Alkene derivatives

Ricinolein is the chief constituent of castor oil and is the triglyceride of ricinoleic acid. Castor oil, the expressed natural fatty oil of the seeds of Ricinus communis also contains mixtures of the glycerides of isoricinoleic acids and much smaller traces of tristearin and the glyceride of dihydroxysteric acid. Ricinolein is the active principle in the use of castor oil as a purgative and solvent for several medically useful alkaloids.

Aglepristone () (brand name Alizin; former developmental code names RU-46534, RU-534) is a synthetic, steroidal antiprogestogen related to mifepristone. Aglepristone, similarly to mifepristone, also possesses some antiglucocorticoid activity. Aglepristone is used as an abortifacent, to induce parturition, and as a treatment for mammary hyperplasia and pyometra. It is only used in cats and dogs. == See also == Lilopristone Onapristone Telapristone Toripristone

Mevinphos is a toxic organophosphate insecticide that acts as an acetylcholinesterase inhibitor to control insects in a wide range of crops. It was most commonly used for the control of chewing and sucking insects like aphids, grasshoppers, cutworms, leafhoppers, and caterpillars, as well as spider mites and ticks. Common synonym names are duraphos, fosdrin, menite, mevinfos, mevinox, phosdrin, and phosdrine. While there is no specific ban in the EU, it is not approved for use in any member nations. Nor is it approved for use in Canada. The EPA issued a Cancellation Order for all Mevinphos reg

Basketene (IUPAC name: pentacyclo[4.4.0.02,5.03,8.04,7]dec-9-ene

Beraprost is a pharmaceutical drug used in several Asian countries, including Japan and South Korea, as a vasodilator and antiplatelet agent. It is classified as a prostacyclin analog.

chemical compound

Oleylamine is an organic compound with a molecular formula C18H35NH2. It is an unsaturated fatty amine related to the fatty acid oleic acid. The pure compound is a clear and colorless liquid. Commercially available oleylamine reagents vary in colour from clear and colorless to varying degrees of yellow due to impurities. The major impurities include trans isomer (elaidylamine) and other long chain amines with varying chain lengths. Minor impurities include oxygen-containing substances such as amides and nitroalkanes.

Kavain is the principal kavalactone found in the roots of the kava plant (Piper methysticum), where it contributes significantly to the plant's psychoactive and anxiolytic effects.

chemical compound

Valencene is a sesquiterpene that is an aroma component of citrus fruit and citrus-derived odorants. It is obtained inexpensively from Valencia oranges. Valencene is biosynthesized from farnesyl pyrophosphate (FPP) by the CVS enzyme.

Istradefylline, sold under the brand name Nourianz, is a medication used as an add-on treatment to levodopa/carbidopa in adults with Parkinson's disease (PD) experiencing "off" episodes. Istradefylline reduces "off" periods resulting from long-term treatment with the antiparkinson drug levodopa. An "off" episode is a time when a patient's medications are not working well, causing an increase in PD symptoms, such as tremor and difficulty walking.

Oxantel is an anthelmintic. It has typically been used in human and animal medicine as a treatment for intestinal worms. It has also been shown to inhibit fumarate reductase in some pathogenic bacteria.

Azanidazole is a nitroimidazole derivative used in gynecology for the treatment of trichomonal infections.

Apronal (brand name Sedormid), or apronalide, also known as allylisopropylacetylurea or allylisopropylacetylcarbamide, is a hypnotic/sedative drug of the ureide (acylurea) group synthesized in 1926 by Hoffmann-La Roche. Though it is not a barbiturate, apronal is similar in structure to the barbiturates (being an open-chain carbamide instead of having a heterocyclic ring). In accordance, it is similar in action to the barbiturates, although considerably milder in comparison (formerly used as a daytime sedative at doses of 1 to 2 grams every 3 to 4 hours). Upon the finding that it caused patient

Copaene, or more precisely, α-copaene, is the common (or trivial) chemical name of an oily liquid hydrocarbon that is found in a number of essential oil-producing plants. The name is derived from that of the resin-producing tropical copaiba tree, Copaifera langsdorffii, from which the compound was first isolated in 1914. Its structure, including the chirality, was determined in 1963. The double-bond isomer with an exocyclic-methylene group, β-copaene, was first reported in 1967.

Desmethoxyyangonin or 5,6-dehydrokavain is one of the six main kavalactones found in the Piper methysticum (kava) plant. It is a reversible inhibitor of monoamine oxidase B (MAO-B), likely contributing to increased dopamine levels in the brain's nucleus accumbens and supporting kava's attention-enhancing effects. Unlike other kavalactones, it does not modulate GABAA receptors. It also strongly induces the liver enzyme CYP3A23. It is an active compound in Alpinia pricei with anti-inflammatory and liver-protective effects that improve survival in mice with endotoxin-induced hepatitis.

