulant, is in phase II clinical by Melior Discovery and Bukwang for the treatment of type 2 diabetes. It is also in phase II clinical by Pfizer for the treatment of ulcer. However, this research has been discontinued.

Dezaguanine is a broad spectrum guanine antimetabolite. This compound differs from guanine only in the substitution of a carbon for the 3-nitrogen of guanine. Dezaguanine must be converted to its nucleotides to be active. Dezaguanine nucleotides inhibit synthesis of guanine nucleotides, and can be incorporated into nucleic acids in place of guanine nucleotides; incorporation into DNA may be particularly important in the cytotoxicity of this compound. Addition of certain purines or purine nucleosides can prevent dezaguanine cytotoxicity in vitro. It has exhibited sufficient preclinical antitumor activity, particularly against rat and mouse mammary adenocarcinomas, slow and fast growing mammary tumors in mice and the human breast xenograft subrenal capsule implant system. It has completed one phase I trial.

Information related to the biological and/or pharmacological activity of glyoctamide is absence. Only one mention exists, describing, that this compound was developed as the antidiabetic agent by Hoechst Roussel Pharm. Inc

N,N-Dimethyl-5-Methoxytryptamine (aka 5-MeO-DMT) is a psychedelic of the tryptamine class. It is found in a wide variety of plant species, and a single psychoactive toad species, the Colorado River toad. Like its close relatives DMT and bufotenin (5-HO-DMT), it has been used as an entheogen in South America. It can also be found in the dart poison traditionally used by the Yanoama Indians of Upper Orinoco. It acts as a non-selective serotonin (5-HT) agonist. -MeO-DMT is O-demethylated by polymorphic cytochrome P450 2D6 (CYP2D6) to an active metabolite, bufotenine. 5-MeO-DMT is classified as a controlled substance in China, Australia, Sweden, Turkey, and the USA.

16,16-dimethyl Prostaglandin E2 acts as an agonist on most prostaglandin E (EP) receptor subtypes, it has prolonged half-life in vivo, because it is not a substrate for the enzyme 15-hydroxy prostaglandin dehydrogenase. This compound was studied by Fate Therapeutics in phase I clinical trials under the name FT1050 or ProHema-CB for pediatric patients with hematologic malignancies. However, this study was terminated.

Furobufen, a propionic acid derivative produced anti-inflammatory, antiarthritic, and antipyretic effects. It was shown that this compound could reduce the pain resulting from an acute inflammatory reaction and the activity profile of furobufen was similar to that of the non-steroidal anti-inflammatory drugs. Information about the current development of this compound is not available.

GSK-2636771 is a potent, orally bioavailable, PI3Kβ-selective inhibitor, sensitive to PTEN null cell lines. GSK-2636771 shows selectively inhibitory activity in PTEN null cell lines (human prostate adenocarcinoma PC-3 and breast cancer HCC70) with EC50 of 36 nM and 72 nM, respectively. GSK-2636771 significantly decreases cell viability in p110β-reliant PTEN-deficient PC3 prostate and BT549 and HCC70 breast cancer cell lines, and leads to a marked decrease of AKT phosphorylation only in the control prostate and breast cancer cell lines. On April 1 2016 GlaxoSmithKine completes a phase-I/II trial for Solid tumours (Late-stage disease) in USA, United Kingdom and South Korea (NCT01458067).