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Thebaine (paramorphine), also known as codeine methyl enol ether, is an opiate alkaloid, its name coming from the Greek Θῆβαι, Thēbai (Thebes), an ancient city in Upper Egypt. A minor constituent of opium , thebaine is chemically similar to both morphine and codeine , but has stimulatory rather than depressant effects.
The structure of morphine is not particularly complex, however the electrostatic polarization of adjacent bonded atoms does not alternate uniformly throughout the structure. This "dissonant connectivity" makes bond formation more difficult and therefore significantly complicates any synthetic strategy that is applied to this family of molecules ...
Morphinan is the prototype chemical structure of a large chemical class of psychoactive drugs, consisting of opiate analgesics, cough suppressants, and dissociative hallucinogens, among others. Typical examples include compounds such as morphine, codeine, and dextromethorphan (DXM).
Codeine Chemical structure of morphine. Opiates belong to the large biosynthetic group of benzylisoquinoline alkaloids, and are so named because they are naturally occurring alkaloids found in the opium poppy. The major psychoactive opiates are morphine, codeine, and thebaine.
The following other wikis use this file: Usage on ar.wikipedia.org ذيبايين; Usage on azb.wikipedia.org تبائین; Usage on bn.wikipedia.org
Chemical structure of morphine. The benzylisoquinoline backbone is shown in green. Morphine structure showing its standard ring lettering and carbon numbering system [citation needed] Same structure, but in a three-dimensional perspective. Morphine is a benzylisoquinoline alkaloid with two additional ring closures. [106]
Not from the actual human body, of course, but from the anatomical diagrams that purported to represent it. Goss was the esteemed editor of the 25th edition of the seminal classic Gray’s Anatomy . Internationally lauded as the authority on all things anatomical, Gray’s Anatomy had been considered essential for any would-be physician to own ...
Most alkaloids contain oxygen in their molecular structure; those compounds are usually colorless crystals at ambient conditions. Oxygen-free alkaloids, such as nicotine [160] or coniine, [36] are typically volatile, colorless, oily liquids. [161] Some alkaloids are colored, like berberine (yellow) and sanguinarine (orange). [161]