Ectocarpene is the rearrangement product of pre-ectocarpene, the sexual attractant, or pheromone, found with several species of brown algae (Phaeophyceae). Ectocarpene has a fruity scent and can be sensed by humans when millions of algae gametes swarm the seawater and the females start emitting the substance's precursor to attract the male gametes.

chemical compound

Riddelliine is a chemical compound classified as a pyrrolizidine alkaloid. It was first isolated from Senecio riddellii and is also found in a variety of plants including Jacobaea vulgaris, Senecio vulgaris, and others plants in the genus Senecio.

Chavicine is a possibly pungent compound found in black pepper and other species of the genus Piper. It is one of the four geometric isomers of piperine.

The esperamicins are chromoprotein enediyne antitumor antibiotics of bacterial origin. Esperamicin A1 is the most well studied compound in this class. Esperamcin A1 and the related enediyne calicheamicin are the two most potent antitumor agents known. The esperamicins are extremely toxic DNA splicing compounds.

Methysticin is one of the six major kavalactones found in the kava plant. It enhances the activity of the GABAA receptor, acting as a positive modulator without affecting the benzodiazepine binding site. This effect is attributed to structural features such as its angular lactone ring and is similar in strength to other kavalactones like kavain and dihydromethysticin. Methysticin also induces the liver enzyme CYP1A1, which plays a role in the toxification of benzo[a]pyrene into a highly carcinogenic metabolite, although such induction has not been observed in vivo in humans or animals. Additio

Crotylbarbital (Mepertan, Kalipnon, Barotal), also known as crotarbital, is a barbiturate derivative developed by Eli Lilly in the 1930s. It has sedative and hypnotic effects, and was used for the treatment of insomnia until it was replaced by newer alternative drugs with fewer side effects and lower risk of overdose.

Lafutidine (INN) is a second generation histamine H2 receptor antagonist having multimodal mechanism of action and used to treat gastrointestinal disorders. It is marketed in South Korea, Japan and India.

chemical compound

Gyrinal is an organic chemical compound  - an unsaturated ketoaldehyde - with the formula C14H18O3, obtained from the whirligig beetle (the water boatman, Gyrinus natator). It is a powerful antiseptic and fish and mammal toxin, and thus used as a defensive compound. Typically the beetles contain approx. 80 microgram of the compound. The LD50 of the compound is approx. 45 mg/kg in mice.

4-Hydroxynonenal, or 4-hydroxy-2E-nonenal or 4-hydroxy-2-nonenal or 4-HNE or HNE, (''''''), is an α,β-unsaturated hydroxyalkenal that is produced by lipid peroxidation in cells. 4-HNE is the primary α,β-unsaturated hydroxyalkenal formed in this process. It is a colorless oil. It is found throughout animal tissues, and in higher quantities during oxidative stress due to the increase in the lipid peroxidation chain reaction, due to the increase in stress events. 4-HNE has been hypothesized to play a key role in cell signal transduction, in a variety of pathways from cell cycle events to cellular

Germacrenes are a group of five naturally occurring volatile organic hydrocarbons of the sesquiterpene and cycloalkene class. Germacrenes are typically produced in a number of plant species for their antimicrobial and insecticidal properties, though they also play a role as insect pheromones. Two prominent molecules are germacrene A and germacrene D.

Ptaquiloside is a norsesquiterpene glucoside produced by bracken ferns (majorly Pteridium aquilinum) during metabolism. It is identified to be the main carcinogen of the ferns and to be responsible for their biological effects, such as haemorrhagic disease and bright blindness in livestock and oesophageal, gastric cancer in humans. Ptaquiloside has an unstable chemical structure and acts as a DNA alkylating agent under physiological conditions. It was first isolated and characterized by Yamada and co-workers in 1983.

chemical compound

Neticonazole (INN) is an imidazole antifungal for the treatment of fungal skin infections.

Binapacryl was used as a miticide and fungicide. Chemically, it is an ester derivative of dinoseb. Although binapacryl has low toxicity itself, it is readily metabolized to form dinoseb, which is highly toxic.

Yessotoxins are a group of lipophilic, sulfur bearing polyether toxins that are related to ciguatoxins. They are produced by a variety of dinoflagellates, most notably Lingulodinium polyedrum and Gonyaulax spinifera.

Epalrestat is a carboxylic acid derivative and a noncompetitive and reversible aldose reductase inhibitor used for the treatment of diabetic neuropathy, which is one of the most common long-term complications in patients with diabetes mellitus. It reduces the accumulation of intracellular sorbitol which is believed to be the cause of diabetic neuropathy, retinopathy and nephropathy It is well tolerated, with the most commonly reported adverse effects being gastrointestinal issues such as nausea and vomiting, as well as increases in certain liver enzymes. Chemically, epalrestat is unusual in th

Isometheptene (usually as isometheptene mucate) is a sympathomimetic amine sometimes used in the treatment of migraines and tension headaches due to its vasoconstricting properties; that is, it causes constriction (narrowing) of blood vessels (arteries and veins). Along with paracetamol and dichloralphenazone, it is one of the constituents of Amidrine.

