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Strictamine
Strictamine is an alkaloid isolated from ''Alstonia scholaris ''Alstonia scholaris'', commonly called blackboard tree, Scholar Tree, Milkwood or devil's tree in English, is an evergreen tropical tree in the Dogbane Family (Apocynaceae). It is native to southern China, tropical Asia (mainly the Indian subcon ...''. Because of its unusual chemical structure, it has attracted research interest and several laboratory syntheses have been reported. References Tryptamine alkaloids Quinolizidine alkaloids Indoloquinolizines Heterocyclic compounds with 5 rings Methyl esters {{alkaloid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alstonia Scholaris
''Alstonia scholaris'', commonly called blackboard tree, Scholar Tree, Milkwood or devil's tree in English, is an evergreen tropical tree in the Dogbane Family (Apocynaceae). It is native to southern China, tropical Asia (mainly the Indian subcontinent and Southeast Asia）and Australasia, where it is a common ornamental plant. It is a toxic plant, but is used traditionally for myriad diseases and complaints. Description ''Alstonia scholaris'' is a glabrous tree and grows up to tall. Its mature bark is grayish and its young branches are copiously marked with lenticels.One unique feature of this tree is that in some places, such as New Guinea, the trunk is three-sided (i.e. it is triangular in cross-section). The upper side of the leaves are glossy, while the underside is greyish. Leaves occur in Whorl (botany), whorls of three to ten; Petiole (botany), petioles are ; the leathery leaves are narrowly obovate to very narrowly spathulate, base cuneate, apex usually rounded and up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkaloid
Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar structure may also be termed alkaloids. In addition to carbon, hydrogen and nitrogen, alkaloids may also contain oxygen, sulfur and, more rarely, other elements such as chlorine, bromine, and phosphorus.Chemical Encyclopedia: alkaloids xumuk.ru Alkaloids are produced by a large variety of organisms including , , Medicinal plant, plants, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Synthesis
Total synthesis is the complete chemical synthesis of a complex molecule, often a natural product, from simple, commercially-available precursors. It usually refers to a process not involving the aid of biological processes, which distinguishes it from semisynthesis. Syntheses may sometimes conclude at a precursor with further known synthetic pathways to a target molecule, in which case it is known as a formal synthesis. Total synthesis target molecules can be natural products, medicinally-important active ingredients, known intermediates, or molecules of theoretical interest. Total synthesis targets can also be organometallic or inorganic, though these are rarely encountered. Total synthesis projects often require a wide diversity of reactions and reagents, and subsequently requires broad chemical knowledge and training to be successful. Often, the aim is to discover a new route of synthesis for a target molecule for which there already exist known routes. Sometimes, however, no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tryptamine Alkaloids
Tryptamine is an indolamine metabolite of the essential amino acid, tryptophan. The chemical structure is defined by an indole ─ a fused benzene and pyrrole ring, and a 2-aminoethyl group at the second carbon (third aromatic atom, with the first one being the heterocyclic nitrogen). The structure of tryptamine is a shared feature of certain aminergic neuromodulators including melatonin, serotonin, bufotenin and psychedelic derivatives such as dimethyltryptamine (DMT), psilocybin, psilocin and others. Tryptamine has been shown to activate trace amine-associated receptors expressed in the mammalian brain, and regulates the activity of dopaminergic, serotonergic and glutamatergic systems. In the human gut, symbiotic bacteria convert dietary tryptophan to tryptamine, which activates 5-HT4 receptors and regulates gastrointestinal motility. Multiple tryptamine-derived drugs have been developed to treat migraines, while trace amine-associated receptors are being explored as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quinolizidine Alkaloids
Quinolizidine alkaloids are natural products that have a quinolizidine structure; this includes the lupine alkaloids. Occurrence Quinolizidine alkaloids can be found in the plant family of legumes, especially in papilionaceous plants. While the lupine alkaloids (following their name) can be found in lupines, tinctorin, for example, was isolated from the dyer's broom. Examples More than 200 quinolizidine alkaloids are known which can be classified into 6 structural types: * the lupinine type with 34 known structures, including lupinine and its derivatives * the camoensine type with 6 known structures, including camoensin * the spartein type with 66 structures, including sparteine, lupanine, angustifoline * the α-pyridone type with 25 structures, including anagyrine and cytisine * the matrine type with 31 structures, including matrine * and the ormosanin type with 19 structures, including ormosanine. (–)-Lupinine Structural Formula V2.svg, (–)-lupinine (6R,7S,9S,1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterocyclic Compounds With 5 Rings
A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic chemistry is the branch of organic chemistry dealing with the synthesis, properties, and applications of these heterocycles. Examples of heterocyclic compounds include all of the nucleic acids, the majority of drugs, most biomass (cellulose and related materials), and many natural and synthetic dyes. More than half of known compounds are heterocycles. 59% of US FDA-approved drugs contain nitrogen heterocycles. Classification The study of heterocyclic chemistry focuses especially on unsaturated derivatives, and the preponderance of work and applications involves unstrained 5- and 6-membered rings. Included are pyridine, thiophene, pyrrole, and furan. Another large class of heterocycles refers to those fused to benzene rings. For example, the fused benzene derivatives of pyridine, thiophene, pyrrole, and furan are quinol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
