Search results
Results from the WOW.Com Content Network
Isoquinoline and quinoline are benzopyridines, which are composed of a benzene ring fused to a pyridine ring. In a broader sense, the term isoquinoline is used to make reference to isoquinoline derivatives. 1-Benzylisoquinoline is the structural backbone in many naturally occurring alkaloids such as papaverine.
In general, isoquinoline alkaloids can have different effects. The opium alkaloids may have sedative, psychotropic or analgesic properties. [7] Morphine and codeine are indeed used as analgesics. [8] Papaverine, in contrast, has an antispasmodic effect if it comes from smooth muscles, as is the case in humans in the gastrointestinal tract or ...
Benzylisoquinoline alkaloids are found in several plant families, including the poppy family (Papaveraceae), the annonaceae family, and the laurel family. [1] Well-known representatives are primarily found in poppy plants, specifically those from which opium is derived, as well as in actaea. [2]
Pages in category "Isoquinoline alkaloids" The following 36 pages are in this category, out of 36 total. This list may not reflect recent changes. ...
The bisbenzylisoquinoline alkaloids are considered the largest group within the isoquinoline alkaloids. [2] The best-known representative of this group is tubocurarine chloride. Other representatives include dauricin, oxyacanthin, tetrandrine, and tiliacorin. [3]
Its principal use is as a precursor to 8-hydroxyquinoline, which is a versatile chelating agent and precursor to pesticides. Its 2- and 4-methyl derivatives are precursors to cyanine dyes . Oxidation of quinoline affords quinolinic acid (pyridine-2,3-dicarboxylic acid), a precursor to the herbicide sold under the name "Assert".
S)-Norcoclaurine has been identified as the central 1-benzyl-tetrahydro-isoquinoline precursor [1] [2] from which numerous complex biosynthetic pathways eventually emerge. These pathways collectively lead to the structurally disparate compounds comprising the broad classification of plant natural products referred to as benzylisoquinoline ...
Alkaloids with a quinoline partial structure are widespread and are usually further subdivided according to their occurrence and biogenetic origin.