Nalfurafine (INN, USAN; brand name Remitch; former developmental code names TRK-820, AC-820, MT-9938) is an antipruritic (anti-itch drug) that is marketed in Japan for the treatment of uremic pruritus in individuals with chronic kidney disease undergoing hemodialysis. It activates the κ-opioid receptor (KOR) and is potent, selective, and centrally active. It was the first selective KOR agonist approved for clinical use. It has also been dubiously referred to as the "first non-narcotic opioid drug" in history.

Brallobarbital was a barbiturate developed in the 1920s. It has sedative and hypnotic properties, and was used for the treatment of insomnia. Brallobarbital was primarily sold as part of a combination product called Vesparax, composed of 150 mg secobarbital, 50 mg brallobarbital and 50 mg hydroxyzine. The long half-life of this combination of drugs tended to cause a hangover effect the next day, and Vesparax fell into disuse once newer drugs with lesser side effects had been developed. Vesparax reportedly was the drug that musician Jimi Hendrix supposedly overdosed on and led to

chemical compound

enone means (ene + one) ene means '='. and -one means - C= O group

chemical compound

Noretynodrel, or norethynodrel, sold under the brand name Enovid among others, is a progestin medication which was previously used in birth control pills and in the treatment of gynecological disorders but is now no longer marketed. It was available both alone and in combination with an estrogen. The medication is taken by mouth.

α-Cadinol or 10α-hydroxy-4-cadinene is an organic compound, a sesquiterpenoid alcohol.

Pyrrobutamine is an antihistamine and anticholinergic.

Propallylonal (trade names Nostal, Quietal, Ibomal) is a barbiturate derivative invented in the 1920s. It has sedative, hypnotic and anticonvulsant properties, and is still rarely prescribed as a sleeping medication in some Eastern-European countries.

Teprenone (or geranylgeranylacetone), sold under the brand name Selbex, is a medication used for the treatment of gastric ulcers.

4,4′-Diisothiocyano-2,2′-stilbenedisulfonic acid (DIDS) is an anion exchange inhibitor, blocking reversibly, and later irreversibly, exchangers such as chloride-bicarbonate exchanger.

Polyprenols are natural long-chain isoprenoid alcohols of the general formula H-(C5H8)n-OH, where n is the number of isoprene units. Any prenol with more than 4 isoprene units is a polyprenol. Polyprenols play an important function, acting as natural bioregulators and are found in small quantities in various plant tissues. Dolichols, which are found in all living creatures, including humans, are their 2,3-dihydro derivatives.

Sulfadicramide (marketed as Irgamid) is an anti-infective.

Tranilast (INN, brand name Rizaben) is an antiallergic drug. It was developed by Kissei Pharmaceuticals and was approved in 1982 for use in Japan and South Korea for bronchial asthma. Indications for keloid and hypertrophic scar were added in the 1980s.

Butallylonal is a barbiturate derivative invented in the 1920s. It has sedative properties, and was used primarily as an anaesthetic in veterinary medicine. Butallylonal is considered similar in effects to pentobarbital but is longer in action, being considered an intermediate-acting barbiturate rather than short-acting.

Boromycin is a bacteriocidal polyether-macrolide antibiotic. It was initially isolated from the Streptomyces antibioticus, and is notable for being the first natural product found to contain the element boron. It is effective against most gram-positive bacteria, but is ineffective against gram-negative bacteria. Boromycin kills bacteria by negatively affecting the cytoplasmic membrane, resulting in the loss of potassium ions from the cell. Boromycin has not been approved as a drug for medical use.

Seletracetam (UCB 44212) is a pyrrolidone-derived drug of the racetam family that is structurally related to levetiracetam (trade name Keppra). It was under development by UCB Pharmaceuticals as a more potent and effective anticonvulsant drug to replace levetiracetam but its development has been halted.

chemical compound

Pacrinolol is a beta adrenergic receptor antagonist.

chemical compound

Allithiamine (thiamine allyl disulfide or TAD) is a lipid-soluble form of vitamin B1 which was discovered in garlic (Allium sativum) in the 1950s along with its homolog prosultiamine. They were both investigated for their ability to treat Wernicke–Korsakoff syndrome and beriberi better than thiamine.

Oudenone is a molecule found in fungus metabolism. It is an inhibitor of the enzyme tyrosine hydroxylase.

Avenasterol, or Δ-7-Avenasterol is a natural, stigmastane-type sterol.

Geiparvarin is a coumarin derivative found in the leaves of the Australian Willow (Geijera parviflora). It is a monoamine oxidase inhibitor.

chemical compound